Polishing.

Move all primary interaction API into TypeInformation to prepare making all implementations package protected. Adapt all deprecated API usage in Spring Data Commons to the new one.

Benchmark results look as follows:

2.7
                                                                                                Mode  Cnt          Score          Error  Units
TypicalEntityReaderBenchmark.hasReadTarget                                                     thrpt   10   81982861,995 ±   269948,368  ops/s
TypicalEntityReaderBenchmark.kotlinDataClass                                                   thrpt   10   18472975,689 ±   161234,912  ops/s
TypicalEntityReaderBenchmark.kotlinDataClassWithDefaulting                                     thrpt   10    4029631,568 ±    18990,863  ops/s
TypicalEntityReaderBenchmark.simpleEntityGeneratedConstructorAndField                          thrpt   10   11495517,933 ±   209269,454  ops/s
TypicalEntityReaderBenchmark.simpleEntityGeneratedConstructorAndProperty                       thrpt   10   11192152,036 ±   249721,563  ops/s
TypicalEntityReaderBenchmark.simpleEntityGeneratedConstructorArgsCreation                      thrpt   10   18835101,279 ±    81895,338  ops/s
TypicalEntityReaderBenchmark.simpleEntityGeneratedFieldAccess                                  thrpt   10   16309896,939 ±    80376,406  ops/s
TypicalEntityReaderBenchmark.simpleEntityGeneratedPropertyAccess                               thrpt   10   15471691,537 ±    52426,121  ops/s
TypicalEntityReaderBenchmark.simpleEntityReflectiveConstructorAndField                         thrpt   10   12080159,283 ±    49922,326  ops/s
TypicalEntityReaderBenchmark.simpleEntityReflectiveConstructorAndProperty                      thrpt   10   12166160,066 ±   173876,051  ops/s
TypicalEntityReaderBenchmark.simpleEntityReflectiveConstructorArgsCreation                     thrpt   10   13548906,437 ±   485944,886  ops/s
TypicalEntityReaderBenchmark.simpleEntityReflectiveFieldAccess                                 thrpt   10   16457347,670 ±    64170,567  ops/s
TypicalEntityReaderBenchmark.simpleEntityReflectivePropertyAccess                              thrpt   10   14115878,948 ±    57491,268  ops/s
TypicalEntityReaderBenchmark.simpleEntityReflectivePropertyAccessWithCustomConversionRegistry  thrpt   10   15137904,257 ±    51148,726  ops/s

DefaultTypeMapperBenchmark.readTyped                                                           thrpt   10  146820080,682 ± 13254238,407  ops/s
DefaultTypeMapperBenchmark.readTypedWithBaseType                                               thrpt   10   55420351,827 ±  1888634,217  ops/s
DefaultTypeMapperBenchmark.readUntyped                                                         thrpt   10  193934847,273 ±   442867,276  ops/s
DefaultTypeMapperBenchmark.readUntypedWithBaseType                                             thrpt   10  192032977,366 ±  4300192,665  ops/s

3.0 – Before this change
                                                                                                Mode  Cnt          Score         Error  Units
TypicalEntityReaderBenchmark.hasReadTarget                                                     thrpt   10   81124249,138 ±  174095,495  ops/s
TypicalEntityReaderBenchmark.kotlinDataClass                                                   thrpt   10   18685936,220 ±  243939,063  ops/s
TypicalEntityReaderBenchmark.kotlinDataClassWithDefaulting                                     thrpt   10    4125709,048 ±   17615,890  ops/s
TypicalEntityReaderBenchmark.simpleEntityGeneratedConstructorAndField                          thrpt   10   12277837,989 ±   96973,908  ops/s
TypicalEntityReaderBenchmark.simpleEntityGeneratedConstructorAndProperty                       thrpt   10   12419978,391 ±   45780,658  ops/s
TypicalEntityReaderBenchmark.simpleEntityGeneratedConstructorArgsCreation                      thrpt   10   18744593,010 ±   71655,735  ops/s
TypicalEntityReaderBenchmark.simpleEntityGeneratedFieldAccess                                  thrpt   10   16497286,465 ±   41150,718  ops/s
TypicalEntityReaderBenchmark.simpleEntityGeneratedPropertyAccess                               thrpt   10   15639640,554 ±   69758,391  ops/s
TypicalEntityReaderBenchmark.simpleEntityReflectiveConstructorAndField                         thrpt   10   11715068,503 ±   66085,900  ops/s
TypicalEntityReaderBenchmark.simpleEntityReflectiveConstructorAndProperty                      thrpt   10   12159285,083 ±   58171,950  ops/s
TypicalEntityReaderBenchmark.simpleEntityReflectiveConstructorArgsCreation                     thrpt   10   13711647,512 ±   66496,271  ops/s
TypicalEntityReaderBenchmark.simpleEntityReflectiveFieldAccess                                 thrpt   10   16287057,838 ±   54826,532  ops/s
TypicalEntityReaderBenchmark.simpleEntityReflectivePropertyAccess                              thrpt   10   13847665,634 ±  127834,292  ops/s
TypicalEntityReaderBenchmark.simpleEntityReflectivePropertyAccessWithCustomConversionRegistry  thrpt   10   15099300,270 ±   89030,403  ops/s

DefaultTypeMapperBenchmark.readTyped                                                           thrpt   10  151893972,774 ±  494555,250  ops/s
DefaultTypeMapperBenchmark.readTypedWithBaseType                                               thrpt   10   55869432,892 ±  389099,409  ops/s
DefaultTypeMapperBenchmark.readUntyped                                                         thrpt   10  192661151,755 ± 1075079,924  ops/s
DefaultTypeMapperBenchmark.readUntypedWithBaseType                                             thrpt   10  192315554,269 ± 3061160,314  ops/s

3.0 – After this change
                                                                                                Mode  Cnt          Score         Error  Units
TypicalEntityReaderBenchmark.hasReadTarget                                                     thrpt   10   82650245,236 ±  321384,577  ops/s
TypicalEntityReaderBenchmark.kotlinDataClass                                                   thrpt   10   21304680,430 ±  396764,834  ops/s
TypicalEntityReaderBenchmark.kotlinDataClassWithDefaulting                                     thrpt   10    4422187,275 ±   35088,721  ops/s
TypicalEntityReaderBenchmark.simpleEntityGeneratedConstructorAndField                          thrpt   10   13345503,496 ±  180490,423  ops/s
TypicalEntityReaderBenchmark.simpleEntityGeneratedConstructorAndProperty                       thrpt   10   13911653,366 ±  266028,886  ops/s
TypicalEntityReaderBenchmark.simpleEntityGeneratedConstructorArgsCreation                      thrpt   10   21192316,261 ±  356534,938  ops/s
TypicalEntityReaderBenchmark.simpleEntityGeneratedFieldAccess                                  thrpt   10   17533419,173 ±   49226,408  ops/s
TypicalEntityReaderBenchmark.simpleEntityGeneratedPropertyAccess                               thrpt   10   17393382,078 ±  114774,442  ops/s
TypicalEntityReaderBenchmark.simpleEntityReflectiveConstructorAndField                         thrpt   10   12867285,952 ±   62870,980  ops/s
TypicalEntityReaderBenchmark.simpleEntityReflectiveConstructorAndProperty                      thrpt   10   13208453,130 ±  272795,070  ops/s
TypicalEntityReaderBenchmark.simpleEntityReflectiveConstructorArgsCreation                     thrpt   10   14998467,714 ±   84265,782  ops/s
TypicalEntityReaderBenchmark.simpleEntityReflectiveFieldAccess                                 thrpt   10   17365982,413 ±  115287,403  ops/s
TypicalEntityReaderBenchmark.simpleEntityReflectivePropertyAccess                              thrpt   10   15503841,949 ±  123631,592  ops/s
TypicalEntityReaderBenchmark.simpleEntityReflectivePropertyAccessWithCustomConversionRegistry  thrpt   10   15716685,449 ±   64686,646  ops/s

DefaultTypeMapperBenchmark.readTyped                                                           thrpt   10  154433835,941 ± 1391455,835  ops/s
DefaultTypeMapperBenchmark.readTypedWithBaseType                                               thrpt   10   77919886,633 ±  438244,738  ops/s
DefaultTypeMapperBenchmark.readUntyped                                                         thrpt   10  194435210,217 ±  936274,571  ops/s
DefaultTypeMapperBenchmark.readUntypedWithBaseType                                             thrpt   10  193768718,043 ±  475103,167  ops/s

Original pull request: #2572.
Related ticket: #2312.

src/main/java/org/springframework/data/convert/ConfigurableTypeInformationMapper.java

@@ -22,7 +22,6 @@ import java.util.Map.Entry;
 import org.springframework.data.mapping.Alias;
 import org.springframework.data.mapping.PersistentEntity;
 import org.springframework.data.mapping.context.MappingContext;
-import org.springframework.data.util.ClassTypeInformation;
 import org.springframework.data.util.TypeInformation;
 import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
@@ -37,8 +36,8 @@ import org.springframework.util.Assert;
  */
 public class ConfigurableTypeInformationMapper implements TypeInformationMapper {
 
-	private final Map<ClassTypeInformation<?>, Alias> typeToAlias;
-	private final Map<Alias, ClassTypeInformation<?>> aliasToType;
+	private final Map<TypeInformation<?>, Alias> typeToAlias;
+	private final Map<Alias, TypeInformation<?>> aliasToType;
 
 	/**
 	 * Creates a new {@link ConfigurableTypeInformationMapper} for the given type map.
@@ -54,7 +53,7 @@ public class ConfigurableTypeInformationMapper implements TypeInformationMapper
 
 		for (Entry<? extends Class<?>, String> entry : sourceTypeMap.entrySet()) {
 
-			ClassTypeInformation<?> type = ClassTypeInformation.from(entry.getKey());
+			TypeInformation<?> type = TypeInformation.of(entry.getKey());
 			Alias alias = Alias.of(entry.getValue());
 
 			if (typeToAlias.containsValue(alias)) {

src/main/java/org/springframework/data/convert/DefaultTypeMapper.java

@@ -27,7 +27,6 @@ import org.springframework.beans.factory.BeanClassLoaderAware;
 import org.springframework.data.mapping.Alias;
 import org.springframework.data.mapping.PersistentEntity;
 import org.springframework.data.mapping.context.MappingContext;
-import org.springframework.data.util.ClassTypeInformation;
 import org.springframework.data.util.TypeInformation;
 import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
@@ -149,16 +148,16 @@ public class DefaultTypeMapper<S> implements TypeMapper<S>, BeanClassLoaderAware
 
 		Class<T> rawType = basicType.getType();
 
-		boolean isMoreConcreteCustomType = rawType == null
-				|| rawType.isAssignableFrom(documentsTargetType) && !rawType.equals(documentsTargetType);
+		boolean isMoreConcreteCustomType = (rawType == null)
+				|| (rawType.isAssignableFrom(documentsTargetType) && !rawType.equals(documentsTargetType));
 
 		if (!isMoreConcreteCustomType) {
 			return basicType;
 		}
 
-		ClassTypeInformation<?> targetType = ClassTypeInformation.from(documentsTargetType);
+		TypeInformation<?> targetType = TypeInformation.of(documentsTargetType);
 
-		return (TypeInformation<? extends T>) basicType.specialize(targetType);
+		return basicType.specialize(targetType);
 	}
 
 	/**
@@ -190,7 +189,7 @@ public class DefaultTypeMapper<S> implements TypeMapper<S>, BeanClassLoaderAware
 
 	@Override
 	public void writeType(Class<?> type, S dbObject) {
-		writeType(ClassTypeInformation.from(type), dbObject);
+		writeType(TypeInformation.of(type), dbObject);
 	}
 
 	@Override

src/main/java/org/springframework/data/convert/SimpleTypeInformationMapper.java

@@ -21,7 +21,6 @@ import java.util.concurrent.ConcurrentHashMap;
 
 import org.springframework.beans.factory.BeanClassLoaderAware;
 import org.springframework.data.mapping.Alias;
-import org.springframework.data.util.ClassTypeInformation;
 import org.springframework.data.util.TypeInformation;
 import org.springframework.lang.Nullable;
 import org.springframework.util.ClassUtils;
@@ -36,7 +35,7 @@ import org.springframework.util.ClassUtils;
  */
 public class SimpleTypeInformationMapper implements TypeInformationMapper, BeanClassLoaderAware {
 
-	private final Map<String, Optional<ClassTypeInformation<?>>> cache = new ConcurrentHashMap<>();
+	private final Map<String, Optional<TypeInformation<?>>> cache = new ConcurrentHashMap<>();
 
 	private @Nullable ClassLoader classLoader;
 
@@ -79,10 +78,10 @@ public class SimpleTypeInformationMapper implements TypeInformationMapper, BeanC
 		this.classLoader = classLoader;
 	}
 
-	private Optional<ClassTypeInformation<?>> loadClass(String typeName) {
+	private Optional<TypeInformation<?>> loadClass(String typeName) {
 
 		try {
-			return Optional.of(ClassTypeInformation.from(ClassUtils.forName(typeName, this.classLoader)));
+			return Optional.of(TypeInformation.of(ClassUtils.forName(typeName, this.classLoader)));
 		} catch (ClassNotFoundException e) {
 			return Optional.empty();
 		}

src/main/java/org/springframework/data/convert/ValueConversionContext.java

@@ -69,7 +69,7 @@ public interface ValueConversionContext<P extends PersistentProperty<P>> {
 	 */
 	@Nullable
 	default <T> T write(@Nullable Object value, @NonNull Class<T> target) {
-		return write(value, ClassTypeInformation.from(target));
+		return write(value, TypeInformation.of(target));
 	}
 
 	/**
@@ -119,7 +119,7 @@ public interface ValueConversionContext<P extends PersistentProperty<P>> {
 	 */
 	@Nullable
 	default <T> T read(@Nullable Object value, @NonNull Class<T> target) {
-		return read(value, ClassTypeInformation.from(target));
+		return read(value, TypeInformation.of(target));
 	}
 
 	/**

src/main/java/org/springframework/data/mapping/PropertyPath.java

@@ -68,7 +68,7 @@ public class PropertyPath implements Streamable<PropertyPath> {
 	 * @param owningType must not be {@literal null}.
 	 */
 	PropertyPath(String name, Class<?> owningType) {
-		this(name, ClassTypeInformation.from(owningType), Collections.emptyList());
+		this(name, TypeInformation.of(owningType), Collections.emptyList());
 	}
 
 	/**
@@ -315,7 +315,7 @@ public class PropertyPath implements Streamable<PropertyPath> {
 	 * @return
 	 */
 	public static PropertyPath from(String source, Class<?> type) {
-		return from(source, ClassTypeInformation.from(type));
+		return from(source, TypeInformation.of(type));
 	}
 
 	/**

src/main/java/org/springframework/data/mapping/context/AbstractMappingContext.java

@@ -189,7 +189,7 @@ public abstract class AbstractMappingContext<E extends MutablePersistentEntity<?
 
 	@Nullable
 	public E getPersistentEntity(Class<?> type) {
-		return getPersistentEntity(ClassTypeInformation.from(type));
+		return getPersistentEntity(TypeInformation.of(type));
 	}
 
 	@Override
@@ -197,7 +197,7 @@ public abstract class AbstractMappingContext<E extends MutablePersistentEntity<?
 
 		Assert.notNull(type, "Type must not be null");
 
-		TypeInformation<?> typeInformation = ClassTypeInformation.from(type);
+		TypeInformation<?> typeInformation = TypeInformation.of(type);
 
 		try {
 
@@ -312,7 +312,7 @@ public abstract class AbstractMappingContext<E extends MutablePersistentEntity<?
 	 */
 	protected final <T> PersistentPropertyPaths<T, P> doFindPersistentPropertyPaths(Class<T> type,
 			Predicate<? super P> predicate, Predicate<P> traversalGuard) {
-		return persistentPropertyPathFactory.from(ClassTypeInformation.from(type), predicate, traversalGuard);
+		return persistentPropertyPathFactory.from(TypeInformation.of(type), predicate, traversalGuard);
 	}
 
 	/**
@@ -322,7 +322,7 @@ public abstract class AbstractMappingContext<E extends MutablePersistentEntity<?
 	 * @return
 	 */
 	protected Optional<E> addPersistentEntity(Class<?> type) {
-		return addPersistentEntity(ClassTypeInformation.from(type));
+		return addPersistentEntity(TypeInformation.of(type));
 	}
 
 	/**
@@ -728,7 +728,7 @@ public abstract class AbstractMappingContext<E extends MutablePersistentEntity<?
 			 */
 			public PropertyMatch(@Nullable String namePattern, @Nullable String typeName) {
 
-				Assert.isTrue(!(namePattern == null && typeName == null), "Either name pattern or type name must be given");
+				Assert.isTrue(!((namePattern == null) && (typeName == null)), "Either name pattern or type name must be given");
 
 				this.namePattern = namePattern;
 				this.typeName = typeName;
@@ -746,11 +746,11 @@ public abstract class AbstractMappingContext<E extends MutablePersistentEntity<?
 				Assert.notNull(name, "Name must not be null");
 				Assert.notNull(type, "Type must not be null");
 
-				if (namePattern != null && !name.matches(namePattern)) {
+				if ((namePattern != null) && !name.matches(namePattern)) {
 					return false;
 				}
 
-				if (typeName != null && !type.getName().equals(typeName)) {
+				if ((typeName != null) && !type.getName().equals(typeName)) {
 					return false;
 				}
 

src/main/java/org/springframework/data/mapping/context/PersistentPropertyPathFactory.java

@@ -68,7 +68,7 @@ class PersistentPropertyPathFactory<E extends PersistentEntity<?, P>, P extends
 		Assert.notNull(type, "Type must not be null");
 		Assert.notNull(propertyPath, "Property path must not be null");
 
-		return getPersistentPropertyPath(ClassTypeInformation.from(type), propertyPath);
+		return getPersistentPropertyPath(TypeInformation.of(type), propertyPath);
 	}
 
 	/**
@@ -112,7 +112,7 @@ class PersistentPropertyPathFactory<E extends PersistentEntity<?, P>, P extends
 		Assert.notNull(type, "Type must not be null");
 		Assert.notNull(propertyFilter, "Property filter must not be null");
 
-		return from(ClassTypeInformation.from(type), propertyFilter);
+		return from(TypeInformation.of(type), propertyFilter);
 	}
 
 	/**
@@ -131,7 +131,7 @@ class PersistentPropertyPathFactory<E extends PersistentEntity<?, P>, P extends
 		Assert.notNull(propertyFilter, "Property filter must not be null");
 		Assert.notNull(traversalGuard, "Traversal guard must not be null");
 
-		return from(ClassTypeInformation.from(type), propertyFilter, traversalGuard);
+		return from(TypeInformation.of(type), propertyFilter, traversalGuard);
 	}
 
 	/**

src/main/java/org/springframework/data/mapping/model/AnnotationBasedPersistentProperty.java

@@ -88,7 +88,7 @@ public abstract class AnnotationBasedPersistentProperty<P extends PersistentProp
 		return Optional.of(Reference.class) //
 				.map(this::findAnnotation) //
 				.map(Reference::to) //
-				.map(it -> !Class.class.equals(it) ? ClassTypeInformation.from(it) : getActualTypeInformation()) //
+				.map(it -> !Class.class.equals(it) ? TypeInformation.of(it) : getActualTypeInformation()) //
 				.orElseGet(() -> super.getAssociationTargetTypeInformation());
 	});
 

src/main/java/org/springframework/data/mapping/model/PreferredConstructorDiscoverer.java

@@ -63,7 +63,7 @@ public interface PreferredConstructorDiscoverer<T, P extends PersistentProperty<
 		Assert.notNull(type, "Type must not be null");
 
 		return Discoverers.findDiscoverer(type) //
-				.discover(ClassTypeInformation.from(type), null);
+				.discover(TypeInformation.of(type), null);
 	}
 
 	/**

src/main/java/org/springframework/data/projection/EntityProjection.java

@@ -24,7 +24,6 @@ import java.util.Map;
 import java.util.function.Consumer;
 
 import org.springframework.data.mapping.PropertyPath;
-import org.springframework.data.util.ClassTypeInformation;
 import org.springframework.data.util.Streamable;
 import org.springframework.data.util.TypeInformation;
 import org.springframework.lang.Nullable;
@@ -37,6 +36,7 @@ import org.springframework.lang.Nullable;
  * @param <D> the domain type.
  * @author Mark Paluch
  * @author Christoph Strobl
+ * @author Oliver Drotbohm
  * @since 2.7
  */
 public class EntityProjection<M, D> implements Streamable<EntityProjection.PropertyProjection<?, ?>> {
@@ -90,7 +90,9 @@ public class EntityProjection<M, D> implements Streamable<EntityProjection.Prope
 	 * @return new instance of {@link EntityProjection}.
 	 */
 	public static <T> EntityProjection<T, T> nonProjecting(Class<T> type) {
-		ClassTypeInformation<T> typeInformation = ClassTypeInformation.from(type);
+
+		TypeInformation<T> typeInformation = TypeInformation.of(type);
+
 		return new EntityProjection<>(typeInformation, typeInformation, Collections.emptyList(), false,
 				ProjectionType.CLOSED);
 	}

src/main/java/org/springframework/data/projection/EntityProjectionIntrospector.java

@@ -25,9 +25,8 @@ import java.util.Set;
 import org.springframework.data.mapping.PersistentEntity;
 import org.springframework.data.mapping.PersistentProperty;
 import org.springframework.data.mapping.PropertyPath;
-import org.springframework.data.projection.EntityProjection.ProjectionType;
 import org.springframework.data.mapping.context.MappingContext;
-import org.springframework.data.util.ClassTypeInformation;
+import org.springframework.data.projection.EntityProjection.ProjectionType;
 import org.springframework.data.util.TypeInformation;
 import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
@@ -39,6 +38,7 @@ import org.springframework.util.Assert;
  * @author Gerrit Meier
  * @author Mark Paluch
  * @author Christoph Strobl
+ * @author Oliver Drotbohm
  * @since 2.7
  */
 public class EntityProjectionIntrospector {
@@ -91,8 +91,8 @@ public class EntityProjectionIntrospector {
 	 */
 	public <M, D> EntityProjection<M, D> introspect(Class<M> mappedType, Class<D> domainType) {
 
-		ClassTypeInformation<M> returnedTypeInformation = ClassTypeInformation.from(mappedType);
-		ClassTypeInformation<D> domainTypeInformation = ClassTypeInformation.from(domainType);
+		TypeInformation<M> returnedTypeInformation = TypeInformation.of(mappedType);
+		TypeInformation<D> domainTypeInformation = TypeInformation.of(domainType);
 
 		boolean isProjection = projectionPredicate.test(mappedType, domainType);
 
@@ -111,7 +111,8 @@ public class EntityProjectionIntrospector {
 		List<EntityProjection.PropertyProjection<?, ?>> propertyDescriptors = getProperties(null, projectionInformation,
 				returnedTypeInformation, persistentEntity, null);
 
-		return EntityProjection.projecting(returnedTypeInformation, domainTypeInformation, propertyDescriptors, ProjectionType.CLOSED);
+		return EntityProjection.projecting(returnedTypeInformation, domainTypeInformation, propertyDescriptors,
+				ProjectionType.CLOSED);
 	}
 
 	private List<EntityProjection.PropertyProjection<?, ?>> getProperties(@Nullable PropertyPath propertyPath,
@@ -157,10 +158,12 @@ public class EntityProjectionIntrospector {
 
 				if (container) {
 					propertyDescriptors.add(EntityProjection.ContainerPropertyProjection.projecting(nestedPropertyPath, property,
-							persistentProperty.getTypeInformation(), nestedPropertyDescriptors, ProjectionType.from(projectionInformation)));
+							persistentProperty.getTypeInformation(), nestedPropertyDescriptors,
+							ProjectionType.from(projectionInformation)));
 				} else {
 					propertyDescriptors.add(EntityProjection.PropertyProjection.projecting(nestedPropertyPath, property,
-							persistentProperty.getTypeInformation(), nestedPropertyDescriptors, ProjectionType.from(projectionInformation)));
+							persistentProperty.getTypeInformation(), nestedPropertyDescriptors,
+							ProjectionType.from(projectionInformation)));
 				}
 
 			} else {

src/main/java/org/springframework/data/projection/ProjectingMethodInterceptor.java

@@ -25,10 +25,8 @@ import java.util.Map.Entry;
 
 import org.aopalliance.intercept.MethodInterceptor;
 import org.aopalliance.intercept.MethodInvocation;
-
 import org.springframework.core.CollectionFactory;
 import org.springframework.core.convert.ConversionService;
-import org.springframework.data.util.ClassTypeInformation;
 import org.springframework.data.util.NullableWrapper;
 import org.springframework.data.util.NullableWrapperConverters;
 import org.springframework.data.util.TypeInformation;
@@ -66,7 +64,7 @@ class ProjectingMethodInterceptor implements MethodInterceptor {
 	@Override
 	public Object invoke(@SuppressWarnings("null") @NonNull MethodInvocation invocation) throws Throwable {
 
-		TypeInformation<?> type = ClassTypeInformation.fromReturnTypeOf(invocation.getMethod());
+		TypeInformation<?> type = TypeInformation.fromReturnTypeOf(invocation.getMethod());
 		TypeInformation<?> resultType = type;
 		TypeInformation<?> typeToReturn = type;
 
@@ -74,7 +72,7 @@ class ProjectingMethodInterceptor implements MethodInterceptor {
 		boolean applyWrapper = false;
 
 		if (NullableWrapperConverters.supports(type.getType())
-				&& (result == null || !NullableWrapperConverters.supports(result.getClass()))) {
+				&& ((result == null) || !NullableWrapperConverters.supports(result.getClass()))) {
 			resultType = NullableWrapperConverters.unwrapActualType(typeToReturn);
 			applyWrapper = true;
 		}
@@ -161,7 +159,7 @@ class ProjectingMethodInterceptor implements MethodInterceptor {
 
 	@Nullable
 	private Object getProjection(@Nullable Object result, Class<?> returnType) {
-		return result == null || ClassUtils.isAssignable(returnType, result.getClass()) ? result
+		return (result == null) || ClassUtils.isAssignable(returnType, result.getClass()) ? result
 				: factory.createProjection(returnType, result);
 	}
 

src/main/java/org/springframework/data/querydsl/binding/QuerydslBindings.java

@@ -25,7 +25,6 @@ import java.util.Set;
 
 import org.springframework.data.mapping.PropertyPath;
 import org.springframework.data.mapping.PropertyReferenceException;
-import org.springframework.data.util.ClassTypeInformation;
 import org.springframework.data.util.Optionals;
 import org.springframework.data.util.TypeInformation;
 import org.springframework.lang.Nullable;
@@ -175,7 +174,7 @@ public class QuerydslBindings {
 		Assert.notNull(path, "Path must not be null");
 		Assert.notNull(type, "Type must not be null");
 
-		return isPathAvailable(path, ClassTypeInformation.from(type));
+		return isPathAvailable(path, TypeInformation.of(type));
 	}
 
 	/**
@@ -573,7 +572,7 @@ public class QuerydslBindings {
 		}
 
 		@Override
-		public boolean equals(Object o) {
+		public boolean equals(@Nullable Object o) {
 			if (this == o) {
 				return true;
 			}
@@ -589,7 +588,7 @@ public class QuerydslBindings {
 		@Override
 		public int hashCode() {
 			int result = ObjectUtils.nullSafeHashCode(path);
-			result = 31 * result + ObjectUtils.nullSafeHashCode(binding);
+			result = (31 * result) + ObjectUtils.nullSafeHashCode(binding);
 			return result;
 		}
 

src/main/java/org/springframework/data/repository/core/support/AbstractRepositoryMetadata.java

@@ -29,7 +29,6 @@ import org.springframework.data.repository.core.RepositoryMetadata;
 import org.springframework.data.repository.util.QueryExecutionConverters;
 import org.springframework.data.repository.util.ReactiveWrapperConverters;
 import org.springframework.data.repository.util.ReactiveWrappers;
-import org.springframework.data.util.ClassTypeInformation;
 import org.springframework.data.util.KotlinReflectionUtils;
 import org.springframework.data.util.Lazy;
 import org.springframework.data.util.TypeInformation;
@@ -60,7 +59,7 @@ public abstract class AbstractRepositoryMetadata implements RepositoryMetadata {
 		Assert.isTrue(repositoryInterface.isInterface(), "Given type must be an interface");
 
 		this.repositoryInterface = repositoryInterface;
-		this.typeInformation = ClassTypeInformation.from(repositoryInterface);
+		this.typeInformation = TypeInformation.of(repositoryInterface);
 		this.crudMethods = Lazy.of(() -> new DefaultCrudMethods(this));
 	}
 

src/main/java/org/springframework/data/repository/core/support/AnnotationRepositoryMetadata.java

@@ -20,7 +20,6 @@ import java.util.function.Function;
 import org.springframework.core.annotation.AnnotationUtils;
 import org.springframework.data.repository.RepositoryDefinition;
 import org.springframework.data.repository.core.RepositoryMetadata;
-import org.springframework.data.util.ClassTypeInformation;
 import org.springframework.data.util.TypeInformation;
 import org.springframework.util.Assert;
 
@@ -78,6 +77,6 @@ public class AnnotationRepositoryMetadata extends AbstractRepositoryMetadata {
 			throw new IllegalArgumentException(String.format("Could not resolve domain type of %s", repositoryInterface));
 		}
 
-		return ClassTypeInformation.from(extractor.apply(annotation));
+		return TypeInformation.of(extractor.apply(annotation));
 	}
 }

src/main/java/org/springframework/data/repository/core/support/DefaultRepositoryMetadata.java

@@ -20,7 +20,6 @@ import java.util.function.Supplier;
 
 import org.springframework.data.repository.Repository;
 import org.springframework.data.repository.core.RepositoryMetadata;
-import org.springframework.data.util.ClassTypeInformation;
 import org.springframework.data.util.TypeInformation;
 import org.springframework.util.Assert;
 
@@ -50,7 +49,7 @@ public class DefaultRepositoryMetadata extends AbstractRepositoryMetadata {
 		super(repositoryInterface);
 		Assert.isTrue(Repository.class.isAssignableFrom(repositoryInterface), MUST_BE_A_REPOSITORY);
 
-		List<TypeInformation<?>> arguments = ClassTypeInformation.from(repositoryInterface)//
+		List<TypeInformation<?>> arguments = TypeInformation.of(repositoryInterface)//
 				.getRequiredSuperTypeInformation(Repository.class)//
 				.getTypeArguments();
 

src/main/java/org/springframework/data/repository/core/support/MethodInvocationValidator.java

@@ -21,7 +21,6 @@ import java.util.Map;
 
 import org.aopalliance.intercept.MethodInterceptor;
 import org.aopalliance.intercept.MethodInvocation;
-
 import org.springframework.core.DefaultParameterNameDiscoverer;
 import org.springframework.core.MethodParameter;
 import org.springframework.core.ParameterNameDiscoverer;
@@ -85,7 +84,7 @@ public class MethodInvocationValidator implements MethodInterceptor {
 				continue;
 			}
 
-			if (arguments.length < i || arguments[i] == null) {
+			if ((arguments.length < i) || (arguments[i] == null)) {
 				throw new IllegalArgumentException(
 						String.format("Parameter %s in %s.%s must not be null", nullability.getMethodParameterName(i),
 								ClassUtils.getShortName(method.getDeclaringClass()), method.getName()));
@@ -94,7 +93,7 @@ public class MethodInvocationValidator implements MethodInterceptor {
 
 		Object result = invocation.proceed();
 
-		if (result == null && !nullability.isNullableReturn()) {
+		if ((result == null) && !nullability.isNullableReturn()) {
 			throw new EmptyResultDataAccessException("Result must not be null", 1);
 		}
 
@@ -170,7 +169,7 @@ public class MethodInvocationValidator implements MethodInterceptor {
 		}
 
 		@Override
-		public boolean equals(Object o) {
+		public boolean equals(@Nullable Object o) {
 
 			if (this == o) {
 				return true;
@@ -194,8 +193,8 @@ public class MethodInvocationValidator implements MethodInterceptor {
 		@Override
 		public int hashCode() {
 			int result = (nullableReturn ? 1 : 0);
-			result = 31 * result + ObjectUtils.nullSafeHashCode(nullableParameters);
-			result = 31 * result + ObjectUtils.nullSafeHashCode(methodParameters);
+			result = (31 * result) + ObjectUtils.nullSafeHashCode(nullableParameters);
+			result = (31 * result) + ObjectUtils.nullSafeHashCode(methodParameters);
 			return result;
 		}
 

src/main/java/org/springframework/data/repository/core/support/MethodLookup.java

@@ -21,6 +21,7 @@ import java.util.function.BiPredicate;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
+import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
 import org.springframework.util.ObjectUtils;
 
@@ -75,8 +76,7 @@ public interface MethodLookup {
 	/**
 	 * Value object representing an invoked {@link Method}.
 	 */
-	final
-	class InvokedMethod {
+	final class InvokedMethod {
 
 		private final Method method;
 
@@ -109,7 +109,7 @@ public interface MethodLookup {
 		}
 
 		@Override
-		public boolean equals(Object o) {
+		public boolean equals(@Nullable Object o) {
 
 			if (this == o) {
 				return true;

src/main/java/org/springframework/data/repository/core/support/MethodLookups.java

@@ -37,6 +37,7 @@ import org.springframework.data.repository.core.support.MethodLookup.MethodPredi
 import org.springframework.data.repository.util.QueryExecutionConverters;
 import org.springframework.data.repository.util.ReactiveWrapperConverters;
 import org.springframework.data.repository.util.ReactiveWrappers;
+import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
 import org.springframework.util.ObjectUtils;
 
@@ -58,7 +59,7 @@ interface MethodLookups {
 	static MethodLookup direct() {
 
 		MethodPredicate direct = (MethodPredicate) (invoked, candidate) -> candidate.getName().equals(invoked.getName())
-				&& candidate.getParameterCount() == invoked.getParameterCount()
+				&& (candidate.getParameterCount() == invoked.getParameterCount())
 				&& Arrays.equals(candidate.getParameterTypes(), invoked.getParameterTypes());
 
 		return () -> Collections.singletonList(direct);
@@ -248,8 +249,8 @@ interface MethodLookups {
 
 			MethodPredicate detailedComparison = (MethodPredicate) (invokedMethod,
 					candidate) -> getMethodCandidate(invokedMethod,
-					candidate,
-					matchParameterOrComponentType(repositoryMetadata.getRepositoryInterface())).isPresent();
+							candidate,
+							matchParameterOrComponentType(repositoryMetadata.getRepositoryInterface())).isPresent();
 
 			return Arrays.asList(convertibleComparison, detailedComparison);
 		}
@@ -434,7 +435,7 @@ interface MethodLookups {
 			}
 
 			@Override
-			public boolean equals(Object o) {
+			public boolean equals(@Nullable Object o) {
 
 				if (this == o) {
 					return true;
@@ -454,7 +455,7 @@ interface MethodLookups {
 			@Override
 			public int hashCode() {
 				int result = ObjectUtils.nullSafeHashCode(declared);
-				result = 31 * result + ObjectUtils.nullSafeHashCode(base);
+				result = (31 * result) + ObjectUtils.nullSafeHashCode(base);
 				return result;
 			}
 

src/main/java/org/springframework/data/repository/core/support/RepositoryComposition.java

@@ -81,7 +81,7 @@ public class RepositoryComposition {
 
 				Class<?> parameterType = parameterTypes.length > i ? parameterTypes[i] : null;
 
-				if (value != null && parameterType != null) {
+				if ((value != null) && (parameterType != null)) {
 					if (!parameterType.isAssignableFrom(value.getClass())
 							&& ReactiveWrapperConverters.canConvert(value.getClass(), parameterType)) {
 
@@ -558,7 +558,7 @@ public class RepositoryComposition {
 		}
 
 		@Override
-		public boolean equals(Object o) {
+		public boolean equals(@Nullable Object o) {
 
 			if (this == o) {
 				return true;
@@ -582,8 +582,8 @@ public class RepositoryComposition {
 		@Override
 		public int hashCode() {
 			int result = ObjectUtils.nullSafeHashCode(fragmentCache);
-			result = 31 * result + ObjectUtils.nullSafeHashCode(invocationMetadataCache);
-			result = 31 * result + ObjectUtils.nullSafeHashCode(fragments);
+			result = (31 * result) + ObjectUtils.nullSafeHashCode(invocationMetadataCache);
+			result = (31 * result) + ObjectUtils.nullSafeHashCode(fragments);
 			return result;
 		}
 	}

src/main/java/org/springframework/data/repository/query/Parameter.java

@@ -17,7 +17,6 @@ package org.springframework.data.repository.query;
 
 import static java.lang.String.*;
 
-import java.lang.reflect.Method;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
@@ -32,10 +31,8 @@ import org.springframework.data.domain.Sort;
 import org.springframework.data.repository.util.ClassUtils;
 import org.springframework.data.repository.util.QueryExecutionConverters;
 import org.springframework.data.repository.util.ReactiveWrapperConverters;
-import org.springframework.data.util.ClassTypeInformation;
 import org.springframework.data.util.Lazy;
 import org.springframework.data.util.TypeInformation;
-import org.springframework.data.util.TypeDiscoverer;
 import org.springframework.util.Assert;
 
 /**
@@ -218,7 +215,9 @@ public class Parameter {
 		}
 
 		ResolvableType returnType = ResolvableType.forMethodReturnType(parameter.getMethod());
-		if(new TypeDiscoverer(returnType).isCollectionLike() || org.springframework.util.ClassUtils.isAssignable(Stream.class, returnType.toClass())) {
+
+		if (TypeInformation.of(returnType).isCollectionLike()
+				|| org.springframework.util.ClassUtils.isAssignable(Stream.class, returnType.toClass())) {
 			returnType = returnType.getGeneric(0);
 		}
 

src/main/java/org/springframework/data/repository/query/QueryMethod.java

@@ -30,7 +30,6 @@ import org.springframework.data.repository.core.EntityMetadata;
 import org.springframework.data.repository.core.RepositoryMetadata;
 import org.springframework.data.repository.util.QueryExecutionConverters;
 import org.springframework.data.repository.util.ReactiveWrapperConverters;
-import org.springframework.data.util.ClassTypeInformation;
 import org.springframework.data.util.Lazy;
 import org.springframework.data.util.TypeInformation;
 import org.springframework.util.Assert;
@@ -108,7 +107,7 @@ public class QueryMethod {
 			Class<?> repositoryDomainClass = metadata.getDomainType();
 			Class<?> methodDomainClass = metadata.getReturnedDomainClass(method);
 
-			return repositoryDomainClass == null || repositoryDomainClass.isAssignableFrom(methodDomainClass)
+			return (repositoryDomainClass == null) || repositoryDomainClass.isAssignableFrom(methodDomainClass)
 					? methodDomainClass
 					: repositoryDomainClass;
 		});
@@ -271,7 +270,7 @@ public class QueryMethod {
 			return !QueryExecutionConverters.isSingleValue(unwrappedReturnType);
 		}
 
-		return ClassTypeInformation.from(unwrappedReturnType).isCollectionLike();
+		return TypeInformation.of(unwrappedReturnType).isCollectionLike();
 	}
 
 	private static Class<? extends Object> potentiallyUnwrapReturnTypeFor(RepositoryMetadata metadata, Method method) {
@@ -301,7 +300,7 @@ public class QueryMethod {
 		Assert.notEmpty(types, "Types must not be null or empty");
 
 		// TODO: to resolve generics fully we'd need the actual repository interface here
-		TypeInformation<?> returnType = ClassTypeInformation.fromReturnTypeOf(method);
+		TypeInformation<?> returnType = TypeInformation.fromReturnTypeOf(method);
 
 		returnType = QueryExecutionConverters.isSingleValue(returnType.getType()) //
 				? returnType.getRequiredComponentType() //

src/main/java/org/springframework/data/repository/util/ClassUtils.java

@@ -22,7 +22,6 @@ import java.util.Collection;
 import java.util.function.Consumer;
 
 import org.springframework.data.repository.Repository;
-import org.springframework.data.util.ClassTypeInformation;
 import org.springframework.data.util.TypeInformation;
 import org.springframework.lang.NonNull;
 import org.springframework.lang.Nullable;
@@ -114,13 +113,13 @@ public abstract class ClassUtils {
 	}
 
 	/**
-	 * Returns the number of occurrences for the given {@link Method#getParameterTypes() parameter type}
-	 * in the given {@link Method}.
+	 * Returns the number of occurrences for the given {@link Method#getParameterTypes() parameter type} in the given
+	 * {@link Method}.
 	 *
 	 * @param method {@link Method} to evaluate.
 	 * @param parameterType {@link Class} of the {@link Method} parameter type to count.
-	 * @return the number of occurrences for the given {@link Method#getParameterTypes() parameter type}
-	 * in the given {@link Method}.
+	 * @return the number of occurrences for the given {@link Method#getParameterTypes() parameter type} in the given
+	 *         {@link Method}.
 	 * @see java.lang.reflect.Method#getParameterTypes()
 	 */
 	public static int getNumberOfOccurrences(@NonNull Method method, @NonNull Class<?> parameterType) {
@@ -195,9 +194,11 @@ public abstract class ClassUtils {
 	// TODO: we should also consider having the owning type here so we can resolve generics better.
 	private static TypeInformation<?> getEffectivelyReturnedTypeFrom(Method method) {
 
-		TypeInformation<?> returnType = ClassTypeInformation.fromReturnTypeOf(method);
-		return QueryExecutionConverters.supports(returnType.getType())
-				|| ReactiveWrapperConverters.supports(returnType.getType()) ? returnType.getRequiredComponentType()
+		TypeInformation<?> returnType = TypeInformation.fromReturnTypeOf(method);
+
+		return QueryExecutionConverters.supports(returnType.getType()) //
+				|| ReactiveWrapperConverters.supports(returnType.getType()) //
+						? returnType.getRequiredComponentType() //
 						: returnType;
 	}
 }

src/main/java/org/springframework/data/util/ClassTypeInformation.java

@@ -16,45 +16,85 @@
 package org.springframework.data.util;
 
 import java.lang.reflect.Method;
-import java.util.Arrays;
 import java.util.Collection;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
 
-import org.springframework.core.convert.TypeDescriptor;
 import org.springframework.core.ResolvableType;
 import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
-import org.springframework.util.ConcurrentReferenceHashMap;
-import org.springframework.util.ConcurrentReferenceHashMap.ReferenceType;
+import org.springframework.util.ConcurrentLruCache;
 
 /**
  * {@link TypeInformation} for a plain {@link Class}.
  *
  * @author Oliver Gierke
  * @author Christoph Strobl
+ * @deprecated since 3.0 to go package protected at some point. Refer to {@link TypeInformation} only.
  */
+@Deprecated
+@SuppressWarnings({ "rawtypes", "unchecked" })
 public class ClassTypeInformation<S> extends TypeDiscoverer<S> {
 
-	public static final ClassTypeInformation<Collection> COLLECTION = new ClassTypeInformation(Collection.class);
-	public static final ClassTypeInformation<List> LIST = new ClassTypeInformation(List.class);
-	public static final ClassTypeInformation<Set> SET = new ClassTypeInformation(Set.class);
-	public static final ClassTypeInformation<Map> MAP = new ClassTypeInformation(Map.class);
-	public static final ClassTypeInformation<Object> OBJECT = new ClassTypeInformation(Object.class);
+	private static final ConcurrentLruCache<ResolvableType, ClassTypeInformation<?>> cache = new ConcurrentLruCache<>(64,
+			ClassTypeInformation::new);
 
-	private static final Map<Class<?>, ClassTypeInformation<?>> cache = new ConcurrentReferenceHashMap<>(64,
-			ReferenceType.WEAK);
+	@Deprecated public static final ClassTypeInformation<Collection> COLLECTION;
+	@Deprecated public static final ClassTypeInformation<List> LIST;
+	@Deprecated public static final ClassTypeInformation<Set> SET;
+	@Deprecated public static final ClassTypeInformation<Map> MAP;
+	@Deprecated public static final ClassTypeInformation<Object> OBJECT;
+
+	static {
+
+		OBJECT = (ClassTypeInformation<Object>) cache.get(ResolvableType.forClass(Object.class));
+		COLLECTION = (ClassTypeInformation<Collection>) cache.get(ResolvableType.forClass(Collection.class));
+		LIST = (ClassTypeInformation<List>) cache.get(ResolvableType.forClass(List.class));
+		SET = (ClassTypeInformation<Set>) cache.get(ResolvableType.forClass(Set.class));
+		MAP = (ClassTypeInformation<Map>) cache.get(ResolvableType.forClass(Map.class));
+	}
+
+	private final Class<S> type;
+
+	ClassTypeInformation(ResolvableType type) {
+		super(type);
+		this.type = (Class<S>) type.resolve(Object.class);
+	}
+
+	private ClassTypeInformation(Class<S> type) {
+		super(ResolvableType.forClass(type));
+		this.type = type;
+	}
+
+	/**
+	 * @param <S>
+	 * @param type
+	 * @return
+	 * @deprecated since 3.0. Use {@link TypeInformation#of} instead.
+	 */
+	@Deprecated
+	public static <S> ClassTypeInformation<S> from(Class<S> type) {
+		return cti(ResolvableType.forClass(type));
+	}
+
+	static <S> ClassTypeInformation<S> cti(ResolvableType type) {
+
+		Assert.notNull(type, "Type must not be null");
+
+		return (ClassTypeInformation<S>) cache.get(type);
+	}
 
 	/**
 	 * Warning: Does not fully resolve generic arguments.
+	 *
 	 * @param method
 	 * @return
-	 * @deprecated since 3.0 Use {@link #fromReturnTypeOf(Method, Class)} instead.
+	 * @deprecated since 3.0. Use {@link TypeInformation#fromReturnTypeOf(Method)} instead.
 	 */
 	@Deprecated
-	public static TypeInformation<?> fromReturnTypeOf(Method method) {
-		return new TypeDiscoverer<>(ResolvableType.forMethodReturnType(method));
+	public static <S> TypeInformation<S> fromReturnTypeOf(Method method) {
+		return (TypeInformation<S>) TypeInformation.of(ResolvableType.forMethodReturnType(method));
 	}
 
 	/**
@@ -62,35 +102,18 @@ public class ClassTypeInformation<S> extends TypeDiscoverer<S> {
 	 * @param actualType can be {@literal null}.
 	 * @return
 	 */
-	public static TypeInformation<?> fromReturnTypeOf(Method method, @Nullable Class<?> actualType) {
-
-		if(actualType == null) {
-			return new TypeDiscoverer<>(ResolvableType.forMethodReturnType(method));
-		}
-		return new TypeDiscoverer<>(ResolvableType.forMethodReturnType(method, actualType));
-	}
+	static TypeInformation<?> fromReturnTypeOf(Method method, @Nullable Class<?> actualType) {
 
-	Class<?> type;
+		var type = actualType == null
+				? ResolvableType.forMethodReturnType(method)
+				: ResolvableType.forMethodReturnType(method, actualType);
 
-	static {
-		Arrays.asList(COLLECTION, LIST, SET, MAP, OBJECT).forEach(it -> cache.put(it.getType(), it));
-	}
-
-	public static <S> ClassTypeInformation<S> from(Class<S> type) {
-
-		Assert.notNull(type, "Type must not be null");
-
-		return (ClassTypeInformation<S>) cache.computeIfAbsent(type, ClassTypeInformation::new);
-	}
-
-	ClassTypeInformation(Class<S> type) {
-		super(ResolvableType.forClass(type));
-		this.type = type;
+		return TypeInformation.of(type);
 	}
 
 	@Override
 	public Class<S> getType() {
-		return (Class<S>) type;
+		return type;
 	}
 
 	@Override
@@ -104,7 +127,7 @@ public class ClassTypeInformation<S> extends TypeDiscoverer<S> {
 	}
 
 	@Override
-	public TypeInformation<? extends S> specialize(ClassTypeInformation<?> type) {
+	public TypeInformation<? extends S> specialize(TypeInformation<?> type) {
 		return (TypeInformation<? extends S>) type;
 	}
 
@@ -112,9 +135,4 @@ public class ClassTypeInformation<S> extends TypeDiscoverer<S> {
 	public String toString() {
 		return type.getName();
 	}
-
-	@Override
-	public boolean equals(Object o) {
-		return super.equals(o);
-	}
 }

src/main/java/org/springframework/data/util/TypeDiscoverer.java

@@ -22,11 +22,9 @@ import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.Collections;
-import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Optional;
-import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.stream.Collectors;
 
@@ -37,6 +35,7 @@ import org.springframework.core.convert.TypeDescriptor;
 import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
 import org.springframework.util.ClassUtils;
+import org.springframework.util.ConcurrentLruCache;
 import org.springframework.util.ObjectUtils;
 import org.springframework.util.ReflectionUtils;
 
@@ -49,55 +48,36 @@ import org.springframework.util.ReflectionUtils;
  * @author Jürgen Diez
  * @author Alessandro Nistico
  * @author Johannes Englmeier
+ * @deprecated since 3.0 to go package protected at some point. Prefer to refer to {@link TypeInformation} instead.
  */
-public class TypeDiscoverer<S> implements TypeInformation<S> {
+@Deprecated
+class TypeDiscoverer<S> implements TypeInformation<S> {
 
-	protected static final Class<?>[] MAP_TYPES;
-	private static final Class<?>[] COLLECTION_TYPES;
-
-	static {
-
-		var classLoader = TypeDiscoverer.class.getClassLoader();
-
-		Set<Class<?>> mapTypes = new HashSet<>();
-		mapTypes.add(Map.class);
-
-		try {
-			mapTypes.add(ClassUtils.forName("io.vavr.collection.Map", classLoader));
-		} catch (ClassNotFoundException o_O) {}
-
-		MAP_TYPES = mapTypes.toArray(new Class[0]);
-
-		Set<Class<?>> collectionTypes = new HashSet<>();
-		collectionTypes.add(Collection.class);
-
-		try {
-			collectionTypes.add(ClassUtils.forName("io.vavr.collection.Seq", classLoader));
-		} catch (ClassNotFoundException o_O) {}
-
-		try {
-			collectionTypes.add(ClassUtils.forName("io.vavr.collection.Set", classLoader));
-		} catch (ClassNotFoundException o_O) {}
-
-		COLLECTION_TYPES = collectionTypes.toArray(new Class[0]);
-	}
-
-	ResolvableType resolvableType;
-	private Map<String, Optional<TypeInformation<?>>> fields = new ConcurrentHashMap<>();
+	private static final ConcurrentLruCache<ResolvableType, TypeInformation<?>> CACHE = new ConcurrentLruCache<>(64,
+			TypeDiscoverer::new);
 
+	private final ResolvableType resolvableType;
+	private final Map<String, Optional<TypeInformation<?>>> fields = new ConcurrentHashMap<>();
 	private final Lazy<TypeInformation<?>> componentType;
 	private final Lazy<TypeInformation<?>> valueType;
+	private final Map<Constructor<?>, List<TypeInformation<?>>> constructorParameters = new ConcurrentHashMap<>();
+	private final Lazy<List<TypeInformation<?>>> typeArguments;
 
-	public TypeDiscoverer(Class<?> type) {
-		this(ResolvableType.forClass(type));
-	}
-
-	public TypeDiscoverer(ResolvableType type) {
+	protected TypeDiscoverer(ResolvableType type) {
 
 		Assert.notNull(type, "Type must not be null");
+
 		this.resolvableType = type;
 		this.componentType = Lazy.of(this::doGetComponentType);
 		this.valueType = Lazy.of(this::doGetMapValueType);
+		this.typeArguments = Lazy.of(this::doGetTypeArguments);
+	}
+
+	static TypeDiscoverer<?> td(ResolvableType type) {
+
+		Assert.notNull(type, "Type must not be null");
+
+		return (TypeDiscoverer<?>) CACHE.get(type);
 	}
 
 	@Override
@@ -105,16 +85,16 @@ public class TypeDiscoverer<S> implements TypeInformation<S> {
 
 		Assert.notNull(constructor, "Constructor must not be null");
 
-		List<TypeInformation<?>> target = new ArrayList<>();
-		for (int i = 0; i < constructor.getParameterCount(); i++) {
-			target.add(new TypeDiscoverer<>(ResolvableType.forConstructorParameter(constructor, i)));
-		}
-		return target;
-	}
+		return constructorParameters.computeIfAbsent(constructor, it -> {
 
-	@Override
-	public TypeDescriptor toTypeDescriptor() {
-		return new TypeDescriptor(resolvableType, null, null);
+			List<TypeInformation<?>> target = new ArrayList<>();
+
+			for (int i = 0; i < it.getParameterCount(); i++) {
+				target.add(TypeInformation.of(ResolvableType.forConstructorParameter(it, i)));
+			}
+
+			return target;
+		});
 	}
 
 	@Nullable
@@ -137,56 +117,11 @@ public class TypeDiscoverer<S> implements TypeInformation<S> {
 		return info.getProperty(name.substring(separatorIndex + 1));
 	}
 
-	private Optional<TypeInformation<?>> getPropertyInformation(String fieldname) {
-
-		Class<?> rawType = resolvableType.toClass();
-		var field = ReflectionUtils.findField(rawType, fieldname);
-
-		if (field != null) {
-			return Optional.of(new TypeDiscoverer(ResolvableType.forField(field, resolvableType)));
-		}
-
-		return findPropertyDescriptor(rawType, fieldname).map(it -> {
-
-			if (it.getReadMethod() != null) {
-				return new TypeDiscoverer(ResolvableType.forMethodReturnType(it.getReadMethod(), rawType));
-			}
-			if (it.getWriteMethod() != null) {
-				return new TypeDiscoverer(ResolvableType.forMethodParameter(it.getWriteMethod(), 0, rawType));
-			}
-
-			return new TypeDiscoverer(ResolvableType.forType(it.getPropertyType(), resolvableType));
-		});
-	}
-
-	private Optional<PropertyDescriptor> findPropertyDescriptor(Class<?> type, String fieldname) {
-
-		PropertyDescriptor descriptor = BeanUtils.getPropertyDescriptor(type, fieldname);
-
-		if (descriptor != null) {
-			return Optional.of(descriptor);
-		}
-
-		List<Class<?>> superTypes = new ArrayList<>();
-		superTypes.addAll(Arrays.asList(type.getInterfaces()));
-		superTypes.add(type.getSuperclass());
-
-		return Streamable.of(type.getInterfaces()).stream()//
-				.flatMap(it -> Optionals.toStream(findPropertyDescriptor(it, fieldname)))//
-				.findFirst();
-	}
-
 	@Override
 	public boolean isCollectionLike() {
 
 		Class<S> type = getType();
 
-		for (Class<?> collectionType : COLLECTION_TYPES) {
-			if (collectionType.isAssignableFrom(type)) {
-				return true;
-			}
-		}
-
 		return type.isArray() //
 				|| Iterable.class.equals(type) //
 				|| Collection.class.isAssignableFrom(type) //
@@ -203,66 +138,27 @@ public class TypeDiscoverer<S> implements TypeInformation<S> {
 	@Nullable
 	protected TypeInformation<?> doGetComponentType() {
 
-		var rawType = getType();
-
-		if (rawType.isArray()) {
-			return new TypeDiscoverer<>(resolvableType.getComponentType());
+		if (resolvableType.isArray()) {
+			return TypeInformation.of(resolvableType.getComponentType());
 		}
 
-		if (isMap()) {
-			if (ClassUtils.isAssignable(Map.class, rawType)) {
-				ResolvableType mapValueType = resolvableType.asMap().getGeneric(0);
-				if (ResolvableType.NONE.equals(mapValueType)) {
-					return null;
-				}
+		Class<S> rawType = getType();
 
-				return mapValueType != null ? new TypeDiscoverer(mapValueType) : new ClassTypeInformation<>(Object.class);
-			}
-			if (resolvableType.hasGenerics()) {
-				ResolvableType mapValueType = resolvableType.getGeneric(0);
-				return mapValueType != null ? new TypeDiscoverer(mapValueType) : new ClassTypeInformation<>(Object.class);
-			}
-			return Arrays.stream(resolvableType.getInterfaces()).filter(ResolvableType::hasGenerics)
-					.findFirst()
-					.map(it -> it.getGeneric(0))
-					.map(TypeDiscoverer::new)
-					.orElse(null);
+		if (isMap()) {
+			return getTypeArgument(CustomCollections.getMapBaseType(rawType), 0);
 		}
 
 		if (Iterable.class.isAssignableFrom(rawType)) {
-
-			ResolvableType iterableType = resolvableType.as(Iterable.class);
-			ResolvableType mapValueType = iterableType.getGeneric(0);
-			if (ResolvableType.NONE.equals(mapValueType)) {
-				return null;
-			}
-
-			if (resolvableType.hasGenerics()) {
-				mapValueType = resolvableType.getGeneric(0);
-				return mapValueType != null ? new TypeDiscoverer(mapValueType) : new ClassTypeInformation<>(Object.class);
-			}
-
-			return mapValueType.resolve() != null ? new TypeDiscoverer<>(mapValueType) : null;
+			return getTypeArgument(Iterable.class, 0);
 		}
 
 		if (isNullableWrapper()) {
-			ResolvableType mapValueType = resolvableType.getGeneric(0);
-			if (ResolvableType.NONE.equals(mapValueType)) {
-				return null;
-			}
-			return mapValueType != null ? new TypeDiscoverer(mapValueType) : new ClassTypeInformation<>(Object.class);
-		}
-
-		if (resolvableType.hasGenerics()) {
-			ResolvableType mapValueType = resolvableType.getGeneric(0);
-			return mapValueType != null ? new TypeDiscoverer(mapValueType) : new ClassTypeInformation<>(Object.class);
+			return getTypeArgument(rawType, 0);
 		}
 
-		return null;
-	}
+		List<TypeInformation<?>> arguments = getTypeArguments();
 
-	private boolean isNullableWrapper() {
-		return NullableWrapperConverters.supports(getType());
+		return arguments.size() > 0 ? arguments.get(0) : null;
 	}
 
 	@Override
@@ -279,50 +175,31 @@ public class TypeDiscoverer<S> implements TypeInformation<S> {
 	@Nullable
 	protected TypeInformation<?> doGetMapValueType() {
 
-		if (isMap()) {
-			if (ClassUtils.isAssignable(Map.class, getType())) {
-				ResolvableType mapValueType = resolvableType.asMap().getGeneric(1);
-				if (ResolvableType.NONE.equals(mapValueType)) {
-					return null;
-				}
-
-				return mapValueType != null ? new TypeDiscoverer(mapValueType) : new ClassTypeInformation<>(Object.class);
-			}
-			if (resolvableType.hasGenerics()) {
-				ResolvableType mapValueType = resolvableType.getGeneric(1);
-				return mapValueType != null ? new TypeDiscoverer(mapValueType) : new ClassTypeInformation<>(Object.class);
-			}
-			return Arrays.stream(resolvableType.getInterfaces()).filter(ResolvableType::hasGenerics)
-					.findFirst()
-					.map(it -> it.getGeneric(1))
-					.map(TypeDiscoverer::new)
-					.orElse(null);
-		}
-
-		if (!resolvableType.hasGenerics()) {
-			return null;
-		}
-		ResolvableType x = Arrays.stream(resolvableType.getGenerics()).skip(1).findFirst().orElse(null);
-		if ((x == null) || ResolvableType.NONE.equals(x)) {
-			return null;
-		}
-
-		return new TypeDiscoverer<>(x);
+		return isMap() //
+				? getTypeArgument(CustomCollections.getMapBaseType(getType()), 1)
+				: getTypeArguments().stream().skip(1).findFirst().orElse(null);
 	}
 
 	@Override
+	@SuppressWarnings("unchecked")
 	public Class<S> getType() {
 		return (Class<S>) resolvableType.toClass();
 	}
 
+	@Override
+	public TypeDescriptor toTypeDescriptor() {
+		return new TypeDescriptor(resolvableType, getType(), null);
+	}
+
 	@Override
 	public ClassTypeInformation<?> getRawTypeInformation() {
-		return new ClassTypeInformation<>(this.resolvableType.getRawClass());
+		return new ClassTypeInformation<>(ResolvableType.forRawClass(resolvableType.getRawClass()));
 	}
 
 	@Nullable
 	@Override
 	public TypeInformation<?> getActualType() {
+
 		if (isMap()) {
 			return getMapValueType();
 		}
@@ -331,8 +208,6 @@ public class TypeDiscoverer<S> implements TypeInformation<S> {
 			return getComponentType();
 		}
 
-		// TODO: Consider that we will support value types beyond Optional<T>, such as Json<T>, Foo<T> that should remain
-		// configurable.
 		if (isNullableWrapper()) {
 			return getComponentType();
 		}
@@ -342,10 +217,7 @@ public class TypeDiscoverer<S> implements TypeInformation<S> {
 
 	@Override
 	public TypeInformation<?> getReturnType(Method method) {
-
-		Assert.notNull(method, "Method must not be null");
-
-		return new TypeDiscoverer(ResolvableType.forMethodReturnType(method, getType()));
+		return TypeInformation.of(ResolvableType.forMethodReturnType(method, getType()));
 	}
 
 	@Override
@@ -353,9 +225,11 @@ public class TypeDiscoverer<S> implements TypeInformation<S> {
 
 		Assert.notNull(method, "Method most not be null");
 
-		return Streamable.of(method.getParameters()).stream().map(MethodParameter::forParameter)
-				.map(it -> ResolvableType.forMethodParameter(it, resolvableType)).map(TypeDiscoverer::new)
-				.collect(Collectors.toList());
+		return Arrays.stream(method.getParameters()) //
+				.map(MethodParameter::forParameter) //
+				.map(it -> ResolvableType.forMethodParameter(it, resolvableType)) //
+				.<TypeInformation<?>> map(TypeInformation::of) //
+				.toList();
 
 	}
 
@@ -373,46 +247,24 @@ public class TypeDiscoverer<S> implements TypeInformation<S> {
 			return this;
 		}
 
-		List<ResolvableType> candidates = new ArrayList<>();
+		var resolvableSuperType = resolvableType.as(superType);
+		var type = resolvableType.getType();
 
-		ResolvableType genericSuperclass = resolvableType.getSuperType();
-		if ((genericSuperclass != null) && !genericSuperclass.equals(ResolvableType.NONE)) {
-			candidates.add(genericSuperclass);
+		if (!(type instanceof Class) || !ObjectUtils.isEmpty(((Class<?>) type).getTypeParameters())) {
+			return TypeInformation.of(resolvableSuperType);
 		}
 
-		candidates.addAll(Arrays.asList(resolvableType.getInterfaces()));
-
-		for (var candidate : candidates) {
-			if (ObjectUtils.nullSafeEquals(superType, candidate.toClass())) {
-
-				if (resolvableType.getType() instanceof Class) {
-
-					if (ObjectUtils.isEmpty(((Class) resolvableType.getType()).getTypeParameters())) {
-						Class<?>[] classes = candidate.resolveGenerics(null);
-
-						if (!Arrays.stream(classes).filter(it -> it != null).findAny().isPresent()) {
-							return new TypeDiscoverer<>(ResolvableType.forRawClass(superType));
-						}
-					}
-				}
-				return new TypeDiscoverer(ResolvableType.forClass(superType, getType()));
-			} else {
-				var sup = candidate.getSuperType();
-				if ((sup != null) && !ResolvableType.NONE.equals(sup)) {
-					if (sup.equals(resolvableType)) {
-						return this;
-					}
-					return new TypeDiscoverer(sup);
-				}
-			}
-		}
+		var noGenericsResolvable = !Arrays.stream(resolvableSuperType.resolveGenerics())
+				.filter(it -> it != null)
+				.findAny()
+				.isPresent();
 
-		return new TypeDiscoverer(resolvableType.as(superType));
+		return noGenericsResolvable
+				? new ClassTypeInformation<>(ResolvableType.forRawClass(superType))
+				: TypeInformation.of(resolvableSuperType);
 	}
 
-	/* (non-Javadoc)
-	 * @see org.springframework.data.util.TypeInformation#isAssignableFrom(org.springframework.data.util.TypeInformation)
-	 */
+	@Override
 	public boolean isAssignableFrom(TypeInformation<?> target) {
 
 		TypeInformation<?> superTypeInformation = target.getSuperTypeInformation(getType());
@@ -420,6 +272,7 @@ public class TypeDiscoverer<S> implements TypeInformation<S> {
 		if (superTypeInformation == null) {
 			return false;
 		}
+
 		if (superTypeInformation.equals(this)) {
 			return true;
 		}
@@ -433,62 +286,58 @@ public class TypeDiscoverer<S> implements TypeInformation<S> {
 
 	@Override
 	public List<TypeInformation<?>> getTypeArguments() {
+		return typeArguments.get();
+	}
+
+	private List<TypeInformation<?>> doGetTypeArguments() {
 
 		if (!resolvableType.hasGenerics()) {
 			return Collections.emptyList();
 		}
 
-		return Arrays.stream(resolvableType.getGenerics()).map(it -> {
-			if ((it == null) || ResolvableType.NONE.equals(it)) {
-				return null;
-			}
-			return new TypeDiscoverer<>(it);
-
-		}).collect(Collectors.toList());
+		return Arrays.stream(resolvableType.getGenerics())
+				.<TypeInformation<?>> map(it -> it.resolve(Object.class) == null ? null : TypeInformation.of(it))
+				.toList();
 	}
 
 	@Override
-	public TypeInformation<? extends S> specialize(ClassTypeInformation<?> type) {
-		// if(isAssignableFrom(type)) {
-		// return new ClassTypeInformation(type.getType());
-		// }
-		// return new NewTypeDiscoverer(type.resolvableType.as(getType()));
-		// if(type.resolvableType.isAssignableFrom(type.resolvableType)) {
-		// return (TypeInformation<? extends S>) type;
-		// }
-
-		if (this.resolvableType.getGenerics().length == type.resolvableType.getGenerics().length) {
-			return new TypeDiscoverer<>(
+	@SuppressWarnings("unchecked")
+	public TypeInformation<? extends S> specialize(TypeInformation<?> type) {
+
+		if (this.getTypeArguments().size() == type.getTypeArguments().size()) {
+			return (TypeInformation<? extends S>) TypeInformation.of(
 					ResolvableType.forClassWithGenerics(type.getType(), this.resolvableType.getGenerics()));
 		}
 
-		return new ClassTypeInformation(type.getType());
+		return TypeInformation.of((Class<S>) type.getType());
 	}
 
 	@Override
-	public boolean equals(Object o) {
+	public boolean equals(@Nullable Object o) {
+
 		if (this == o) {
 			return true;
 		}
+
 		if ((o == null) || !ClassUtils.isAssignable(getClass(), o.getClass())) {
 			return false;
 		}
 
-		TypeDiscoverer<?> that = (TypeDiscoverer<?>) o;
+		var that = (TypeDiscoverer<?>) o;
 
 		if (!ObjectUtils.nullSafeEquals(getType(), that.getType())) {
 			return false;
 		}
 
-		List<? extends Class<?>> collect1 = Arrays.stream(resolvableType.getGenerics()).map(ResolvableType::toClass)
+		var collect1 = Arrays.stream(resolvableType.getGenerics()) //
+				.map(ResolvableType::toClass) //
 				.collect(Collectors.toList());
-		List<? extends Class<?>> collect2 = Arrays.stream(that.resolvableType.getGenerics()).map(ResolvableType::toClass)
+
+		var collect2 = Arrays.stream(that.resolvableType.getGenerics()) //
+				.map(ResolvableType::toClass) //
 				.collect(Collectors.toList());
 
-		if (!ObjectUtils.nullSafeEquals(collect1, collect2)) {
-			return false;
-		}
-		return true;
+		return ObjectUtils.nullSafeEquals(collect1, collect2);
 	}
 
 	@Override
@@ -498,6 +347,57 @@ public class TypeDiscoverer<S> implements TypeInformation<S> {
 
 	@Override
 	public String toString() {
-		return getType().getName();
+		return resolvableType.toString();
+	}
+
+	@Nullable
+	private TypeInformation<?> getTypeArgument(Class<?> bound, int index) {
+
+		var superTypeInformation = getSuperTypeInformation(bound);
+
+		if (superTypeInformation == null) {
+			return null;
+		}
+
+		var arguments = superTypeInformation.getTypeArguments();
+
+		if (arguments.isEmpty() || (index > (arguments.size() - 1))) {
+			return null;
+		}
+
+		return arguments.get(index);
+	}
+
+	private Optional<TypeInformation<?>> getPropertyInformation(String fieldname) {
+
+		var rawType = getType();
+		var field = ReflectionUtils.findField(rawType, fieldname);
+
+		return field != null
+				? Optional.of(TypeInformation.of(ResolvableType.forField(field, resolvableType)))
+				: Optional.ofNullable(BeanUtils.getPropertyDescriptor(rawType, fieldname))
+						.map(it -> from(it, rawType))
+						.map(TypeInformation::of);
+	}
+
+	private ResolvableType from(PropertyDescriptor descriptor, Class<?> rawType) {
+
+		var method = descriptor.getReadMethod();
+
+		if (method != null) {
+			return ResolvableType.forMethodReturnType(method, rawType);
+		}
+
+		method = descriptor.getWriteMethod();
+
+		if (method != null) {
+			return ResolvableType.forMethodParameter(method, 0, rawType);
+		}
+
+		return ResolvableType.forType(descriptor.getPropertyType(), resolvableType);
+	}
+
+	private boolean isNullableWrapper() {
+		return NullableWrapperConverters.supports(getType());
 	}
 }

src/main/java/org/springframework/data/util/TypeInformation.java

@@ -17,10 +17,15 @@ package org.springframework.data.util;
 
 import java.lang.reflect.Constructor;
 import java.lang.reflect.Method;
+import java.util.Collection;
 import java.util.List;
+import java.util.Map;
+import java.util.Set;
 
+import org.springframework.core.ResolvableType;
 import org.springframework.core.convert.TypeDescriptor;
 import org.springframework.lang.Nullable;
+import org.springframework.util.Assert;
 
 /**
  * Interface to access property types and resolving generics on the way. Starting with a {@link ClassTypeInformation}
@@ -30,9 +35,77 @@ import org.springframework.lang.Nullable;
  * @author Mark Paluch
  * @author Alessandro Nistico
  * @author Johannes Englmeier
+ * @author Christoph Strobl
  */
+@SuppressWarnings({ "deprecation", "rawtypes" })
 public interface TypeInformation<S> {
 
+	public static final TypeInformation<Collection> COLLECTION = ClassTypeInformation.COLLECTION;
+	public static final TypeInformation<List> LIST = ClassTypeInformation.LIST;
+	public static final TypeInformation<Set> SET = ClassTypeInformation.SET;
+	public static final TypeInformation<Map> MAP = ClassTypeInformation.MAP;
+	public static final TypeInformation<Object> OBJECT = ClassTypeInformation.OBJECT;
+
+	static TypeInformation<?> orObject(@Nullable ResolvableType type) {
+		return type == null ? ClassTypeInformation.OBJECT : of(type);
+	}
+
+	/**
+	 * Creates a new {@link TypeInformation} from the given {@link ResolvableType}.
+	 *
+	 * @param type must not be {@literal null}.
+	 * @return will never be {@literal null}.
+	 * @since 3.0
+	 */
+	public static TypeInformation<?> of(ResolvableType type) {
+
+		Assert.notNull(type, "Type must not be null");
+
+		return type.hasGenerics() || (type.isArray() && type.getComponentType().hasGenerics()) //
+				? TypeDiscoverer.td(type)
+				: ClassTypeInformation.cti(type);
+	}
+
+	/**
+	 * Creates a new {@link TypeInformation} for the given {@link Class}.
+	 *
+	 * @param type must not be {@literal null}.
+	 * @return will never be {@literal null}.
+	 * @since 3.0
+	 */
+	public static <S> TypeInformation<S> of(Class<S> type) {
+
+		Assert.notNull(type, "Type must not be null");
+
+		return ClassTypeInformation.from(type);
+	}
+
+	/**
+	 * Returns a {@link TypeInformation} for the given {@link Method}.
+	 *
+	 * @param method must not be {@literal null}.
+	 * @return will never be {@literal null}.
+	 * @since 3.0
+	 */
+	public static TypeInformation<?> fromReturnTypeOf(Method method) {
+
+		Assert.notNull(method, "Method must not be null");
+
+		return fromReturnTypeOf(method, null);
+	}
+
+	/**
+	 * Returns a {@link TypeInformation} for the given method as declared on the given type.
+	 *
+	 * @param method must not be {@literal null}.
+	 * @param type can be {@literal null}.
+	 * @return will never be {@literal null}.
+	 * @since 3.0
+	 */
+	public static TypeInformation<?> fromReturnTypeOf(Method method, @Nullable Class<?> type) {
+		return ClassTypeInformation.fromReturnTypeOf(method, type);
+	}
+
 	/**
 	 * Returns the {@link TypeInformation}s for the parameters of the given {@link Constructor}.
 	 *
@@ -162,7 +235,7 @@ public interface TypeInformation<S> {
 	default TypeInformation<?> getUserTypeInformation() {
 
 		Class<?> userType = ProxyUtils.getUserClass(getType());
-		return userType.equals(getType()) ? this : ClassTypeInformation.from(userType);
+		return userType.equals(getType()) ? this : TypeInformation.of(userType);
 	}
 
 	/**
@@ -276,12 +349,27 @@ public interface TypeInformation<S> {
 	 *
 	 * @param type must not be {@literal null}.
 	 * @return will never be {@literal null}.
+	 * @deprecated since 3.0. Use {@link #specialize(TypeInformation)} instead, i.e. switch the given parameter's type to
+	 *             {@link TypeInformation} in the first place.
 	 */
-	TypeInformation<? extends S> specialize(ClassTypeInformation<?> type);
+	@Deprecated
+	default TypeInformation<? extends S> specialize(ClassTypeInformation<?> type) {
+		return specialize((TypeInformation<?>) type);
+	}
 
+	/**
+	 * Specializes the given (raw) {@link TypeInformation} using the context of the current potentially parameterized
+	 * type, basically turning the given raw type into a parameterized one. Will return the given type as is if no
+	 * generics are involved.
+	 *
+	 * @param type must not be {@literal null}.
+	 * @return will never be {@literal null}.
+	 */
+	@SuppressWarnings("unchecked")
 	default TypeInformation<? extends S> specialize(TypeInformation<?> type) {
-		return specialize(ClassTypeInformation.from(type.getType()));
+		return (TypeInformation<? extends S>) type;
 	}
+
 	/**
 	 * Returns whether the current type is a sub type of the given one, i.e. whether it's assignable but not the same one.
 	 *

src/main/java/org/springframework/data/web/JsonProjectingMethodInterceptorFactory.java

@@ -29,12 +29,10 @@ import java.util.Map;
 
 import org.aopalliance.intercept.MethodInterceptor;
 import org.aopalliance.intercept.MethodInvocation;
-
 import org.springframework.core.ResolvableType;
 import org.springframework.core.annotation.AnnotationUtils;
 import org.springframework.data.projection.Accessor;
 import org.springframework.data.projection.MethodInterceptorFactory;
-import org.springframework.data.util.ClassTypeInformation;
 import org.springframework.data.util.TypeInformation;
 import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
@@ -146,7 +144,7 @@ public class JsonProjectingMethodInterceptorFactory implements MethodInterceptor
 		public Object invoke(MethodInvocation invocation) throws Throwable {
 
 			Method method = invocation.getMethod();
-			TypeInformation<?> returnType = ClassTypeInformation.fromReturnTypeOf(method);
+			TypeInformation<?> returnType = TypeInformation.fromReturnTypeOf(method);
 			ResolvableType type = ResolvableType.forMethodReturnType(method);
 			boolean isCollectionResult = Collection.class.isAssignableFrom(type.getRawClass());
 			type = isCollectionResult ? type : ResolvableType.forClassWithGenerics(List.class, type);

src/main/java/org/springframework/data/web/querydsl/QuerydslPredicateArgumentResolverSupport.java

@@ -29,7 +29,6 @@ import org.springframework.data.querydsl.binding.QuerydslBindingsFactory;
 import org.springframework.data.querydsl.binding.QuerydslPredicate;
 import org.springframework.data.querydsl.binding.QuerydslPredicateBuilder;
 import org.springframework.data.util.CastUtils;
-import org.springframework.data.util.ClassTypeInformation;
 import org.springframework.data.util.TypeInformation;
 import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
@@ -135,7 +134,7 @@ public abstract class QuerydslPredicateArgumentResolverSupport {
 		Optional<QuerydslPredicate> annotation = predicateAnnotation.synthesize(MergedAnnotation::isPresent);
 
 		return annotation.filter(it -> !Object.class.equals(it.root()))//
-				.<TypeInformation<?>> map(it -> ClassTypeInformation.from(it.root()))//
+				.<TypeInformation<?>> map(it -> TypeInformation.of(it.root()))//
 				.orElseGet(() -> detectDomainType(parameter));
 	}
 
@@ -147,7 +146,7 @@ public abstract class QuerydslPredicateArgumentResolverSupport {
 			throw new IllegalArgumentException("Method parameter is not backed by a method");
 		}
 
-		return detectDomainType(ClassTypeInformation.fromReturnTypeOf(method));
+		return detectDomainType(TypeInformation.fromReturnTypeOf(method));
 	}
 
 	private static TypeInformation<?> detectDomainType(TypeInformation<?> source) {

src/test/java/org/springframework/data/convert/ConfigurableTypeInformationMapperUnitTests.java

@@ -25,10 +25,9 @@ import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.junit.jupiter.MockitoExtension;
-
 import org.springframework.data.mapping.Alias;
 import org.springframework.data.mapping.PersistentProperty;
-import org.springframework.data.util.ClassTypeInformation;
+import org.springframework.data.util.TypeInformation;
 
 /**
  * Unit tests for {@link ConfigurableTypeInformationMapper}.
@@ -64,14 +63,14 @@ class ConfigurableTypeInformationMapperUnitTests<T extends PersistentProperty<T>
 	@Test
 	void writesMapKeyForType() {
 
-		assertThat(mapper.createAliasFor(ClassTypeInformation.from(String.class))).isEqualTo(Alias.of("1"));
-		assertThat(mapper.createAliasFor(ClassTypeInformation.from(Object.class))).isEqualTo(Alias.NONE);
+		assertThat(mapper.createAliasFor(TypeInformation.of(String.class))).isEqualTo(Alias.of("1"));
+		assertThat(mapper.createAliasFor(TypeInformation.of(Object.class))).isEqualTo(Alias.NONE);
 	}
 
 	@Test
 	void readsTypeForMapKey() {
 
-		assertThat(mapper.resolveTypeFrom(Alias.of("1"))).isEqualTo(ClassTypeInformation.from(String.class));
+		assertThat(mapper.resolveTypeFrom(Alias.of("1"))).isEqualTo(TypeInformation.of(String.class));
 		assertThat(mapper.resolveTypeFrom(Alias.of("unmapped"))).isNull();
 	}
 }

src/test/java/org/springframework/data/convert/DefaultTypeMapperUnitTests.java

@@ -46,7 +46,7 @@ import org.springframework.data.util.TypeInformation;
 @MockitoSettings(strictness = Strictness.LENIENT)
 class DefaultTypeMapperUnitTests {
 
-	static final TypeInformation<String> STRING_TYPE_INFO = ClassTypeInformation.from(String.class);
+	static final TypeInformation<String> STRING_TYPE_INFO = TypeInformation.of(String.class);
 	static final Alias ALIAS = Alias.of(String.class.getName());
 
 	@Mock TypeAliasAccessor<Map<String, String>> accessor;
@@ -88,9 +88,9 @@ class DefaultTypeMapperUnitTests {
 	@Test // DATACMNS-783
 	void specializesRawSourceTypeUsingGenericContext() {
 
-		var root = ClassTypeInformation.from(Foo.class);
+		var root = TypeInformation.of(Foo.class);
 		var propertyType = root.getProperty("abstractBar");
-		TypeInformation<?> barType = ClassTypeInformation.from(Bar.class);
+		TypeInformation<?> barType = TypeInformation.of(Bar.class);
 
 		doReturn(Alias.of(barType)).when(accessor).readAliasFrom(source);
 		doReturn(barType).when(mapper).resolveTypeFrom(Alias.of(barType));

src/test/java/org/springframework/data/convert/MappingContextTypeInformationMapperUnitTests.java

@@ -16,7 +16,6 @@
 package org.springframework.data.convert;
 
 import static org.assertj.core.api.Assertions.*;
-import static org.springframework.data.util.ClassTypeInformation.from;
 
 import java.util.Collections;
 
@@ -28,7 +27,7 @@ import org.springframework.data.mapping.PersistentEntity;
 import org.springframework.data.mapping.context.SampleMappingContext;
 import org.springframework.data.mapping.context.SamplePersistentProperty;
 import org.springframework.data.util.AnnotatedTypeScanner;
-import org.springframework.data.util.ClassTypeInformation;
+import org.springframework.data.util.TypeInformation;
 
 /**
  * Unit tests for {@link MappingContextTypeInformationMapper}.
@@ -58,7 +57,7 @@ class MappingContextTypeInformationMapperUnitTests {
 
 		mapper = new MappingContextTypeInformationMapper(mappingContext);
 
-		assertThat(mapper.createAliasFor(ClassTypeInformation.from(Entity.class)).hasValue("foo")).isTrue();
+		assertThat(mapper.createAliasFor(TypeInformation.of(Entity.class)).hasValue("foo")).isTrue();
 	}
 
 	@Test
@@ -69,7 +68,7 @@ class MappingContextTypeInformationMapperUnitTests {
 
 		mapper = new MappingContextTypeInformationMapper(mappingContext);
 
-		assertThat(mapper.createAliasFor(from(Entity.class)).hasValue("foo")).isTrue();
+		assertThat(mapper.createAliasFor(TypeInformation.of(Entity.class)).hasValue("foo")).isTrue();
 	}
 
 	@Test
@@ -79,7 +78,7 @@ class MappingContextTypeInformationMapperUnitTests {
 		mappingContext.initialize();
 
 		mapper = new MappingContextTypeInformationMapper(mappingContext);
-		assertThat(mapper.createAliasFor(from(String.class)).isPresent()).isFalse();
+		assertThat(mapper.createAliasFor(TypeInformation.of(String.class)).isPresent()).isFalse();
 	}
 
 	@Test
@@ -94,7 +93,7 @@ class MappingContextTypeInformationMapperUnitTests {
 		PersistentEntity<?, SamplePersistentProperty> entity = mappingContext.getRequiredPersistentEntity(Entity.class);
 
 		assertThat(entity).isNotNull();
-		assertThat(mapper.resolveTypeFrom(Alias.of("foo"))).isEqualTo(from(Entity.class));
+		assertThat(mapper.resolveTypeFrom(Alias.of("foo"))).isEqualTo(TypeInformation.of(Entity.class));
 	}
 
 	@Test // DATACMNS-485

src/test/java/org/springframework/data/convert/SimpleTypeInformationMapperUnitTests.java

@@ -39,7 +39,7 @@ class SimpleTypeInformationMapperUnitTests {
 
 		var type = mapper.resolveTypeFrom(Alias.of("java.lang.String"));
 
-		TypeInformation<?> expected = ClassTypeInformation.from(String.class);
+		TypeInformation<?> expected = TypeInformation.of(String.class);
 
 		assertThat(type).isEqualTo(expected);
 	}
@@ -73,7 +73,7 @@ class SimpleTypeInformationMapperUnitTests {
 	@Test
 	void usesFullyQualifiedClassNameAsTypeKey() {
 
-		assertThat(mapper.createAliasFor(ClassTypeInformation.from(String.class)))
+		assertThat(mapper.createAliasFor(TypeInformation.of(String.class)))
 				.isEqualTo(Alias.of(String.class.getName()));
 	}
 

src/test/java/org/springframework/data/mapping/ParameterUnitTests.java

@@ -23,8 +23,6 @@ import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.Mock;
 import org.mockito.junit.jupiter.MockitoExtension;
-
-import org.springframework.data.util.ClassTypeInformation;
 import org.springframework.data.util.TypeInformation;
 
 /**
@@ -38,7 +36,7 @@ class ParameterUnitTests<P extends PersistentProperty<P>> {
 	@Mock PersistentEntity<Object, P> entity;
 	@Mock PersistentEntity<String, P> stringEntity;
 
-	private TypeInformation<Object> type = ClassTypeInformation.from(Object.class);
+	private TypeInformation<Object> type = TypeInformation.of(Object.class);
 	private Annotation[] annotations = new Annotation[0];
 
 	@Test
@@ -84,7 +82,7 @@ class ParameterUnitTests<P extends PersistentProperty<P>> {
 	void twoParametersWithDifferenTypeAreNotEqual() {
 
 		var left = new Parameter<Object, P>("name", type, annotations, entity);
-		var right = new Parameter<String, P>("name", ClassTypeInformation.from(String.class), annotations,
+		var right = new Parameter<String, P>("name", TypeInformation.of(String.class), annotations,
 				stringEntity);
 
 		assertThat(left).isNotEqualTo(right);

src/test/java/org/springframework/data/mapping/PreferredConstructorDiscovererUnitTests.java

@@ -24,13 +24,12 @@ import java.lang.annotation.Target;
 import java.util.Iterator;
 
 import org.junit.jupiter.api.Test;
-
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.data.annotation.PersistenceConstructor;
 import org.springframework.data.mapping.PreferredConstructorDiscovererUnitTests.Outer.Inner;
 import org.springframework.data.mapping.model.BasicPersistentEntity;
 import org.springframework.data.mapping.model.PreferredConstructorDiscoverer;
-import org.springframework.data.util.ClassTypeInformation;
+import org.springframework.data.util.TypeInformation;
 
 /**
  * Unit tests for {@link PreferredConstructorDiscoverer}.
@@ -94,7 +93,7 @@ class PreferredConstructorDiscovererUnitTests<P extends PersistentProperty<P>> {
 	@Test // DATACMNS-134, DATACMNS-1126
 	void discoversInnerClassConstructorCorrectly() {
 
-		PersistentEntity<Inner, P> entity = new BasicPersistentEntity<>(ClassTypeInformation.from(Inner.class));
+		PersistentEntity<Inner, P> entity = new BasicPersistentEntity<>(TypeInformation.of(Inner.class));
 
 		assertThat(PreferredConstructorDiscoverer.discover(entity)).satisfies(constructor -> {
 
@@ -107,7 +106,7 @@ class PreferredConstructorDiscovererUnitTests<P extends PersistentProperty<P>> {
 	void skipsSyntheticConstructor() {
 
 		PersistentEntity<SyntheticConstructor, P> entity = new BasicPersistentEntity<>(
-				ClassTypeInformation.from(SyntheticConstructor.class));
+				TypeInformation.of(SyntheticConstructor.class));
 
 		assertThat(PreferredConstructorDiscoverer.discover(entity)).satisfies(constructor -> {
 
@@ -222,11 +221,11 @@ class PreferredConstructorDiscovererUnitTests<P extends PersistentProperty<P>> {
 
 	static class ClassWithMetaAnnotatedParameter {
 
-		ClassWithMetaAnnotatedParameter(@MyValue String value) { }
+		ClassWithMetaAnnotatedParameter(@MyValue String value) {}
 	}
 
 	@Target(ElementType.PARAMETER)
 	@Retention(RetentionPolicy.RUNTIME)
 	@Value("${hello-world}")
-	@interface MyValue { }
+	@interface MyValue {}
 }

src/test/java/org/springframework/data/mapping/PropertyPathUnitTests.java

@@ -23,8 +23,6 @@ import java.util.Set;
 import java.util.regex.Pattern;
 
 import org.junit.jupiter.api.Test;
-
-import org.springframework.data.util.ClassTypeInformation;
 import org.springframework.data.util.TypeInformation;
 
 /**
@@ -44,7 +42,7 @@ class PropertyPathUnitTests {
 
 		assertThat(reference.hasNext()).isFalse();
 		assertThat(reference.toDotPath()).isEqualTo("userName");
-		assertThat(reference.getOwningType()).isEqualTo(ClassTypeInformation.from(Foo.class));
+		assertThat(reference.getOwningType()).isEqualTo(TypeInformation.of(Foo.class));
 	}
 
 	@Test

src/test/java/org/springframework/data/mapping/PropertyReferenceExceptionUnitTests.java

@@ -21,8 +21,6 @@ import java.util.Collections;
 import java.util.List;
 
 import org.junit.jupiter.api.Test;
-
-import org.springframework.data.util.ClassTypeInformation;
 import org.springframework.data.util.TypeInformation;
 
 /**
@@ -33,7 +31,7 @@ import org.springframework.data.util.TypeInformation;
  */
 public class PropertyReferenceExceptionUnitTests {
 
-	static final TypeInformation<Sample> TYPE_INFO = ClassTypeInformation.from(Sample.class);
+	static final TypeInformation<Sample> TYPE_INFO = TypeInformation.of(Sample.class);
 	static final List<PropertyPath> NO_PATHS = Collections.emptyList();
 
 	@Test

src/test/java/org/springframework/data/mapping/context/AbstractMappingContextIntegrationTests.java

@@ -28,7 +28,6 @@ import org.springframework.data.mapping.PropertyHandler;
 import org.springframework.data.mapping.model.BasicPersistentEntity;
 import org.springframework.data.mapping.model.Property;
 import org.springframework.data.mapping.model.SimpleTypeHolder;
-import org.springframework.data.util.ClassTypeInformation;
 import org.springframework.data.util.TypeInformation;
 
 /**
@@ -45,7 +44,7 @@ class AbstractMappingContextIntegrationTests<T extends PersistentProperty<T>> {
 		context.setInitialEntitySet(Collections.singleton(Person.class));
 		context.initialize();
 
-		assertThat(context.getManagedTypes()).contains(ClassTypeInformation.from(Person.class));
+		assertThat(context.getManagedTypes()).contains(TypeInformation.of(Person.class));
 	}
 
 	@Test // DATACMNS-457

src/test/java/org/springframework/data/mapping/context/AbstractMappingContextUnitTests.java

@@ -232,7 +232,7 @@ class AbstractMappingContextUnitTests {
 	void shouldIgnoreKotlinOverrideCtorPropertyInSuperClass() {
 
 		var entity = context
-				.getPersistentEntity(ClassTypeInformation.from(ShadowingPropertyTypeWithCtor.class));
+				.getPersistentEntity(TypeInformation.of(ShadowingPropertyTypeWithCtor.class));
 		entity.doWithProperties((PropertyHandler<SamplePersistentProperty>) property -> {
 			assertThat(property.getField().getDeclaringClass()).isIn(ShadowingPropertyTypeWithCtor.class,
 					ShadowedPropertyTypeWithCtor.class);
@@ -243,7 +243,7 @@ class AbstractMappingContextUnitTests {
 	void shouldIncludeAssignableKotlinOverridePropertyInSuperClass() {
 
 		var entity = context
-				.getPersistentEntity(ClassTypeInformation.from(ShadowingPropertyType.class));
+				.getPersistentEntity(TypeInformation.of(ShadowingPropertyType.class));
 		entity.doWithProperties((PropertyHandler<SamplePersistentProperty>) property -> {
 			assertThat(property.getField().getDeclaringClass()).isIn(ShadowedPropertyType.class, ShadowingPropertyType.class);
 		});
@@ -253,7 +253,7 @@ class AbstractMappingContextUnitTests {
 	void shouldIncludeAssignableShadowedPropertyInSuperClass() {
 
 		var entity = context
-				.getPersistentEntity(ClassTypeInformation.from(ShadowingPropertyAssignable.class));
+				.getPersistentEntity(TypeInformation.of(ShadowingPropertyAssignable.class));
 
 		assertThat(StreamUtils.createStreamFromIterator(entity.iterator())
 				.filter(it -> it.getField().getDeclaringClass().equals(ShadowedPropertyAssignable.class)).findFirst() //
@@ -271,7 +271,7 @@ class AbstractMappingContextUnitTests {
 	void shouldIgnoreNonAssignableOverridePropertyInSuperClass() {
 
 		var entity = context
-				.getPersistentEntity(ClassTypeInformation.from(ShadowingPropertyNotAssignable.class));
+				.getPersistentEntity(TypeInformation.of(ShadowingPropertyNotAssignable.class));
 		entity.doWithProperties((PropertyHandler<SamplePersistentProperty>) property -> {
 			assertThat(property.getField().getDeclaringClass()).isEqualTo(ShadowingPropertyNotAssignable.class);
 		});

src/test/java/org/springframework/data/mapping/context/PersistentEntitiesUnitTests.java

@@ -24,12 +24,11 @@ import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.Mock;
 import org.mockito.junit.jupiter.MockitoExtension;
-
 import org.springframework.data.annotation.Id;
 import org.springframework.data.annotation.Reference;
 import org.springframework.data.mapping.MappingException;
 import org.springframework.data.mapping.model.BasicPersistentEntity;
-import org.springframework.data.util.ClassTypeInformation;
+import org.springframework.data.util.TypeInformation;
 
 /**
  * Unit tests for {@link PersistentEntities}.
@@ -76,7 +75,7 @@ class PersistentEntitiesUnitTests {
 
 		assertThat(entities.getPersistentEntity(Sample.class)).isPresent();
 		assertThat(entities.getPersistentEntity(Object.class)).isNotPresent();
-		assertThat(entities.getManagedTypes()).contains(ClassTypeInformation.from(Sample.class));
+		assertThat(entities.getManagedTypes()).contains(TypeInformation.of(Sample.class));
 
 		assertThat(entities.getPersistentEntity(Sample.class)).hasValueSatisfying(it -> assertThat(entities).contains(it));
 	}

src/test/java/org/springframework/data/mapping/model/AbstractPersistentPropertyUnitTests.java

@@ -35,13 +35,10 @@ import org.jmolecules.ddd.types.AggregateRoot;
 import org.jmolecules.ddd.types.Identifier;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
-
-import org.springframework.data.convert.PropertyValueConverter;
 import org.springframework.data.mapping.Association;
 import org.springframework.data.mapping.PersistentEntity;
 import org.springframework.data.mapping.PersistentProperty;
 import org.springframework.data.mapping.Person;
-import org.springframework.data.util.ClassTypeInformation;
 import org.springframework.data.util.Optionals;
 import org.springframework.data.util.TypeInformation;
 import org.springframework.util.ReflectionUtils;
@@ -62,7 +59,7 @@ public class AbstractPersistentPropertyUnitTests {
 	@BeforeEach
 	void setUp() {
 
-		typeInfo = ClassTypeInformation.from(TestClassComplex.class);
+		typeInfo = TypeInformation.of(TestClassComplex.class);
 		entity = new BasicPersistentEntity<>(typeInfo);
 		typeHolder = new SimpleTypeHolder();
 	}
@@ -142,7 +139,7 @@ public class AbstractPersistentPropertyUnitTests {
 	void doesNotDiscoverGetterAndSetterIfNoPropertyDescriptorGiven() {
 
 		var field = ReflectionUtils.findField(AccessorTestClass.class, "id");
-		var property = Property.of(ClassTypeInformation.from(AccessorTestClass.class), field);
+		var property = Property.of(TypeInformation.of(AccessorTestClass.class), field);
 
 		PersistentProperty<SamplePersistentProperty> persistentProperty = new SamplePersistentProperty(property,
 				getEntity(AccessorTestClass.class), typeHolder);
@@ -247,12 +244,12 @@ public class AbstractPersistentPropertyUnitTests {
 	}
 
 	private <T> BasicPersistentEntity<T, SamplePersistentProperty> getEntity(Class<T> type) {
-		return new BasicPersistentEntity<>(ClassTypeInformation.from(type));
+		return new BasicPersistentEntity<>(TypeInformation.of(type));
 	}
 
 	private <T> SamplePersistentProperty getProperty(Class<T> type, String name) {
 
-		TypeInformation<?> typeInformation = ClassTypeInformation.from(type);
+		TypeInformation<?> typeInformation = TypeInformation.of(type);
 		var field = Optional.ofNullable(ReflectionUtils.findField(type, name));
 		var descriptor = getPropertyDescriptor(type, name);
 

src/test/java/org/springframework/data/mapping/model/AnnotationBasedPersistentPropertyUnitTests.java

@@ -36,7 +36,6 @@ import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.DynamicTest;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.TestFactory;
-
 import org.springframework.core.annotation.AliasFor;
 import org.springframework.core.annotation.AnnotationUtils;
 import org.springframework.data.annotation.AccessType;
@@ -49,7 +48,7 @@ import org.springframework.data.mapping.MappingException;
 import org.springframework.data.mapping.PersistentProperty;
 import org.springframework.data.mapping.context.SampleMappingContext;
 import org.springframework.data.mapping.context.SamplePersistentProperty;
-import org.springframework.data.util.ClassTypeInformation;
+import org.springframework.data.util.TypeInformation;
 import org.springframework.lang.Nullable;
 import org.springframework.test.util.ReflectionTestUtils;
 
@@ -328,7 +327,7 @@ public class AnnotationBasedPersistentPropertyUnitTests<P extends AnnotationBase
 
 		assertThat(property.getPersistentEntityTypeInformation()) //
 				.isNotEmpty() //
-				.allMatch(it -> it.equals(ClassTypeInformation.from(Sample.class)));
+				.allMatch(it -> it.equals(TypeInformation.of(Sample.class)));
 	}
 
 	@Test // #2438
@@ -461,8 +460,7 @@ public class AnnotationBasedPersistentPropertyUnitTests<P extends AnnotationBase
 	@Retention(RetentionPolicy.RUNTIME)
 	@Target(value = { FIELD, METHOD, ANNOTATION_TYPE })
 	@Id
-	public @interface MyId {
-	}
+	public @interface MyId {}
 
 	static class FieldAccess {
 		String name;

src/test/java/org/springframework/data/mapping/model/BasicPersistentEntityUnitTests.java

@@ -36,7 +36,6 @@ import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.Mock;
 import org.mockito.Mockito;
 import org.mockito.junit.jupiter.MockitoExtension;
-
 import org.springframework.core.annotation.AliasFor;
 import org.springframework.data.annotation.AccessType;
 import org.springframework.data.annotation.AccessType.Type;
@@ -59,7 +58,7 @@ import org.springframework.data.mapping.PersistentPropertyAccessor;
 import org.springframework.data.mapping.Person;
 import org.springframework.data.mapping.context.SampleMappingContext;
 import org.springframework.data.mapping.context.SamplePersistentProperty;
-import org.springframework.data.util.ClassTypeInformation;
+import org.springframework.data.util.TypeInformation;
 import org.springframework.lang.Nullable;
 import org.springframework.test.util.ReflectionTestUtils;
 
@@ -287,7 +286,7 @@ class BasicPersistentEntityUnitTests<T extends PersistentProperty<T>> {
 		var failed = new AtomicBoolean(false);
 
 		PersistentEntity<EntityWithAnnotation, T> entity = new BasicPersistentEntity<EntityWithAnnotation, T>(
-				ClassTypeInformation.from(EntityWithAnnotation.class), null) {
+				TypeInformation.of(EntityWithAnnotation.class), null) {
 
 			@Nullable
 			@Override
@@ -378,7 +377,7 @@ class BasicPersistentEntityUnitTests<T extends PersistentProperty<T>> {
 	}
 
 	private <S> BasicPersistentEntity<S, T> createEntity(Class<S> type, Comparator<T> comparator) {
-		return new BasicPersistentEntity<>(ClassTypeInformation.from(type), comparator);
+		return new BasicPersistentEntity<>(TypeInformation.of(type), comparator);
 	}
 
 	private static PersistentEntity<Object, ?> createPopulatedPersistentEntity(Class<?> type) {

src/test/java/org/springframework/data/mapping/model/ClassGeneratingEntityInstantiatorUnitTests.java

@@ -18,7 +18,6 @@ package org.springframework.data.mapping.model;
 import static org.assertj.core.api.Assertions.*;
 import static org.mockito.ArgumentMatchers.*;
 import static org.mockito.Mockito.*;
-import static org.springframework.data.util.ClassTypeInformation.from;
 
 import java.lang.reflect.Constructor;
 import java.util.Arrays;
@@ -40,7 +39,6 @@ import org.springframework.data.mapping.PersistentProperty;
 import org.springframework.data.mapping.PreferredConstructor;
 import org.springframework.data.mapping.model.ClassGeneratingEntityInstantiator.ObjectInstantiator;
 import org.springframework.data.mapping.model.ClassGeneratingEntityInstantiatorUnitTests.Outer.Inner;
-import org.springframework.data.util.ClassTypeInformation;
 import org.springframework.data.util.TypeInformation;
 import org.springframework.test.util.ReflectionTestUtils;
 import org.springframework.util.ReflectionUtils;
@@ -104,7 +102,7 @@ class ClassGeneratingEntityInstantiatorUnitTests<P extends PersistentProperty<P>
 	@Test // DATACMNS-134, DATACMNS-578
 	void createsInnerClassInstanceCorrectly() {
 
-		var entity = new BasicPersistentEntity<Inner, P>(from(Inner.class));
+		var entity = new BasicPersistentEntity<Inner, P>(TypeInformation.of(Inner.class));
 		assertThat(entity.getInstanceCreatorMetadata()).satisfies(constructor -> {
 
 			var parameter = constructor.getParameters().iterator().next();
@@ -130,7 +128,7 @@ class ClassGeneratingEntityInstantiatorUnitTests<P extends PersistentProperty<P>
 	@SuppressWarnings({ "unchecked", "rawtypes" })
 	void capturesContextOnInstantiationException() throws Exception {
 
-		PersistentEntity<Sample, P> entity = new BasicPersistentEntity<>(from(Sample.class));
+		PersistentEntity<Sample, P> entity = new BasicPersistentEntity<>(TypeInformation.of(Sample.class));
 
 		doReturn("FOO").when(provider).getParameterValue(any(Parameter.class));
 
@@ -159,8 +157,9 @@ class ClassGeneratingEntityInstantiatorUnitTests<P extends PersistentProperty<P>
 	@SuppressWarnings({ "unchecked", "rawtypes" })
 	void createsInstancesWithRecursionAndSameCtorArgCountCorrectly() {
 
-		PersistentEntity<SampleWithReference, P> outer = new BasicPersistentEntity<>(from(SampleWithReference.class));
-		PersistentEntity<Sample, P> inner = new BasicPersistentEntity<>(from(Sample.class));
+		PersistentEntity<SampleWithReference, P> outer = new BasicPersistentEntity<>(
+				TypeInformation.of(SampleWithReference.class));
+		PersistentEntity<Sample, P> inner = new BasicPersistentEntity<>(TypeInformation.of(Sample.class));
 
 		doReturn(2L, "FOO").when(provider).getParameterValue(any(Parameter.class));
 
@@ -193,7 +192,8 @@ class ClassGeneratingEntityInstantiatorUnitTests<P extends PersistentProperty<P>
 	@SuppressWarnings({ "unchecked", "rawtypes" })
 	void createsInstancesWithFactoryMethodCorrectly() {
 
-		PersistentEntity<WithFactoryMethod, P> entity = new BasicPersistentEntity<>(from(WithFactoryMethod.class));
+		PersistentEntity<WithFactoryMethod, P> entity = new BasicPersistentEntity<>(
+				TypeInformation.of(WithFactoryMethod.class));
 
 		doReturn(2L, "FOO").when(provider).getParameterValue(any(Parameter.class));
 
@@ -436,7 +436,7 @@ class ClassGeneratingEntityInstantiatorUnitTests<P extends PersistentProperty<P>
 	void entityInstantiatorShouldFailForAbstractClass() {
 
 		assertThatExceptionOfType(MappingInstantiationException.class).isThrownBy(() -> this.instance
-				.createInstance(new BasicPersistentEntity<>(ClassTypeInformation.from(AbstractDto.class)), provider));
+				.createInstance(new BasicPersistentEntity<>(TypeInformation.of(AbstractDto.class)), provider));
 	}
 
 	private void prepareMocks(Class<?> type) {

src/test/java/org/springframework/data/mapping/model/ClassGeneratingPropertyAccessorFactoryEntityTypeTests.java

@@ -21,7 +21,6 @@ import java.io.Serializable;
 import java.time.LocalDateTime;
 
 import org.junit.jupiter.api.Test;
-
 import org.springframework.data.annotation.Id;
 import org.springframework.data.mapping.PersistentEntity;
 import org.springframework.data.mapping.context.SampleMappingContext;

src/test/java/org/springframework/data/mapping/model/EntityCreatorMetadataDiscovererUnitTests.java

@@ -21,7 +21,7 @@ import org.junit.jupiter.api.Test;
 import org.springframework.data.annotation.PersistenceCreator;
 import org.springframework.data.mapping.MappingException;
 import org.springframework.data.mapping.PreferredConstructor;
-import org.springframework.data.util.ClassTypeInformation;
+import org.springframework.data.util.TypeInformation;
 
 /**
  * Unit tests for {@link InstanceCreatorMetadataDiscoverer}.
@@ -33,7 +33,7 @@ class EntityCreatorMetadataDiscovererUnitTests {
 	@Test
 	void shouldDiscoverAnnotatedFactoryMethod() {
 
-		var entity = new BasicPersistentEntity<>(ClassTypeInformation.from(FactoryMethodsPerson.class));
+		var entity = new BasicPersistentEntity<>(TypeInformation.of(FactoryMethodsPerson.class));
 		var creator = InstanceCreatorMetadataDiscoverer.discover(entity);
 
 		assertThat(creator).isInstanceOf(org.springframework.data.mapping.FactoryMethod.class);
@@ -44,7 +44,7 @@ class EntityCreatorMetadataDiscovererUnitTests {
 	@Test
 	void shouldDiscoverAnnotatedConstructor() {
 
-		var entity = new BasicPersistentEntity<>(ClassTypeInformation.from(ConstructorPerson.class));
+		var entity = new BasicPersistentEntity<>(TypeInformation.of(ConstructorPerson.class));
 		var creator = InstanceCreatorMetadataDiscoverer.discover(entity);
 
 		assertThat(creator).isInstanceOf(PreferredConstructor.class);
@@ -53,7 +53,7 @@ class EntityCreatorMetadataDiscovererUnitTests {
 	@Test
 	void shouldDiscoverDefaultConstructor() {
 
-		var entity = new BasicPersistentEntity<>(ClassTypeInformation.from(Person.class));
+		var entity = new BasicPersistentEntity<>(TypeInformation.of(Person.class));
 		var creator = InstanceCreatorMetadataDiscoverer.discover(entity);
 
 		assertThat(creator).isInstanceOf(PreferredConstructor.class);
@@ -62,7 +62,7 @@ class EntityCreatorMetadataDiscovererUnitTests {
 	@Test
 	void shouldRejectNonStaticFactoryMethod() {
 		assertThatExceptionOfType(MappingException.class)
-				.isThrownBy(() -> new BasicPersistentEntity<>(ClassTypeInformation.from(NonStaticFactoryMethod.class)));
+				.isThrownBy(() -> new BasicPersistentEntity<>(TypeInformation.of(NonStaticFactoryMethod.class)));
 	}
 
 	static class Person {

src/test/java/org/springframework/data/mapping/model/FactoryMethodUnitTests.java

@@ -20,7 +20,7 @@ import static org.assertj.core.api.Assertions.*;
 import org.junit.jupiter.api.Test;
 import org.springframework.data.annotation.PersistenceCreator;
 import org.springframework.data.mapping.Parameter;
-import org.springframework.data.util.ClassTypeInformation;
+import org.springframework.data.util.TypeInformation;
 
 /**
  * Unit tests for {@link org.springframework.data.mapping.FactoryMethod}.
@@ -34,7 +34,7 @@ class FactoryMethodUnitTests {
 	@Test
 	void shouldCreateInstanceThroughFactoryMethod() {
 
-		var entity = new BasicPersistentEntity<>(ClassTypeInformation.from(FactoryPerson.class));
+		var entity = new BasicPersistentEntity<>(TypeInformation.of(FactoryPerson.class));
 
 		var result = instantiators.getInstantiatorFor(entity).createInstance(entity,
 				new ParameterValueProvider() {

src/test/java/org/springframework/data/mapping/model/PersistentEntityParameterValueProviderUnitTests.java

@@ -27,7 +27,7 @@ import org.springframework.data.mapping.MappingException;
 import org.springframework.data.mapping.PersistentEntity;
 import org.springframework.data.mapping.PersistentProperty;
 import org.springframework.data.mapping.model.PersistentEntityParameterValueProviderUnitTests.Outer.Inner;
-import org.springframework.data.util.ClassTypeInformation;
+import org.springframework.data.util.TypeInformation;
 
 /**
  * Unit tests for {@link PersistentEntityParameterValueProvider}.
@@ -46,7 +46,7 @@ class PersistentEntityParameterValueProviderUnitTests<P extends PersistentProper
 
 		Object outer = new Outer();
 
-		PersistentEntity<Inner, P> entity = new BasicPersistentEntity<Inner, P>(ClassTypeInformation.from(Inner.class)) {
+		PersistentEntity<Inner, P> entity = new BasicPersistentEntity<Inner, P>(TypeInformation.of(Inner.class)) {
 
 			@Override
 			public P getPersistentProperty(String name) {
@@ -69,7 +69,7 @@ class PersistentEntityParameterValueProviderUnitTests<P extends PersistentProper
 	@Test
 	void rejectsPropertyIfNameDoesNotMatch() {
 
-		PersistentEntity<Entity, P> entity = new BasicPersistentEntity<>(ClassTypeInformation.from(Entity.class));
+		PersistentEntity<Entity, P> entity = new BasicPersistentEntity<>(TypeInformation.of(Entity.class));
 		ParameterValueProvider<P> provider = new PersistentEntityParameterValueProvider<>(entity, propertyValueProvider,
 				Optional.of(property));
 

src/test/java/org/springframework/data/mapping/model/PropertyUnitTests.java

@@ -21,7 +21,7 @@ import lombok.Value;
 import lombok.With;
 
 import org.junit.jupiter.api.Test;
-import org.springframework.data.util.ClassTypeInformation;
+import org.springframework.data.util.TypeInformation;
 import org.springframework.util.ReflectionUtils;
 
 /**
@@ -35,17 +35,17 @@ class PropertyUnitTests {
 	void shouldNotFindWitherMethod() {
 
 		assertThat(Property
-				.of(ClassTypeInformation.from(ImmutableType.class), ReflectionUtils.findField(ImmutableType.class, "id"))
+				.of(TypeInformation.of(ImmutableType.class), ReflectionUtils.findField(ImmutableType.class, "id"))
 				.getWither()).isEmpty();
 		assertThat(Property
-				.of(ClassTypeInformation.from(ImmutableType.class), ReflectionUtils.findField(ImmutableType.class, "name"))
+				.of(TypeInformation.of(ImmutableType.class), ReflectionUtils.findField(ImmutableType.class, "name"))
 				.getWither()).isEmpty();
 	}
 
 	@Test // DATACMNS-1322
 	void shouldDiscoverWitherMethod() {
 
-		var property = Property.of(ClassTypeInformation.from(WitherType.class),
+		var property = Property.of(TypeInformation.of(WitherType.class),
 				ReflectionUtils.findField(WitherType.class, "id"));
 
 		assertThat(property.getWither()).isPresent().hasValueSatisfying(actual -> {
@@ -57,7 +57,7 @@ class PropertyUnitTests {
 	@Test // DATACMNS-1421
 	void shouldDiscoverDerivedWitherMethod() {
 
-		var property = Property.of(ClassTypeInformation.from(DerivedWitherClass.class),
+		var property = Property.of(TypeInformation.of(DerivedWitherClass.class),
 				ReflectionUtils.findField(DerivedWitherClass.class, "id"));
 
 		assertThat(property.getWither()).isPresent().hasValueSatisfying(actual -> {
@@ -70,7 +70,7 @@ class PropertyUnitTests {
 	@Test // DATACMNS-1421
 	void shouldNotDiscoverWitherMethodWithIncompatibleReturnType() {
 
-		var property = Property.of(ClassTypeInformation.from(AnotherLevel.class),
+		var property = Property.of(TypeInformation.of(AnotherLevel.class),
 				ReflectionUtils.findField(AnotherLevel.class, "id"));
 
 		assertThat(property.getWither()).isEmpty();
@@ -110,6 +110,7 @@ class PropertyUnitTests {
 
 	static abstract class WitherIntermediateClass extends WitherBaseClass {
 
+		@Override
 		abstract WitherIntermediateClass withId(String id);
 	}
 
@@ -121,6 +122,7 @@ class PropertyUnitTests {
 			this.id = id;
 		}
 
+		@Override
 		DerivedWitherClass withId(String id) {
 			return new DerivedWitherClass(id);
 		}
@@ -132,6 +134,7 @@ class PropertyUnitTests {
 			super(id);
 		}
 
+		@Override
 		DerivedWitherClass withId(String id) {
 			return new AnotherLevel(id);
 		}

src/test/java/org/springframework/data/mapping/model/ReflectionEntityInstantiatorUnitTests.java

@@ -19,7 +19,6 @@ import static org.assertj.core.api.Assertions.*;
 import static org.mockito.ArgumentMatchers.*;
 import static org.mockito.Mockito.*;
 import static org.springframework.data.mapping.model.ReflectionEntityInstantiator.*;
-import static org.springframework.data.util.ClassTypeInformation.from;
 
 import java.lang.reflect.Constructor;
 import java.util.Arrays;
@@ -34,6 +33,7 @@ import org.springframework.data.mapping.PersistentEntity;
 import org.springframework.data.mapping.PersistentProperty;
 import org.springframework.data.mapping.PreferredConstructor;
 import org.springframework.data.mapping.model.ReflectionEntityInstantiatorUnitTests.Outer.Inner;
+import org.springframework.data.util.TypeInformation;
 import org.springframework.util.ReflectionUtils;
 
 /**
@@ -90,7 +90,7 @@ class ReflectionEntityInstantiatorUnitTests<P extends PersistentProperty<P>> {
 	@Test // DATACMNS-134
 	void createsInnerClassInstanceCorrectly() {
 
-		var entity = new BasicPersistentEntity<Inner, P>(from(Inner.class));
+		var entity = new BasicPersistentEntity<Inner, P>(TypeInformation.of(Inner.class));
 		assertThat(entity.getInstanceCreatorMetadata()).satisfies(it -> {
 
 			var parameter = it.getParameters().iterator().next();
@@ -116,7 +116,7 @@ class ReflectionEntityInstantiatorUnitTests<P extends PersistentProperty<P>> {
 	@SuppressWarnings({ "unchecked", "rawtypes" })
 	void capturesContextOnInstantiationException() throws Exception {
 
-		PersistentEntity<Sample, P> entity = new BasicPersistentEntity<>(from(Sample.class));
+		PersistentEntity<Sample, P> entity = new BasicPersistentEntity<>(TypeInformation.of(Sample.class));
 
 		doReturn("FOO").when(provider).getParameterValue(any(Parameter.class));
 

src/test/java/org/springframework/data/querydsl/binding/QuerydslBindingsFactoryUnitTests.java

@@ -23,14 +23,12 @@ import java.util.Optional;
 
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
-
 import org.springframework.beans.factory.config.AutowireCapableBeanFactory;
 import org.springframework.context.support.GenericApplicationContext;
 import org.springframework.data.querydsl.QUser;
 import org.springframework.data.querydsl.SimpleEntityPathResolver;
 import org.springframework.data.querydsl.User;
 import org.springframework.data.repository.support.Repositories;
-import org.springframework.data.util.ClassTypeInformation;
 import org.springframework.data.util.TypeInformation;
 import org.springframework.test.util.ReflectionTestUtils;
 import org.springframework.web.servlet.ModelAndView;
@@ -47,7 +45,7 @@ import com.querydsl.core.types.Predicate;
  */
 class QuerydslBindingsFactoryUnitTests {
 
-	static final TypeInformation<?> USER_TYPE = ClassTypeInformation.from(User.class);
+	static final TypeInformation<?> USER_TYPE = TypeInformation.of(User.class);
 
 	QuerydslBindingsFactory factory;
 
@@ -123,7 +121,7 @@ class QuerydslBindingsFactoryUnitTests {
 	void rejectsPredicateResolutionIfDomainTypeCantBeAutoDetected() {
 
 		assertThatIllegalStateException()//
-				.isThrownBy(() -> factory.createBindingsFor(ClassTypeInformation.from(ModelAndView.class)))//
+				.isThrownBy(() -> factory.createBindingsFor(TypeInformation.of(ModelAndView.class)))//
 				.withMessageContaining(QuerydslPredicate.class.getSimpleName())//
 				.withMessageContaining("root");
 

src/test/java/org/springframework/data/querydsl/binding/QuerydslBindingsUnitTests.java

@@ -21,7 +21,6 @@ import java.util.Optional;
 
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
-
 import org.springframework.core.convert.support.DefaultConversionService;
 import org.springframework.data.querydsl.Address;
 import org.springframework.data.querydsl.QAddress;
@@ -29,7 +28,7 @@ import org.springframework.data.querydsl.QSpecialUser;
 import org.springframework.data.querydsl.QUser;
 import org.springframework.data.querydsl.SimpleEntityPathResolver;
 import org.springframework.data.querydsl.User;
-import org.springframework.data.util.ClassTypeInformation;
+import org.springframework.data.util.TypeInformation;
 
 import com.querydsl.core.types.Path;
 import com.querydsl.core.types.Predicate;
@@ -230,7 +229,7 @@ class QuerydslBindingsUnitTests {
 
 		bindings.bind(QUser.user.address.city).as("city").first(CONTAINS_BINDING);
 
-		var path = bindings.getPropertyPath("city", ClassTypeInformation.from(User.class));
+		var path = bindings.getPropertyPath("city", TypeInformation.of(User.class));
 
 		assertThat(path).isNotNull();
 		assertThat(bindings.isPathAvailable("city", User.class)).isTrue();
@@ -245,14 +244,14 @@ class QuerydslBindingsUnitTests {
 		bindings.including(QUser.user.address.city);
 		bindings.bind(QUser.user.address.city).as("city").first(CONTAINS_BINDING);
 
-		var path = bindings.getPropertyPath("city", ClassTypeInformation.from(User.class));
+		var path = bindings.getPropertyPath("city", TypeInformation.of(User.class));
 
 		assertThat(path).isNotNull();
 		assertThat(bindings.isPathAvailable("city", User.class)).isTrue();
 
 		assertThat(bindings.isPathAvailable("address.city", User.class)).isTrue();
 
-		var propertyPath = bindings.getPropertyPath("address.city", ClassTypeInformation.from(User.class));
+		var propertyPath = bindings.getPropertyPath("address.city", TypeInformation.of(User.class));
 		assertThat(propertyPath).isNotNull();
 
 		assertAdapterWithTargetBinding(bindings.getBindingForPath(propertyPath), CONTAINS_BINDING);
@@ -263,7 +262,7 @@ class QuerydslBindingsUnitTests {
 
 		bindings.bind(QUser.user.address.city).as("city").withDefaultBinding();
 
-		var path = bindings.getPropertyPath("city", ClassTypeInformation.from(User.class));
+		var path = bindings.getPropertyPath("city", TypeInformation.of(User.class));
 		assertThat(path).isNotNull();
 
 		assertThat(bindings.getBindingForPath(path)).isNotPresent();

src/test/java/org/springframework/data/querydsl/binding/QuerydslPredicateBuilderUnitTests.java

@@ -23,7 +23,6 @@ import java.util.List;
 
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
-
 import org.springframework.data.querydsl.Address;
 import org.springframework.data.querydsl.QSpecialUser;
 import org.springframework.data.querydsl.QUser;
@@ -32,7 +31,8 @@ import org.springframework.data.querydsl.SimpleEntityPathResolver;
 import org.springframework.data.querydsl.User;
 import org.springframework.data.querydsl.UserWrapper;
 import org.springframework.data.querydsl.Users;
-import org.springframework.data.util.ClassTypeInformation;
+// import org.springframework.data.util.ClassTypeInformation;
+import org.springframework.data.util.TypeInformation;
 import org.springframework.data.util.Version;
 import org.springframework.format.support.DefaultFormattingConversionService;
 import org.springframework.util.LinkedMultiValueMap;
@@ -51,7 +51,7 @@ import com.querydsl.core.types.dsl.StringPath;
  */
 class QuerydslPredicateBuilderUnitTests {
 
-	static final ClassTypeInformation<User> USER_TYPE = ClassTypeInformation.from(User.class);
+	static final TypeInformation<User> USER_TYPE = TypeInformation.of(User.class);
 	static final QuerydslBindings DEFAULT_BINDINGS = new QuerydslBindings();
 	static final SingleValueBinding<StringPath, String> CONTAINS_BINDING = (path, value) -> path.contains(value);
 
@@ -79,8 +79,9 @@ class QuerydslPredicateBuilderUnitTests {
 	@Test // DATACMNS-669, DATACMNS-1168
 	void getPredicateShouldReturnEmptyWhenPropertiesAreEmpty() {
 		assertThat(
-				QuerydslPredicateBuilder.isEmpty(builder.getPredicate(ClassTypeInformation.OBJECT, values, DEFAULT_BINDINGS)))
-						.isTrue();
+				QuerydslPredicateBuilder
+						.isEmpty(builder.getPredicate(TypeInformation.of(Object.class), values, DEFAULT_BINDINGS)))
+								.isTrue();
 	}
 
 	@Test // GH-2418
@@ -89,11 +90,11 @@ class QuerydslPredicateBuilderUnitTests {
 		DEFAULT_BINDINGS.bind(QUser.user.description).first(CONTAINS_BINDING);
 
 		values.add("description", "Linz");
-		var predicate = this.builder.getPredicate(ClassTypeInformation.from(User.class), values, DEFAULT_BINDINGS);
+		var predicate = this.builder.getPredicate(TypeInformation.of(User.class), values, DEFAULT_BINDINGS);
 
 		assertThat(predicate).hasToString("contains(user.description,Linz)");
 
-		predicate = this.builder.getPredicate(ClassTypeInformation.from(Address.class), values, DEFAULT_BINDINGS);
+		predicate = this.builder.getPredicate(TypeInformation.of(Address.class), values, DEFAULT_BINDINGS);
 
 		assertThat(predicate).hasToString("address.description = Linz");
 	}
@@ -214,7 +215,7 @@ class QuerydslPredicateBuilderUnitTests {
 		bindings.bind(wrapper.user.as(QSpecialUser.class).specialProperty)//
 				.first(QuerydslBindingsUnitTests.ContainsBinding.INSTANCE);
 
-		assertThat(builder.getPredicate(ClassTypeInformation.from(UserWrapper.class), values, bindings))//
+		assertThat(builder.getPredicate(TypeInformation.of(UserWrapper.class), values, bindings))//
 				.isEqualTo(wrapper.user.as(QSpecialUser.class).specialProperty.contains("VALUE"));
 	}
 

src/test/java/org/springframework/data/repository/core/support/DefaultRepositoryMetadataUnitTests.java

@@ -22,14 +22,12 @@ import java.util.Collection;
 import java.util.Optional;
 
 import org.junit.jupiter.api.Test;
-
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
 import org.springframework.data.repository.CrudRepository;
 import org.springframework.data.repository.Repository;
 import org.springframework.data.repository.core.RepositoryMetadata;
 import org.springframework.data.repository.util.ClassUtils;
-import org.springframework.data.util.ClassTypeInformation;
 import org.springframework.data.util.TypeInformation;
 
 /**
@@ -84,7 +82,7 @@ class DefaultRepositoryMetadataUnitTests {
 		RepositoryMetadata metadata = new DefaultRepositoryMetadata(GenericEntityRepository.class);
 		TypeInformation<?> domainType = metadata.getDomainTypeInformation();
 		assertThat(domainType.getType()).isEqualTo(GenericEntity.class);
-		assertThat(domainType.getTypeArguments()).containsExactly(ClassTypeInformation.from(String.class));
+		assertThat(domainType.getTypeArguments()).containsExactly(TypeInformation.of(String.class));
 	}
 
 	@Test

src/test/java/org/springframework/data/repository/core/support/RepositoryFactorySupportUnitTests.java

@@ -19,7 +19,6 @@ import static java.util.Collections.*;
 import static org.assertj.core.api.Assertions.*;
 import static org.mockito.ArgumentMatchers.*;
 import static org.mockito.Mockito.*;
-import static org.springframework.data.repository.core.support.DummyRepositoryFactory.*;
 
 import java.io.Serializable;
 import java.lang.reflect.Method;
@@ -40,25 +39,23 @@ import org.mockito.Mockito;
 import org.mockito.junit.jupiter.MockitoExtension;
 import org.mockito.junit.jupiter.MockitoSettings;
 import org.mockito.quality.Strictness;
-
 import org.springframework.aop.framework.ProxyFactory;
 import org.springframework.beans.factory.support.DefaultListableBeanFactory;
 import org.springframework.dao.EmptyResultDataAccessException;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.PageImpl;
-import org.springframework.data.domain.PageRequest;
 import org.springframework.data.domain.Pageable;
 import org.springframework.data.domain.Sort;
 import org.springframework.data.projection.ProjectionFactory;
 import org.springframework.data.querydsl.QuerydslPredicateExecutor;
 import org.springframework.data.repository.CrudRepository;
-import org.springframework.data.repository.PagingAndSortingRepository;
 import org.springframework.data.repository.Repository;
 import org.springframework.data.repository.RepositoryDefinition;
 import org.springframework.data.repository.core.EntityInformation;
 import org.springframework.data.repository.core.NamedQueries;
 import org.springframework.data.repository.core.RepositoryInformation;
 import org.springframework.data.repository.core.RepositoryMetadata;
+import org.springframework.data.repository.core.support.DummyRepositoryFactory.MyRepositoryQuery;
 import org.springframework.data.repository.core.support.RepositoryComposition.RepositoryFragments;
 import org.springframework.data.repository.core.support.RepositoryMethodInvocationListener.RepositoryMethodInvocation;
 import org.springframework.data.repository.core.support.RepositoryMethodInvocationListener.RepositoryMethodInvocationResult.State;

src/test/java/org/springframework/data/repository/support/DomainClassConverterIntegrationTests.java

@@ -24,7 +24,6 @@ import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.Mock;
 import org.mockito.junit.jupiter.MockitoExtension;
-
 import org.springframework.beans.BeanWrapper;
 import org.springframework.beans.BeanWrapperImpl;
 import org.springframework.beans.factory.config.SmartInstantiationAwareBeanPostProcessor;
@@ -37,7 +36,7 @@ import org.springframework.data.repository.CrudRepository;
 import org.springframework.data.repository.core.RepositoryInformation;
 import org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport;
 import org.springframework.data.repository.core.support.RepositoryFactoryInformation;
-import org.springframework.data.util.ClassTypeInformation;
+import org.springframework.data.util.TypeInformation;
 
 /**
  * Integration test for {@link DomainClassConverter}.
@@ -66,8 +65,8 @@ class DomainClassConverterIntegrationTests {
 		beanFactory.registerBeanDefinition("postProcessor", new RootBeanDefinition(PredictingProcessor.class));
 		beanFactory.registerBeanDefinition("repoFactory", new RootBeanDefinition(RepositoryFactoryBeanSupport.class));
 
-		doReturn(ClassTypeInformation.from(Person.class)).when(information).getDomainTypeInformation();
-		doReturn(ClassTypeInformation.from(Serializable.class)).when(information).getIdTypeInformation();
+		doReturn(TypeInformation.of(Person.class)).when(information).getDomainTypeInformation();
+		doReturn(TypeInformation.of(Serializable.class)).when(information).getIdTypeInformation();
 		doCallRealMethod().when(information).getDomainType();
 		doReturn(PersonRepository.class).when(factory).getObjectType();
 		doReturn(information).when(factory).getRepositoryInformation();

src/test/java/org/springframework/data/repository/util/QueryExecutionConvertersUnitTests.java

@@ -33,20 +33,18 @@ import java.io.IOException;
 import java.util.Arrays;
 import java.util.Iterator;
 import java.util.List;
-import java.util.Set;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.Future;
 
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.reactivestreams.Publisher;
-
 import org.springframework.core.convert.support.DefaultConversionService;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Slice;
-import org.springframework.data.util.ClassTypeInformation;
 import org.springframework.data.util.NullableWrapper;
 import org.springframework.data.util.Streamable;
+import org.springframework.data.util.TypeInformation;
 import org.springframework.util.concurrent.ListenableFuture;
 
 import com.google.common.base.Optional;
@@ -185,7 +183,7 @@ class QueryExecutionConvertersUnitTests {
 	void unwrapsPages() throws Exception {
 
 		var method = Sample.class.getMethod("pages");
-		var returnType = ClassTypeInformation.fromReturnTypeOf(method);
+		var returnType = TypeInformation.fromReturnTypeOf(method);
 
 		assertThat(QueryExecutionConverters.unwrapWrapperTypes(returnType).getType())
 				.isEqualTo(String.class);
@@ -207,9 +205,7 @@ class QueryExecutionConvertersUnitTests {
 		for (var methodName : Arrays.asList("tryMethod", "tryForSeqMethod")) {
 
 			var method = Sample.class.getMethod(methodName);
-
-			var type = QueryExecutionConverters
-					.unwrapWrapperTypes(ClassTypeInformation.fromReturnTypeOf(method));
+			var type = QueryExecutionConverters.unwrapWrapperTypes(TypeInformation.fromReturnTypeOf(method));
 
 			assertThat(type.getType()).isEqualTo(Sample.class);
 		}
@@ -231,9 +227,7 @@ class QueryExecutionConvertersUnitTests {
 		for (var methodName : Arrays.asList("tryMethod", "tryForSeqMethod")) {
 
 			var method = Sample.class.getMethod(methodName);
-
-			var type = QueryExecutionConverters
-					.unwrapWrapperTypes(ClassTypeInformation.fromReturnTypeOf(method));
+			var type = QueryExecutionConverters.unwrapWrapperTypes(TypeInformation.fromReturnTypeOf(method));
 
 			assertThat(type.getType()).isEqualTo(Sample.class);
 		}

src/test/java/org/springframework/data/util/ClassTypeInformationUnitTests.java

@@ -16,7 +16,8 @@
 package org.springframework.data.util;
 
 import static org.assertj.core.api.Assertions.*;
-import static org.springframework.data.util.ClassTypeInformation.from;
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.Assert.assertThat;
 
 import io.vavr.collection.Traversable;
 
@@ -34,7 +35,7 @@ import org.springframework.aop.SpringProxy;
 import org.springframework.aop.TargetSource;
 import org.springframework.aop.framework.Advised;
 import org.springframework.aop.framework.AopConfigException;
-
+import org.springframework.core.ResolvableType;
 import org.springframework.data.mapping.Person;
 import org.springframework.lang.Nullable;
 
@@ -49,7 +50,7 @@ public class ClassTypeInformationUnitTests {
 	@Test
 	public void discoversTypeForSimpleGenericField() {
 
-		TypeInformation<ConcreteType> discoverer = from(ConcreteType.class);
+		TypeInformation<ConcreteType> discoverer = TypeInformation.of(ConcreteType.class);
 
 		assertThat(discoverer.getType()).isEqualTo(ConcreteType.class);
 
@@ -63,7 +64,7 @@ public class ClassTypeInformationUnitTests {
 	@Test
 	public void discoversTypeForNestedGenericField() {
 
-		TypeInformation<ConcreteWrapper> discoverer = from(ConcreteWrapper.class);
+		TypeInformation<ConcreteWrapper> discoverer = TypeInformation.of(ConcreteWrapper.class);
 		assertThat(discoverer.getType()).isEqualTo(ConcreteWrapper.class);
 
 		assertThat(discoverer.getProperty("wrapped")).satisfies(it -> {
@@ -79,14 +80,14 @@ public class ClassTypeInformationUnitTests {
 	@SuppressWarnings("rawtypes")
 	public void discoversBoundType() {
 
-		TypeInformation<GenericTypeWithBound> information = from(GenericTypeWithBound.class);
+		TypeInformation<GenericTypeWithBound> information = TypeInformation.of(GenericTypeWithBound.class);
 		assertThat(information.getProperty("person")).satisfies(it -> assertThat(it.getType()).isEqualTo(Person.class));
 	}
 
 	@Test
 	public void discoversBoundTypeForSpecialization() {
 
-		TypeInformation<SpecialGenericTypeWithBound> information = from(SpecialGenericTypeWithBound.class);
+		TypeInformation<SpecialGenericTypeWithBound> information = TypeInformation.of(SpecialGenericTypeWithBound.class);
 		assertThat(information.getProperty("person"))
 				.satisfies(it -> assertThat(it.getType()).isEqualTo(SpecialPerson.class));
 	}
@@ -95,7 +96,7 @@ public class ClassTypeInformationUnitTests {
 	@SuppressWarnings("rawtypes")
 	public void discoversBoundTypeForNested() {
 
-		TypeInformation<AnotherGenericType> information = from(AnotherGenericType.class);
+		TypeInformation<AnotherGenericType> information = TypeInformation.of(AnotherGenericType.class);
 
 		assertThat(information.getProperty("nested"))
 				.satisfies(it -> assertThat(it.getType()).isEqualTo(GenericTypeWithBound.class));
@@ -106,7 +107,7 @@ public class ClassTypeInformationUnitTests {
 	@Test
 	public void discoversArraysAndCollections() {
 
-		TypeInformation<StringCollectionContainer> information = from(StringCollectionContainer.class);
+		TypeInformation<StringCollectionContainer> information = TypeInformation.of(StringCollectionContainer.class);
 
 		var array = information.getProperty("array");
 
@@ -132,7 +133,7 @@ public class ClassTypeInformationUnitTests {
 	@Test
 	public void discoversMapValueType() {
 
-		TypeInformation<StringMapContainer> information = from(StringMapContainer.class);
+		TypeInformation<StringMapContainer> information = TypeInformation.of(StringMapContainer.class);
 
 		var genericMap = information.getProperty("genericMap");
 
@@ -148,8 +149,8 @@ public class ClassTypeInformationUnitTests {
 	@Test
 	public void typeInfoDoesNotEqualForGenericTypesWithDifferentParent() {
 
-		TypeInformation<ConcreteWrapper> first = from(ConcreteWrapper.class);
-		TypeInformation<AnotherConcreteWrapper> second = from(AnotherConcreteWrapper.class);
+		TypeInformation<ConcreteWrapper> first = TypeInformation.of(ConcreteWrapper.class);
+		TypeInformation<AnotherConcreteWrapper> second = TypeInformation.of(AnotherConcreteWrapper.class);
 
 		assertThat(first.getProperty("wrapped").equals(second.getProperty("wrapped"))).isFalse();
 	}
@@ -157,7 +158,7 @@ public class ClassTypeInformationUnitTests {
 	@Test
 	public void handlesPropertyFieldMismatchCorrectly() {
 
-		TypeInformation<PropertyGetter> from = from(PropertyGetter.class);
+		TypeInformation<PropertyGetter> from = TypeInformation.of(PropertyGetter.class);
 
 		assertThat(from.getProperty("_name")).satisfies(it -> assertThat(it.getType()).isEqualTo(String.class));
 		assertThat(from.getProperty("name")).satisfies(it -> assertThat(it.getType()).isEqualTo(byte[].class));
@@ -166,14 +167,14 @@ public class ClassTypeInformationUnitTests {
 	@Test // DATACMNS-77
 	public void returnsSameInstanceForCachedClass() {
 
-		TypeInformation<PropertyGetter> info = from(PropertyGetter.class);
-		assertThat(from(PropertyGetter.class)).isSameAs(info);
+		TypeInformation<PropertyGetter> info = TypeInformation.of(PropertyGetter.class);
+		assertThat(TypeInformation.of(PropertyGetter.class)).isSameAs(info);
 	}
 
 	@Test // DATACMNS-39
 	public void resolvesWildCardTypeCorrectly() {
 
-		TypeInformation<ClassWithWildCardBound> information = from(ClassWithWildCardBound.class);
+		TypeInformation<ClassWithWildCardBound> information = TypeInformation.of(ClassWithWildCardBound.class);
 
 		var wildcard = information.getProperty("wildcard");
 
@@ -192,7 +193,7 @@ public class ClassTypeInformationUnitTests {
 	@Test
 	public void resolvesTypeParametersCorrectly() {
 
-		TypeInformation<ConcreteType> information = from(ConcreteType.class);
+		TypeInformation<ConcreteType> information = TypeInformation.of(ConcreteType.class);
 		var superTypeInformation = information.getSuperTypeInformation(GenericType.class);
 
 		var parameters = superTypeInformation.getTypeArguments();
@@ -204,7 +205,7 @@ public class ClassTypeInformationUnitTests {
 	@Test
 	public void resolvesNestedInheritedTypeParameters() {
 
-		TypeInformation<SecondExtension> information = from(SecondExtension.class);
+		TypeInformation<SecondExtension> information = TypeInformation.of(SecondExtension.class);
 		var superTypeInformation = information.getSuperTypeInformation(Base.class);
 
 		var parameters = superTypeInformation.getTypeArguments();
@@ -215,7 +216,7 @@ public class ClassTypeInformationUnitTests {
 	@Test
 	public void discoveresMethodParameterTypesCorrectly() throws Exception {
 
-		TypeInformation<SecondExtension> information = from(SecondExtension.class);
+		TypeInformation<SecondExtension> information = TypeInformation.of(SecondExtension.class);
 		var method = SecondExtension.class.getMethod("foo", Base.class);
 		var informations = information.getParameterTypes(method);
 		var returnTypeInformation = information.getReturnType(method);
@@ -228,51 +229,54 @@ public class ClassTypeInformationUnitTests {
 	@Test
 	public void discoversImplementationBindingCorrectlyForString() throws Exception {
 
-		TypeInformation<TypedClient> information = from(TypedClient.class);
+		TypeInformation<TypedClient> information = TypeInformation.of(TypedClient.class);
 		var method = TypedClient.class.getMethod("stringMethod", GenericInterface.class);
 
 		var parameterType = information.getParameterTypes(method).get(0);
 
-		TypeInformation<StringImplementation> stringInfo = from(StringImplementation.class);
+		TypeInformation<StringImplementation> stringInfo = TypeInformation.of(StringImplementation.class);
 		assertThat(parameterType.isAssignableFrom(stringInfo)).isTrue();
 		assertThat(stringInfo.getSuperTypeInformation(GenericInterface.class)).isEqualTo(parameterType);
-		assertThat(parameterType.isAssignableFrom(from(LongImplementation.class))).isFalse();
+		assertThat(parameterType.isAssignableFrom(TypeInformation.of(LongImplementation.class))).isFalse();
 		assertThat(parameterType
-				.isAssignableFrom(from(StringImplementation.class).getSuperTypeInformation(GenericInterface.class))).isTrue();
+				.isAssignableFrom(
+						TypeInformation.of(StringImplementation.class).getSuperTypeInformation(GenericInterface.class))).isTrue();
 	}
 
 	@Test
 	public void discoversImplementationBindingCorrectlyForLong() throws Exception {
 
-		TypeInformation<TypedClient> information = from(TypedClient.class);
+		TypeInformation<TypedClient> information = TypeInformation.of(TypedClient.class);
 		var method = TypedClient.class.getMethod("longMethod", GenericInterface.class);
 
 		var parameterType = information.getParameterTypes(method).get(0);
 
-		assertThat(parameterType.isAssignableFrom(from(StringImplementation.class))).isFalse();
-		assertThat(parameterType.isAssignableFrom(from(LongImplementation.class))).isTrue();
+		assertThat(parameterType.isAssignableFrom(TypeInformation.of(StringImplementation.class))).isFalse();
+		assertThat(parameterType.isAssignableFrom(TypeInformation.of(LongImplementation.class))).isTrue();
 		assertThat(parameterType
-				.isAssignableFrom(from(StringImplementation.class).getSuperTypeInformation(GenericInterface.class))).isFalse();
+				.isAssignableFrom(
+						TypeInformation.of(StringImplementation.class).getSuperTypeInformation(GenericInterface.class))).isFalse();
 	}
 
 	@Test
 	public void discoversImplementationBindingCorrectlyForNumber() throws Exception {
 
-		TypeInformation<TypedClient> information = from(TypedClient.class);
+		TypeInformation<TypedClient> information = TypeInformation.of(TypedClient.class);
 		var method = TypedClient.class.getMethod("boundToNumberMethod", GenericInterface.class);
 
 		var parameterType = information.getParameterTypes(method).get(0);
 
-		assertThat(parameterType.isAssignableFrom(from(StringImplementation.class))).isFalse();
-		assertThat(parameterType.isAssignableFrom(from(LongImplementation.class))).isTrue();
+		assertThat(parameterType.isAssignableFrom(TypeInformation.of(StringImplementation.class))).isFalse();
+		assertThat(parameterType.isAssignableFrom(TypeInformation.of(LongImplementation.class))).isTrue();
 		assertThat(parameterType
-				.isAssignableFrom(from(StringImplementation.class).getSuperTypeInformation(GenericInterface.class))).isFalse();
+				.isAssignableFrom(
+						TypeInformation.of(StringImplementation.class).getSuperTypeInformation(GenericInterface.class))).isFalse();
 	}
 
 	@Test
 	public void returnsComponentTypeForMultiDimensionalArrayCorrectly() {
 
-		TypeInformation<?> information = from(String[][].class);
+		TypeInformation<?> information = TypeInformation.of(String[][].class);
 
 		assertThat(information.getType()).isEqualTo(String[][].class);
 		assertThat(information.getComponentType()).satisfies(it -> assertThat(it.getType()).isEqualTo(String[].class));
@@ -282,27 +286,32 @@ public class ClassTypeInformationUnitTests {
 	@Test // DATACMNS-309
 	public void findsGetterOnInterface() {
 
-		TypeInformation<Product> information = from(Product.class);
+		TypeInformation<Product> information = TypeInformation.of(Product.class);
 
-		assertThat(information.getProperty("category.id")).isEqualTo(from(Long.class));
+		assertThat(information.getProperty("category.id")).isEqualTo(TypeInformation.of(Long.class));
 	}
 
 	@Test // DATACMNS-387
 	public void rejectsNullClass() {
-		assertThatIllegalArgumentException().isThrownBy(() -> ClassTypeInformation.from(null));
+		assertThatIllegalArgumentException().isThrownBy(() -> TypeInformation.of((Class<?>) null));
+	}
+
+	@Test // DATACMNS-387
+	public void rejectsNullResolvableType() {
+		assertThatIllegalArgumentException().isThrownBy(() -> TypeInformation.of((ResolvableType) null));
 	}
 
 	@Test // DATACMNS-422
 	public void returnsEmptyOptionalForRawTypesOnly() {
 
-		assertThat(from(MyRawIterable.class).getComponentType()).isNull();
-		assertThat(from(MyIterable.class).getComponentType()).isNotNull();
+		assertThat(TypeInformation.of(MyRawIterable.class).getComponentType()).isNull();
+		assertThat(TypeInformation.of(MyIterable.class).getComponentType()).isNotNull();
 	}
 
 	@Test // DATACMNS-440
 	public void detectsSpecialMapAsMapValueType() {
 
-		var seriously = from(SuperGenerics.class).getProperty("seriously");
+		var seriously = TypeInformation.of(SuperGenerics.class).getProperty("seriously");
 
 		// Type
 		assertThat(seriously.getType()).isEqualTo(SortedMap.class);
@@ -321,14 +330,14 @@ public class ClassTypeInformationUnitTests {
 
 	@Test // DATACMNS-446
 	public void createsToStringRepresentation() {
-		assertThat(from(SpecialPerson.class).toString())
+		assertThat(TypeInformation.of(SpecialPerson.class).toString())
 				.isEqualTo("org.springframework.data.util.ClassTypeInformationUnitTests$SpecialPerson");
 	}
 
 	@Test // DATACMNS-590
 	public void resolvesNestedGenericsToConcreteType() {
 
-		var rootType = from(ConcreteRoot.class);
+		var rootType = TypeInformation.of(ConcreteRoot.class);
 
 		assertThat(rootType.getProperty("subs").getActualType().getProperty("subSub").getType())//
 				.isEqualTo(ConcreteSubSub.class);
@@ -337,7 +346,7 @@ public class ClassTypeInformationUnitTests {
 	@Test // DATACMNS-594
 	public void considersGenericsOfTypeBounds() {
 
-		assertThat(from(ConcreteRootIntermediate.class)
+		assertThat(TypeInformation.of(ConcreteRootIntermediate.class)
 				.getProperty("intermediate.content.intermediate.content").getType())//
 						.isEqualTo(Leaf.class);
 	}
@@ -345,21 +354,21 @@ public class ClassTypeInformationUnitTests {
 	@Test // DATACMNS-783, DATACMNS-853
 	public void specializesTypeUsingTypeVariableContext() {
 
-		var root = from(Foo.class);
+		var root = TypeInformation.of(Foo.class);
 
-		assertThat(root.getProperty("abstractBar").specialize(from(Bar.class)))//
+		assertThat(root.getProperty("abstractBar").specialize(TypeInformation.of(Bar.class)))//
 				.satisfies(it -> {
 					assertThat(it.getType()).isEqualTo(Bar.class);
-							assertThat(it.getProperty("field").getType()).isEqualTo(Character.class);
-							assertThat(it.getProperty("anotherField").getType()).isEqualTo(Integer.class);
+					assertThat(it.getProperty("field").getType()).isEqualTo(Character.class);
+					assertThat(it.getProperty("anotherField").getType()).isEqualTo(Integer.class);
 				});
 	}
 
 	@Test // DATACMNS-783
 	public void usesTargetTypeDirectlyIfNoGenericsAreInvolved() {
 
-		var root = ClassTypeInformation.from(Foo.class);
-		ClassTypeInformation<?> from = ClassTypeInformation.from(Bar.class);
+		var root = TypeInformation.of(Foo.class);
+		TypeInformation<?> from = TypeInformation.of(Bar.class);
 
 		assertThat(root.getProperty("object").specialize(from)).isEqualTo(from);
 	}
@@ -367,12 +376,12 @@ public class ClassTypeInformationUnitTests {
 	@Test // DATACMNS-855
 	public void specializedTypeEqualsAndHashCode() {
 
-		var root = ClassTypeInformation.from(Foo.class);
+		var root = TypeInformation.of(Foo.class);
 
 		var abstractBar = root.getProperty("abstractBar");
 
-		assertThat(Pair.of(abstractBar.specialize(ClassTypeInformation.from(Bar.class)),
-				abstractBar.specialize(ClassTypeInformation.from(Bar.class)))).satisfies(pair -> {
+		assertThat(Pair.of(abstractBar.specialize(TypeInformation.of(Bar.class)),
+				abstractBar.specialize(TypeInformation.of(Bar.class)))).satisfies(pair -> {
 					assertThat(pair.getFirst()).isEqualTo(pair.getSecond());
 					assertThat(pair.getSecond()).isEqualTo(pair.getFirst());
 					assertThat(pair.getFirst().hashCode()).isEqualTo(pair.getSecond().hashCode());
@@ -382,7 +391,7 @@ public class ClassTypeInformationUnitTests {
 	@Test // DATACMNS-896
 	public void prefersLocalTypeMappingOverNestedWithSameGenericType() {
 
-		var information = from(Concrete.class);
+		var information = TypeInformation.of(Concrete.class);
 
 		assertThat(information.getProperty("field").getType()).isEqualTo(Nested.class);
 	}
@@ -390,7 +399,7 @@ public class ClassTypeInformationUnitTests {
 	@Test // DATACMNS-940
 	public void detectsVavrTraversableComponentType() {
 
-		var information = from(SampleTraversable.class);
+		var information = TypeInformation.of(SampleTraversable.class);
 
 		assertThat(information.getComponentType().getType()).isAssignableFrom(Integer.class);
 	}
@@ -398,7 +407,7 @@ public class ClassTypeInformationUnitTests {
 	@Test // DATACMNS-940
 	public void detectsVavrMapComponentAndValueType() {
 
-		var information = from(SampleMap.class);
+		var information = TypeInformation.of(SampleMap.class);
 
 		assertThat(information.getComponentType().getType()).isAssignableFrom(String.class);
 
@@ -408,8 +417,8 @@ public class ClassTypeInformationUnitTests {
 	@Test // DATACMNS-1138
 	public void usesTargetTypeForWildcardedBaseOnSpecialization() {
 
-		var wrapper = from(WildcardedWrapper.class);
-		var concrete = from(SomeConcrete.class);
+		var wrapper = TypeInformation.of(WildcardedWrapper.class);
+		var concrete = TypeInformation.of(SomeConcrete.class);
 
 		var property = wrapper.getRequiredProperty("wildcarded");
 
@@ -419,14 +428,14 @@ public class ClassTypeInformationUnitTests {
 	@Test // DATACMNS-1571
 	public void considersGenericsOfTypeToSpecializeToIfFullyResolved() {
 
-		TypeInformation<StoredEvent> storeEvent = ClassTypeInformation.from(StoredEvent.class);
+		TypeInformation<StoredEvent> storeEvent = TypeInformation.of(StoredEvent.class);
 		assertThat(storeEvent.getType()).isEqualTo(StoredEvent.class);
 
 		var domainEvent = (TypeInformation<DomainEvent>) storeEvent.getProperty("event");
 		assertThat(domainEvent.getType()).isEqualTo(DomainEvent.class);
 
 		var specialized = domainEvent
-				.specialize(ClassTypeInformation.from(OfferCreated.class));
+				.specialize(TypeInformation.of(OfferCreated.class));
 
 		assertThat(specialized.getType()).isEqualTo(OfferCreated.class);
 		assertThat(specialized.getProperty("aggregateId").getType()).isEqualTo(Long.class);
@@ -436,14 +445,14 @@ public class ClassTypeInformationUnitTests {
 	@Test // DATACMNS-1571
 	public void mergesGenericsFromContextAndProvidedDefaultOnSpecialization() {
 
-		TypeInformation<StoredEvent> storeEvent = ClassTypeInformation.from(StoredEvent.class);
+		TypeInformation<StoredEvent> storeEvent = TypeInformation.of(StoredEvent.class);
 		assertThat(storeEvent.getType()).isEqualTo(StoredEvent.class);
 
 		var domainEvent = (TypeInformation<DomainEvent>) storeEvent.getProperty("event");
 		assertThat(domainEvent.getType()).isEqualTo(DomainEvent.class);
 
 		var specialized = domainEvent
-				.specialize(ClassTypeInformation.from(GenericEvent.class));
+				.specialize(TypeInformation.of(GenericEvent.class));
 
 		assertThat(specialized.getType()).isEqualTo(GenericEvent.class);
 		assertThat(specialized.getProperty("aggregateId").getType()).isEqualTo(Long.class);
@@ -453,7 +462,7 @@ public class ClassTypeInformationUnitTests {
 	@Test // DATACMNS-1828
 	void discoversMapKeyAndValueTypeFromTypedMap() {
 
-		TypeInformation<TypeWithTypedMap> information = from(TypeWithTypedMap.class);
+		TypeInformation<TypeWithTypedMap> information = TypeInformation.of(TypeWithTypedMap.class);
 
 		var typedMap = information.getProperty("typedMap");
 
@@ -477,20 +486,21 @@ public class ClassTypeInformationUnitTests {
 	}
 
 	@Test // GH-2485
-	public void proxyTypeInformationShouldNotEqualUserClassTypeInfo () {
+	public void proxyTypeInformationShouldNotEqualUserClassTypeInfo() {
 
-		ClassTypeInformation<Leaf> typeInfoLeaf = from(Leaf.class);
-		ClassTypeInformation<Leaf$$SpringProxy$873fa2e> typeInformationLeafProxy = from(Leaf$$SpringProxy$873fa2e.class);
+		var typeInfoLeaf = TypeInformation.of(Leaf.class);
+		var typeInformationLeafProxy = TypeInformation
+				.of(Leaf$$SpringProxy$873fa2e.class);
 
 		assertThat(typeInfoLeaf).isNotEqualTo(typeInformationLeafProxy);
 	}
 
-	@Test  // GH-2312
+	@Test // GH-2312
 	void typeInfoShouldPreserveGenericParameter() {
 
-		TypeInformation<Wrapper> wrapperTypeInfo = ClassTypeInformation.from(Wrapper.class);
-		TypeInformation<?> fieldTypeInfo = wrapperTypeInfo.getProperty("field");
-		TypeInformation<?> valueTypeInfo = fieldTypeInfo.getProperty("value");
+		var wrapperTypeInfo = TypeInformation.of(Wrapper.class);
+		var fieldTypeInfo = wrapperTypeInfo.getProperty("field");
+		var valueTypeInfo = fieldTypeInfo.getProperty("value");
 
 		assertThat(valueTypeInfo.getType()).isEqualTo(Leaf.class);
 	}
@@ -706,7 +716,7 @@ public class ClassTypeInformationUnitTests {
 
 	static class SomeConcrete extends SomeGeneric<String> {}
 
-	static class GenericExtendingSomeGeneric<T> extends SomeGeneric<T> { }
+	static class GenericExtendingSomeGeneric<T> extends SomeGeneric<T> {}
 
 	static class Wrapper {
 		GenericExtendingSomeGeneric<Leaf> field;

src/test/java/org/springframework/data/util/DataCmns511Tests.java

@@ -33,7 +33,7 @@ public class DataCmns511Tests {
 	@Test // DATACMNS-511
 	public void detectsEqualTypeVariableTypeInformationInstances() {
 
-		var createdBy = ClassTypeInformation.from(AbstractRole.class).getProperty("createdBy");
+		var createdBy = TypeInformation.of(AbstractRole.class).getProperty("createdBy");
 
 		assertThat(createdBy.getProperty("roles").getActualType().getProperty("createdBy"))//
 				.satisfies(second -> {

src/test/java/org/springframework/data/util/TypeDiscovererUnitTests.java

@@ -16,13 +16,10 @@
 package org.springframework.data.util;
 
 import static org.assertj.core.api.Assertions.*;
-import static org.springframework.data.util.ClassTypeInformation.from;
 
-import java.lang.reflect.Field;
-import java.lang.reflect.Type;
-import java.lang.reflect.TypeVariable;
 import java.util.Collection;
 import java.util.Collections;
+import java.util.EnumMap;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Locale;
@@ -31,8 +28,8 @@ import java.util.Set;
 
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.ExtendWith;
-import org.mockito.Mock;
 import org.mockito.junit.jupiter.MockitoExtension;
+import org.springframework.beans.factory.annotation.Autowire;
 import org.springframework.core.ResolvableType;
 import org.springframework.util.ReflectionUtils;
 
@@ -45,11 +42,6 @@ import org.springframework.util.ReflectionUtils;
 @ExtendWith(MockitoExtension.class)
 public class TypeDiscovererUnitTests {
 
-	private static final Map<TypeVariable<?>, Type> EMPTY_MAP = Collections.emptyMap();
-
-	@Mock Map<TypeVariable<?>, Type> firstMap;
-	@Mock Map<TypeVariable<?>, Type> secondMap;
-
 	@Test
 	void rejectsNullType() {
 		assertThatIllegalArgumentException().isThrownBy(() -> new TypeDiscoverer<>((ResolvableType) null));
@@ -58,27 +50,17 @@ public class TypeDiscovererUnitTests {
 	@Test
 	void isNotEqualIfTypesDiffer() {
 
-		var objectTypeInfo = new TypeDiscoverer<Object>(Object.class);
-		var stringTypeInfo = new TypeDiscoverer<String>(String.class);
+		var objectTypeInfo = TypeInformation.of(Object.class);
+		var stringTypeInfo = TypeInformation.of(String.class);
 
 		assertThat(objectTypeInfo.equals(stringTypeInfo)).isFalse();
 	}
 
-//	@Test
-//	void isNotEqualIfTypeVariableMapsDiffer() {
-//
-//		assertThat(firstMap.equals(secondMap)).isFalse();
-//
-//		var first = new TypeDiscoverer<Object>(Object.class);
-//		var second = new TypeDiscoverer<Object>(Object.class);
-//
-//		assertThat(first.equals(second)).isFalse();
-//	}
-
 	@Test
 	void dealsWithTypesReferencingThemselves() {
 
-		TypeInformation<SelfReferencing> information = from(SelfReferencing.class);
+		var information = TypeInformation.of(SelfReferencing.class);
+
 		var first = information.getProperty("parent").getMapValueType();
 		var second = first.getProperty("map").getMapValueType();
 
@@ -88,7 +70,7 @@ public class TypeDiscovererUnitTests {
 	@Test
 	void dealsWithTypesReferencingThemselvesInAMap() {
 
-		TypeInformation<SelfReferencingMap> information = from(SelfReferencingMap.class);
+		var information = TypeInformation.of(SelfReferencingMap.class);
 		var property = information.getProperty("map");
 
 		assertThat(property.getMapValueType()).isEqualTo(information);
@@ -97,7 +79,7 @@ public class TypeDiscovererUnitTests {
 	@Test
 	void returnsComponentAndValueTypesForMapExtensions() {
 
-		TypeInformation<?> discoverer = new TypeDiscoverer<>(CustomMap.class);
+		TypeInformation<?> discoverer = TypeInformation.of(CustomMap.class);
 
 		assertThat(discoverer.getMapValueType().getType()).isEqualTo(Locale.class);
 		assertThat(discoverer.getComponentType().getType()).isEqualTo(String.class);
@@ -106,7 +88,7 @@ public class TypeDiscovererUnitTests {
 	@Test
 	void returnsComponentTypeForCollectionExtension() {
 
-		var discoverer = new TypeDiscoverer<CustomCollection>(CustomCollection.class);
+		var discoverer = TypeInformation.of(CustomCollection.class);
 
 		assertThat(discoverer.getComponentType().getType()).isEqualTo(String.class);
 	}
@@ -114,7 +96,7 @@ public class TypeDiscovererUnitTests {
 	@Test
 	void returnsComponentTypeForArrays() {
 
-		var discoverer = new TypeDiscoverer<String[]>(String[].class);
+		var discoverer = TypeInformation.of(String[].class);
 
 		assertThat(discoverer.getComponentType().getType()).isEqualTo(String.class);
 	}
@@ -122,7 +104,7 @@ public class TypeDiscovererUnitTests {
 	@Test // DATACMNS-57
 	void discoveresConstructorParameterTypesCorrectly() throws NoSuchMethodException, SecurityException {
 
-		var discoverer = new TypeDiscoverer<GenericConstructors>(GenericConstructors.class);
+		var discoverer = TypeInformation.of(GenericConstructors.class);
 		var constructor = GenericConstructors.class.getConstructor(List.class, Locale.class);
 		var types = discoverer.getParameterTypes(constructor);
 
@@ -135,7 +117,7 @@ public class TypeDiscovererUnitTests {
 	@SuppressWarnings("rawtypes")
 	void returnsNullForComponentAndValueTypesForRawMaps() {
 
-		var discoverer = new TypeDiscoverer<Map>(Map.class);
+		var discoverer = TypeInformation.of(Map.class);
 
 		assertThat(discoverer.getComponentType()).isNotNull();
 		assertThat(discoverer.getMapValueType()).isNotNull();
@@ -145,8 +127,8 @@ public class TypeDiscovererUnitTests {
 	@SuppressWarnings("rawtypes")
 	void doesNotConsiderTypeImplementingIterableACollection() {
 
-		var discoverer = new TypeDiscoverer<Person>(Person.class);
-		TypeInformation reference = from(Address.class);
+		var discoverer = TypeInformation.of(Person.class);
+		TypeInformation reference = TypeInformation.of(Address.class);
 
 		var addresses = discoverer.getProperty("addresses");
 
@@ -166,7 +148,7 @@ public class TypeDiscovererUnitTests {
 	@Test // DATACMNS-1342, DATACMNS-1430
 	void considersStreamableToBeCollectionLike() {
 
-		TypeInformation<SomeStreamable> type = from(SomeStreamable.class);
+		TypeInformation<SomeStreamable> type = TypeInformation.of(SomeStreamable.class);
 
 		assertThat(type.isCollectionLike()).isTrue();
 		assertThat(type.getRequiredProperty("streamable").isCollectionLike()).isTrue();
@@ -175,7 +157,7 @@ public class TypeDiscovererUnitTests {
 	@Test // DATACMNS-1419
 	void detectsSubTypes() {
 
-		var type = from(Set.class);
+		var type = TypeInformation.of(Set.class);
 
 		assertThat(type.isSubTypeOf(Collection.class)).isTrue();
 		assertThat(type.isSubTypeOf(Set.class)).isFalse();
@@ -196,124 +178,115 @@ public class TypeDiscovererUnitTests {
 
 	}
 
-	@Test
-		// GH-2312
+	@Test // GH-2312
 	void sameFieldNoGenericsInfoShouldBeEqual() {
 
-		Field addresses = ReflectionUtils.findField(Person.class, "addresses");
+		var addresses = ReflectionUtils.findField(Person.class, "addresses");
 
-		TypeDiscoverer<Object> discoverer1 = new TypeDiscoverer<>(ResolvableType.forField(addresses, Person.class));
-		TypeDiscoverer<Object> discoverer2 = new TypeDiscoverer<>(ResolvableType.forField(addresses, Person.class));
+		var discoverer1 = TypeInformation.of(ResolvableType.forField(addresses, Person.class));
+		var discoverer2 = TypeInformation.of(ResolvableType.forField(addresses, Person.class));
 
 		assertThat(discoverer1).isEqualTo(discoverer2);
 		assertThat(discoverer1.hashCode()).isEqualTo(discoverer2.hashCode());
 	}
 
-	@Test
-		// GH-2312
+	@Test // GH-2312
 	void sameFieldNoGenericsWhenInherited() {
 
-		Field addresses = ReflectionUtils.findField(Person.class, "addresses");
-		TypeDiscoverer<Object> discoverer1 = new TypeDiscoverer<>(ResolvableType.forField(addresses, Person.class));
-		TypeDiscoverer<Object> discoverer2 = new TypeDiscoverer<>(ResolvableType.forField(addresses, TypeExtendingPerson.class));
+		var addresses = ReflectionUtils.findField(Person.class, "addresses");
+
+		var discoverer1 = TypeInformation.of(ResolvableType.forField(addresses, Person.class));
+		var discoverer2 = TypeInformation.of(ResolvableType.forField(addresses, TypeExtendingPerson.class));
 
 		assertThat(discoverer1).isEqualTo(discoverer2);
 		assertThat(discoverer1.hashCode()).isEqualTo(discoverer2.hashCode());
 	}
 
-	@Test
-		// GH-2312
+	@Test // GH-2312
 	void sameFieldNoGenericsOnDifferentTypes() {
 
-		Field addresses1 = ReflectionUtils.findField(Person.class, "addresses");
-		TypeDiscoverer<Object> discoverer1 = new TypeDiscoverer<>(ResolvableType.forField(addresses1, Person.class));
+		var addresses1 = ReflectionUtils.findField(Person.class, "addresses");
+		var discoverer1 = TypeInformation.of(ResolvableType.forField(addresses1, Person.class));
 
-		Field addresses2 = ReflectionUtils.findField(OtherPerson.class, "addresses");
-		TypeDiscoverer<Object> discoverer2 = new TypeDiscoverer<>(ResolvableType.forField(addresses2, OtherPerson.class));
+		var addresses2 = ReflectionUtils.findField(OtherPerson.class, "addresses");
+		var discoverer2 = TypeInformation.of(ResolvableType.forField(addresses2, OtherPerson.class));
 
 		assertThat(discoverer1).isEqualTo(discoverer2);
 		assertThat(discoverer1.hashCode()).isEqualTo(discoverer2.hashCode());
 	}
 
-	@Test
-		// GH-2312
+	@Test // GH-2312
 	void sameFieldWithGenerics() {
 
-		Field field1 = ReflectionUtils.findField(GenericPerson.class, "value");
-		TypeDiscoverer<Object> discoverer1 = new TypeDiscoverer<>(ResolvableType.forField(field1, GenericPerson.class));
+		var field1 = ReflectionUtils.findField(GenericPerson.class, "value");
+		var discoverer1 = TypeInformation.of(ResolvableType.forField(field1, GenericPerson.class));
 
-		Field field2 = ReflectionUtils.findField(GenericPerson.class, "value");
-		TypeDiscoverer<Object> discoverer2 = new TypeDiscoverer<>(ResolvableType.forField(field2, GenericPerson.class));
+		var field2 = ReflectionUtils.findField(GenericPerson.class, "value");
+		var discoverer2 = TypeInformation.of(ResolvableType.forField(field2, GenericPerson.class));
 
 		assertThat(discoverer1).isEqualTo(discoverer2);
 		assertThat(discoverer1.hashCode()).isEqualTo(discoverer2.hashCode());
 	}
 
-	@Test
-		// GH-2312
+	@Test // GH-2312
 	void sameFieldWithGenericsSet() {
 
-		Field field1 = ReflectionUtils.findField(GenericPerson.class, "value");
-		TypeDiscoverer<Object> discoverer1 = new TypeDiscoverer<>(ResolvableType.forField(field1, TypeExtendingGenericPersonWithObject.class));
+		var field1 = ReflectionUtils.findField(GenericPerson.class, "value");
+		var discoverer1 = TypeInformation.of(ResolvableType.forField(field1, TypeExtendingGenericPersonWithObject.class));
 
-		Field field2 = ReflectionUtils.findField(GenericPerson.class, "value");
-		TypeDiscoverer<Object> discoverer2 = new TypeDiscoverer<>(ResolvableType.forField(field2, TypeExtendingGenericPersonWithObject.class));
+		var field2 = ReflectionUtils.findField(GenericPerson.class, "value");
+		var discoverer2 = TypeInformation.of(ResolvableType.forField(field2, TypeExtendingGenericPersonWithObject.class));
 
 		assertThat(discoverer1).isEqualTo(discoverer2);
 		assertThat(discoverer1.hashCode()).isEqualTo(discoverer2.hashCode());
 	}
 
-	@Test
-		// GH-2312
+	@Test // GH-2312
 	void sameFieldWithDifferentGenericsSet() {
 
-		Field field1 = ReflectionUtils.findField(GenericPerson.class, "value");
-		TypeDiscoverer<Object> discoverer1 = new TypeDiscoverer<>(ResolvableType.forField(field1, TypeExtendingGenericPersonWithObject.class));
+		var field1 = ReflectionUtils.findField(GenericPerson.class, "value");
+		var discoverer1 = TypeInformation.of(ResolvableType.forField(field1, TypeExtendingGenericPersonWithObject.class));
 
-		Field field2 = ReflectionUtils.findField(GenericPerson.class, "value");
-		TypeDiscoverer<Object> discoverer2 = new TypeDiscoverer<>(ResolvableType.forField(field2, TypeExtendingGenericPersonWithAddress.class));
+		var field2 = ReflectionUtils.findField(GenericPerson.class, "value");
+		var discoverer2 = TypeInformation.of(ResolvableType.forField(field2, TypeExtendingGenericPersonWithAddress.class));
 
 		assertThat(discoverer1).isNotEqualTo(discoverer2);
 		assertThat(discoverer1.hashCode()).isNotEqualTo(discoverer2.hashCode());
 	}
 
-	@Test
-		// GH-2312
+	@Test // GH-2312
 	void sameFieldWithDifferentNoGenericsAndObjectOneSet() {
 
-		Field field1 = ReflectionUtils.findField(GenericPerson.class, "value");
-		TypeDiscoverer<Object> discoverer1 = new TypeDiscoverer<>(ResolvableType.forField(field1, GenericPerson.class));
+		var field1 = ReflectionUtils.findField(GenericPerson.class, "value");
+		var discoverer1 = TypeInformation.of(ResolvableType.forField(field1, GenericPerson.class));
 
-		Field field2 = ReflectionUtils.findField(GenericPerson.class, "value");
-		TypeDiscoverer<Object> discoverer2 = new TypeDiscoverer<>(ResolvableType.forField(field2, TypeExtendingGenericPersonWithObject.class));
+		var field2 = ReflectionUtils.findField(GenericPerson.class, "value");
+		var discoverer2 = TypeInformation.of(ResolvableType.forField(field2, TypeExtendingGenericPersonWithObject.class));
 
 		assertThat(discoverer1).isEqualTo(discoverer2); // TODO: notEquals
 		assertThat(discoverer1.hashCode()).isEqualTo(discoverer2.hashCode());
 	}
 
-	@Test
-		// GH-2312
+	@Test // GH-2312
 	void genericFieldOfType() {
 
-		Field field = ReflectionUtils.findField(GenericPerson.class, "value");
-		TypeDiscoverer<Object> discoverer = new TypeDiscoverer<>(ResolvableType.forField(field, TypeExtendingGenericPersonWithAddress.class));
+		var field = ReflectionUtils.findField(GenericPerson.class, "value");
+		var discoverer = TypeInformation.of(ResolvableType.forField(field, TypeExtendingGenericPersonWithAddress.class));
 
-		assertThat(discoverer).isEqualTo(ClassTypeInformation.from(Address.class));
-		assertThat(discoverer.hashCode()).isEqualTo(ClassTypeInformation.from(Address.class).hashCode());
+		assertThat(discoverer).isEqualTo(TypeInformation.of(Address.class));
+		assertThat(discoverer.hashCode()).isEqualTo(TypeInformation.of(Address.class).hashCode());
 	}
 
 	@Test // #2511
 	void considerVavrMapToBeAMap() {
 
-		var type = from(io.vavr.collection.Map.class);
-
-		assertThat(type.isMap()).isTrue();
+		assertThat(TypeInformation.of(io.vavr.collection.Map.class).isMap()).isTrue();
 	}
 
 	@Test // #2517
 	void returnsComponentAndValueTypesForVavrMapExtensions() {
 
-		var discoverer = new TypeDiscoverer<>(CustomVavrMap.class);
+		var discoverer = TypeInformation.of(CustomVavrMap.class);
 
 		assertThat(discoverer.getMapValueType().getType()).isEqualTo(Locale.class);
 		assertThat(discoverer.getComponentType().getType()).isEqualTo(String.class);
@@ -321,26 +294,36 @@ public class TypeDiscovererUnitTests {
 
 	@Test // #2511
 	void considerVavrSetToBeCollectionLike() {
-
-		var type = from(io.vavr.collection.Set.class);
-
-		assertThat(type.isCollectionLike()).isTrue();
+		assertThat(TypeInformation.of(io.vavr.collection.Set.class).isCollectionLike()).isTrue();
 	}
 
 	@Test // #2511
 	void considerVavrSeqToBeCollectionLike() {
-
-		var type = from(io.vavr.collection.Seq.class);
-
-		assertThat(type.isCollectionLike()).isTrue();
+		assertThat(TypeInformation.of(io.vavr.collection.Seq.class).isCollectionLike()).isTrue();
 	}
 
 	@Test // #2511
 	void considerVavrListToBeCollectionLike() {
+		assertThat(TypeInformation.of(io.vavr.collection.List.class).isCollectionLike()).isTrue();
+	}
 
-		var type = from(io.vavr.collection.List.class);
+	@Test
+	void typeInfoShouldPreserveGenericParameter() {
 
-		assertThat(type.isCollectionLike()).isTrue();
+		TypeInformation<Wrapper> wrapperTypeInfo = TypeInformation.of(Wrapper.class);
+		TypeInformation<?> fieldTypeInfo = wrapperTypeInfo.getProperty("field");
+		TypeInformation<?> valueTypeInfo = fieldTypeInfo.getProperty("value");
+
+		assertThat(valueTypeInfo.getType()).isEqualTo(Leaf.class);
+	}
+
+	@Test
+	void detectsMapKeyAndValueOnEnumMaps() {
+
+		TypeInformation<?> map = TypeInformation.of(EnumMapWrapper.class).getProperty("map");
+
+		assertThat(map.getComponentType().getType()).isEqualTo(Autowire.class);
+		assertThat(map.getMapValueType().getType()).isEqualTo(String.class);
 	}
 
 	class Person {
@@ -369,7 +352,6 @@ public class TypeDiscovererUnitTests {
 
 	}
 
-
 	abstract class Addresses implements Iterable<Address> {
 
 	}
@@ -415,4 +397,22 @@ public class TypeDiscovererUnitTests {
 	}
 
 	interface CustomVavrMap extends io.vavr.collection.Map<String, Locale> {}
+
+	// #2312
+
+	class SomeGeneric<T> {
+		T value;
+	}
+
+	class GenericExtendingSomeGeneric<T> extends SomeGeneric<T> {}
+
+	class Wrapper {
+		GenericExtendingSomeGeneric<Leaf> field;
+	}
+
+	class Leaf {}
+
+	class EnumMapWrapper {
+		EnumMap<Autowire, String> map;
+	}
 }

src/test/java/org/springframework/data/web/querydsl/QuerydslPredicateArgumentResolverUnitTests.java

@@ -16,7 +16,7 @@
 package org.springframework.data.web.querydsl;
 
 import static org.assertj.core.api.Assertions.*;
-import static org.springframework.data.web.querydsl.QuerydslPredicateArgumentResolver.*;
+import static org.springframework.data.web.querydsl.QuerydslPredicateArgumentResolverSupport.*;
 
 import java.lang.annotation.ElementType;
 import java.lang.annotation.Retention;
@@ -26,7 +26,6 @@ import java.util.Optional;
 
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
-
 import org.springframework.core.MethodParameter;
 import org.springframework.core.annotation.AliasFor;
 import org.springframework.core.annotation.MergedAnnotation;
@@ -39,7 +38,6 @@ import org.springframework.data.querydsl.binding.QuerydslBinderCustomizer;
 import org.springframework.data.querydsl.binding.QuerydslBindings;
 import org.springframework.data.querydsl.binding.QuerydslBindingsFactory;
 import org.springframework.data.querydsl.binding.QuerydslPredicate;
-import org.springframework.data.util.ClassTypeInformation;
 import org.springframework.data.util.TypeInformation;
 import org.springframework.hateoas.EntityModel;
 import org.springframework.http.HttpEntity;
@@ -210,15 +208,15 @@ class QuerydslPredicateArgumentResolverUnitTests {
 		TypeInformation<?> type = ReflectionTestUtils.invokeMethod(resolver, "extractTypeInfo",
 				getMethodParameterFor("predicateWithoutAnnotation", Predicate.class), MergedAnnotation.missing());
 
-		assertThat(type).isEqualTo(ClassTypeInformation.from(User.class));
+		assertThat(type).isEqualTo(TypeInformation.of(User.class));
 	}
 
 	@Test // DATACMNS-669
 	@SuppressWarnings("rawtypes")
 	void detectsDomainTypesCorrectly() {
 
-		TypeInformation USER_TYPE = ClassTypeInformation.from(User.class);
-		TypeInformation MODELA_AND_VIEW_TYPE = ClassTypeInformation.from(ModelAndView.class);
+		TypeInformation USER_TYPE = TypeInformation.of(User.class);
+		TypeInformation MODELA_AND_VIEW_TYPE = TypeInformation.of(ModelAndView.class);
 
 		assertThat(extractTypeInfo(getMethodParameterFor("forEntity"), MergedAnnotation.missing())).isEqualTo(USER_TYPE);
 		assertThat(extractTypeInfo(getMethodParameterFor("forResourceOfUser"), MergedAnnotation.missing()))