Use consistent wording in precondition error messages

spring-beans/src/main/java/org/springframework/beans/factory/config/RuntimeBeanReference.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -82,7 +82,7 @@ public class RuntimeBeanReference implements BeanReference {
 	 * @since 5.2
 	 */
 	public RuntimeBeanReference(Class<?> beanType, boolean toParent) {
-		Assert.notNull(beanType, "'beanType' must not be empty");
+		Assert.notNull(beanType, "'beanType' must not be null");
 		this.beanName = beanType.getName();
 		this.beanType = beanType;
 		this.toParent = toParent;

spring-beans/src/main/java/org/springframework/beans/factory/support/AbstractBeanFactory.java

@@ -1054,7 +1054,7 @@ public abstract class AbstractBeanFactory extends FactoryBeanRegistrySupport imp
 
 	@Override
 	public void setApplicationStartup(ApplicationStartup applicationStartup) {
-		Assert.notNull(applicationStartup, "applicationStartup should not be null");
+		Assert.notNull(applicationStartup, "applicationStartup must not be null");
 		this.applicationStartup = applicationStartup;
 	}
 

spring-context/src/main/java/org/springframework/context/support/AbstractApplicationContext.java

@@ -439,7 +439,7 @@ public abstract class AbstractApplicationContext extends DefaultResourceLoader
 
 	@Override
 	public void setApplicationStartup(ApplicationStartup applicationStartup) {
-		Assert.notNull(applicationStartup, "applicationStartup should not be null");
+		Assert.notNull(applicationStartup, "applicationStartup must not be null");
 		this.applicationStartup = applicationStartup;
 	}
 

spring-context/src/main/java/org/springframework/scheduling/annotation/ScheduledAnnotationBeanPostProcessor.java

@@ -159,7 +159,7 @@ public class ScheduledAnnotationBeanPostProcessor
 	 * @since 5.1
 	 */
 	public ScheduledAnnotationBeanPostProcessor(ScheduledTaskRegistrar registrar) {
-		Assert.notNull(registrar, "ScheduledTaskRegistrar is required");
+		Assert.notNull(registrar, "ScheduledTaskRegistrar must not be null");
 		this.registrar = registrar;
 	}
 

spring-core-test/src/main/java/org/springframework/aot/agent/InvocationsRecorderClassTransformer.java

@@ -44,8 +44,8 @@ class InvocationsRecorderClassTransformer implements ClassFileTransformer {
 	private final String[] ignoredPackages;
 
 	public InvocationsRecorderClassTransformer(String[] instrumentedPackages, String[] ignoredPackages) {
-		Assert.notNull(instrumentedPackages, "instrumentedPackages should not be null");
+		Assert.notNull(instrumentedPackages, "instrumentedPackages must not be null");
-		Assert.notNull(ignoredPackages, "ignoredPackages should not be null");
+		Assert.notNull(ignoredPackages, "ignoredPackages must not be null");
 		this.instrumentedPackages = rewriteToAsmFormat(instrumentedPackages);
 		this.ignoredPackages = rewriteToAsmFormat(ignoredPackages);
 	}

spring-core-test/src/main/java/org/springframework/aot/test/agent/RuntimeHintsInvocationsAssert.java

@@ -74,7 +74,7 @@ public class RuntimeHintsInvocationsAssert extends AbstractAssert<RuntimeHintsIn
 	 * @throws AssertionError if any of the recorded invocations has no match in the provided hints
 	 */
 	public void match(RuntimeHints runtimeHints) {
-		Assert.notNull(runtimeHints, "RuntimeHints should not be null");
+		Assert.notNull(runtimeHints, "RuntimeHints must not be null");
 		configureRuntimeHints(runtimeHints);
 		List<RecordedInvocation> noMatchInvocations =
 				this.actual.recordedInvocations().filter(invocation -> !invocation.matches(runtimeHints)).toList();
@@ -84,7 +84,7 @@ public class RuntimeHintsInvocationsAssert extends AbstractAssert<RuntimeHintsIn
 	}
 
 	public ListAssert<RecordedInvocation> notMatching(RuntimeHints runtimeHints) {
-		Assert.notNull(runtimeHints, "RuntimeHints should not be null");
+		Assert.notNull(runtimeHints, "RuntimeHints must not be null");
 		configureRuntimeHints(runtimeHints);
 		return ListAssert.assertThatStream(this.actual.recordedInvocations()
 				.filter(invocation -> !invocation.matches(runtimeHints)));

spring-core-test/src/main/java/org/springframework/aot/test/agent/RuntimeHintsRecorder.java

@@ -48,7 +48,7 @@ public final class RuntimeHintsRecorder {
 	 * @return the recorded invocations
 	 */
 	public synchronized static RuntimeHintsInvocations record(Runnable action) {
-		Assert.notNull(action, "Runnable action should not be null");
+		Assert.notNull(action, "Runnable action must not be null");
 		Assert.isTrue(RuntimeHintsAgent.isLoaded(), "RuntimeHintsAgent should be loaded in the current JVM");
 		RuntimeHintsRecorder recorder = new RuntimeHintsRecorder();
 		RecordedInvocationsPublisher.addListener(recorder.listener);

spring-core/src/main/java/org/springframework/aot/hint/predicate/ReflectionHintsPredicates.java

@@ -51,6 +51,7 @@ public class ReflectionHintsPredicates {
 	ReflectionHintsPredicates() {
 	}
 
+
 	/**
 	 * Return a predicate that checks whether a reflection hint is registered for the given type.
 	 * <p>The returned type exposes additional methods that refine the predicate behavior.
@@ -58,7 +59,7 @@ public class ReflectionHintsPredicates {
 	 * @return the {@link RuntimeHints} predicate
 	 */
 	public TypeHintPredicate onType(TypeReference typeReference) {
-		Assert.notNull(typeReference, "'typeReference' should not be null");
+		Assert.notNull(typeReference, "'typeReference' must not be null");
 		return new TypeHintPredicate(typeReference);
 	}
 
@@ -69,7 +70,7 @@ public class ReflectionHintsPredicates {
 	 * @return the {@link RuntimeHints} predicate
 	 */
 	public TypeHintPredicate onType(Class<?> type) {
-		Assert.notNull(type, "'type' should not be null");
+		Assert.notNull(type, "'type' must not be null");
 		return new TypeHintPredicate(TypeReference.of(type));
 	}
 
@@ -81,7 +82,7 @@ public class ReflectionHintsPredicates {
 	 * @return the {@link RuntimeHints} predicate
 	 */
 	public ConstructorHintPredicate onConstructor(Constructor<?> constructor) {
-		Assert.notNull(constructor, "'constructor' should not be null");
+		Assert.notNull(constructor, "'constructor' must not be null");
 		return new ConstructorHintPredicate(constructor);
 	}
 
@@ -93,7 +94,7 @@ public class ReflectionHintsPredicates {
 	 * @return the {@link RuntimeHints} predicate
 	 */
 	public MethodHintPredicate onMethod(Method method) {
-		Assert.notNull(method, "'method' should not be null");
+		Assert.notNull(method, "'method' must not be null");
 		return new MethodHintPredicate(method);
 	}
 
@@ -108,8 +109,8 @@ public class ReflectionHintsPredicates {
 	 * @throws IllegalArgumentException if the method cannot be found or if multiple methods are found with the same name.
 	 */
 	public MethodHintPredicate onMethod(Class<?> type, String methodName) {
-		Assert.notNull(type, "'type' should not be null");
+		Assert.notNull(type, "'type' must not be null");
-		Assert.hasText(methodName, "'methodName' should not be empty");
+		Assert.hasText(methodName, "'methodName' must not be empty");
 		return new MethodHintPredicate(getMethod(type, methodName));
 	}
 
@@ -125,8 +126,8 @@ public class ReflectionHintsPredicates {
 	 * @throws IllegalArgumentException if the method cannot be found or if multiple methods are found with the same name.
 	 */
 	public MethodHintPredicate onMethod(String className, String methodName) throws ClassNotFoundException {
-		Assert.hasText(className, "'className' should not be empty");
+		Assert.hasText(className, "'className' must not be empty");
-		Assert.hasText(methodName, "'methodName' should not be empty");
+		Assert.hasText(methodName, "'methodName' must not be empty");
 		return onMethod(Class.forName(className), methodName);
 	}
 
@@ -155,8 +156,8 @@ public class ReflectionHintsPredicates {
 	 * @throws IllegalArgumentException if a field cannot be found with the given name.
 	 */
 	public FieldHintPredicate onField(Class<?> type, String fieldName) {
-		Assert.notNull(type, "'type' should not be null");
+		Assert.notNull(type, "'type' must not be null");
-		Assert.hasText(fieldName, "'fieldName' should not be empty");
+		Assert.hasText(fieldName, "'fieldName' must not be empty");
 		Field field = ReflectionUtils.findField(type, fieldName);
 		if (field == null) {
 			throw new IllegalArgumentException("No field named '%s' on class %s".formatted(fieldName, type.getName()));
@@ -176,8 +177,8 @@ public class ReflectionHintsPredicates {
 	 * @throws IllegalArgumentException if a field cannot be found with the given name.
 	 */
 	public FieldHintPredicate onField(String className, String fieldName) throws ClassNotFoundException {
-		Assert.hasText(className, "'className' should not be empty");
+		Assert.hasText(className, "'className' must not be empty");
-		Assert.hasText(fieldName, "'fieldName' should not be empty");
+		Assert.hasText(fieldName, "'fieldName' must not be empty");
 		return onField(Class.forName(className), fieldName);
 	}
 
@@ -189,7 +190,7 @@ public class ReflectionHintsPredicates {
 	 * @return the {@link RuntimeHints} predicate
 	 */
 	public FieldHintPredicate onField(Field field) {
-		Assert.notNull(field, "'field' should not be null");
+		Assert.notNull(field, "'field' must not be null");
 		return new FieldHintPredicate(field);
 	}
 
@@ -218,7 +219,7 @@ public class ReflectionHintsPredicates {
 		 * @return the refined {@link RuntimeHints} predicate
 		 */
 		public Predicate<RuntimeHints> withMemberCategory(MemberCategory memberCategory) {
-			Assert.notNull(memberCategory, "'memberCategory' should not be null");
+			Assert.notNull(memberCategory, "'memberCategory' must not be null");
 			return this.and(hints -> getTypeHint(hints).getMemberCategories().contains(memberCategory));
 		}
 
@@ -228,7 +229,7 @@ public class ReflectionHintsPredicates {
 		 * @return the refined {@link RuntimeHints} predicate
 		 */
 		public Predicate<RuntimeHints> withMemberCategories(MemberCategory... memberCategories) {
-			Assert.notEmpty(memberCategories, "'memberCategories' should not be empty");
+			Assert.notEmpty(memberCategories, "'memberCategories' must not be empty");
 			return this.and(hints -> getTypeHint(hints).getMemberCategories().containsAll(Arrays.asList(memberCategories)));
 		}
 
@@ -238,7 +239,7 @@ public class ReflectionHintsPredicates {
 		 * @return the refined {@link RuntimeHints} predicate
 		 */
 		public Predicate<RuntimeHints> withAnyMemberCategory(MemberCategory... memberCategories) {
-			Assert.notEmpty(memberCategories, "'memberCategories' should not be empty");
+			Assert.notEmpty(memberCategories, "'memberCategories' must not be empty");
 			return this.and(hints -> Arrays.stream(memberCategories)
 					.anyMatch(memberCategory -> getTypeHint(hints).getMemberCategories().contains(memberCategory)));
 		}

spring-core/src/main/java/org/springframework/aot/hint/predicate/SerializationHintsPredicates.java

@@ -35,6 +35,7 @@ public class SerializationHintsPredicates {
 	SerializationHintsPredicates() {
 	}
 
+
 	/**
 	 * Return a predicate that checks whether a {@link SerializationHints
 	 * serialization hint} is registered for the given type.
@@ -43,7 +44,7 @@ public class SerializationHintsPredicates {
 	 * @see java.lang.reflect.Proxy
 	 */
 	public Predicate<RuntimeHints> onType(Class<?> type) {
-		Assert.notNull(type, "'type' should not be null");
+		Assert.notNull(type, "'type' must not be null");
 		return onType(TypeReference.of(type));
 	}
 
@@ -55,7 +56,7 @@ public class SerializationHintsPredicates {
 	 * @see java.lang.reflect.Proxy
 	 */
 	public Predicate<RuntimeHints> onType(TypeReference typeReference) {
-		Assert.notNull(typeReference, "'typeReference' should not be null");
+		Assert.notNull(typeReference, "'typeReference' must not be null");
 		return hints -> hints.serialization().javaSerializationHints().anyMatch(
 				hint -> hint.getType().equals(typeReference));
 	}

spring-core/src/main/java/org/springframework/core/convert/converter/Converter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -57,7 +57,7 @@ public interface Converter<S, T> {
 	 * @since 5.3
 	 */
 	default <U> Converter<S, U> andThen(Converter<? super T, ? extends U> after) {
-		Assert.notNull(after, "After Converter must not be null");
+		Assert.notNull(after, "'after' Converter must not be null");
 		return (S s) -> {
 			T initialResult = convert(s);
 			return (initialResult != null ? after.convert(initialResult) : null);

spring-core/src/main/java/org/springframework/core/convert/converter/ConvertingComparator.java

@@ -114,7 +114,7 @@ public class ConvertingComparator<S, T> implements Comparator<S> {
 
 		public ConversionServiceConverter(ConversionService conversionService, Class<? extends T> targetType) {
 			Assert.notNull(conversionService, "ConversionService must not be null");
-			Assert.notNull(targetType, "TargetType must not be null");
+			Assert.notNull(targetType, "'targetType' must not be null");
 			this.conversionService = conversionService;
 			this.targetType = targetType;
 		}

spring-core/src/main/java/org/springframework/core/io/buffer/DataBufferUtils.java

@@ -100,7 +100,7 @@ public abstract class DataBufferUtils {
 			Callable<ReadableByteChannel> channelSupplier, DataBufferFactory bufferFactory, int bufferSize) {
 
 		Assert.notNull(channelSupplier, "'channelSupplier' must not be null");
-		Assert.notNull(bufferFactory, "'dataBufferFactory' must not be null");
+		Assert.notNull(bufferFactory, "'bufferFactory' must not be null");
 		Assert.isTrue(bufferSize > 0, "'bufferSize' must be > 0");
 
 		return Flux.using(channelSupplier,
@@ -140,7 +140,7 @@ public abstract class DataBufferUtils {
 			DataBufferFactory bufferFactory, int bufferSize) {
 
 		Assert.notNull(channelSupplier, "'channelSupplier' must not be null");
-		Assert.notNull(bufferFactory, "'dataBufferFactory' must not be null");
+		Assert.notNull(bufferFactory, "'bufferFactory' must not be null");
 		Assert.isTrue(position >= 0, "'position' must be >= 0");
 		Assert.isTrue(bufferSize > 0, "'bufferSize' must be > 0");
 
@@ -172,7 +172,7 @@ public abstract class DataBufferUtils {
 			Path path, DataBufferFactory bufferFactory, int bufferSize, OpenOption... options) {
 
 		Assert.notNull(path, "Path must not be null");
-		Assert.notNull(bufferFactory, "BufferFactory must not be null");
+		Assert.notNull(bufferFactory, "DataBufferFactory must not be null");
 		Assert.isTrue(bufferSize > 0, "'bufferSize' must be > 0");
 		if (options.length > 0) {
 			for (OpenOption option : options) {
@@ -420,7 +420,7 @@ public abstract class DataBufferUtils {
 	@SuppressWarnings("unchecked")
 	public static <T extends DataBuffer> Flux<T> takeUntilByteCount(Publisher<T> publisher, long maxByteCount) {
 		Assert.notNull(publisher, "Publisher must not be null");
-		Assert.isTrue(maxByteCount >= 0, "'maxByteCount' must be a positive number");
+		Assert.isTrue(maxByteCount >= 0, "'maxByteCount' must be >= 0");
 
 		return Flux.defer(() -> {
 			AtomicLong countDown = new AtomicLong(maxByteCount);
@@ -453,7 +453,7 @@ public abstract class DataBufferUtils {
 	 */
 	public static <T extends DataBuffer> Flux<T> skipUntilByteCount(Publisher<T> publisher, long maxByteCount) {
 		Assert.notNull(publisher, "Publisher must not be null");
-		Assert.isTrue(maxByteCount >= 0, "'maxByteCount' must be a positive number");
+		Assert.isTrue(maxByteCount >= 0, "'maxByteCount' must be >= 0");
 
 		return Flux.defer(() -> {
 			AtomicLong countDown = new AtomicLong(maxByteCount);
@@ -590,7 +590,7 @@ public abstract class DataBufferUtils {
 	 */
 	@SuppressWarnings({ "unchecked", "rawtypes" })
 	public static Mono<DataBuffer> join(Publisher<? extends DataBuffer> buffers, int maxByteCount) {
-		Assert.notNull(buffers, "'dataBuffers' must not be null");
+		Assert.notNull(buffers, "'buffers' must not be null");
 
 		if (buffers instanceof Mono mono) {
 			return mono;

spring-core/src/main/java/org/springframework/core/io/support/ResourceRegion.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2018 the original author or authors.
+ * Copyright 2002-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -45,8 +45,8 @@ public class ResourceRegion {
 	 */
 	public ResourceRegion(Resource resource, long position, long count) {
 		Assert.notNull(resource, "Resource must not be null");
-		Assert.isTrue(position >= 0, "'position' must be larger than or equal to 0");
+		Assert.isTrue(position >= 0, "'position' must be greater than or equal to 0");
-		Assert.isTrue(count >= 0, "'count' must be larger than or equal to 0");
+		Assert.isTrue(count >= 0, "'count' must be greater than or equal to 0");
 		this.resource = resource;
 		this.position = position;
 		this.count = count;

spring-core/src/main/java/org/springframework/util/AntPathMatcher.java

@@ -113,7 +113,7 @@ public class AntPathMatcher implements PathMatcher {
 	 * @since 4.1
 	 */
 	public AntPathMatcher(String pathSeparator) {
-		Assert.notNull(pathSeparator, "'pathSeparator' is required");
+		Assert.notNull(pathSeparator, "'pathSeparator' must not be null");
 		this.pathSeparator = pathSeparator;
 		this.pathSeparatorPatternCache = new PathSeparatorPatternCache(pathSeparator);
 	}

spring-core/src/main/java/org/springframework/util/ConcurrentLruCache.java

@@ -29,7 +29,6 @@ import java.util.function.Function;
 
 import org.springframework.lang.Nullable;
 
-
 /**
  * Simple LRU (Least Recently Used) cache, bounded by a specified cache capacity.
  * <p>This is a simplified, opinionated implementation of a LRU cache for internal
@@ -81,7 +80,7 @@ public final class ConcurrentLruCache<K, V> {
 	}
 
 	private ConcurrentLruCache(int capacity, Function<K, V> generator, int concurrencyLevel) {
-		Assert.isTrue(capacity > 0, "Capacity should be > 0");
+		Assert.isTrue(capacity > 0, "Capacity must be > 0");
 		this.capacity = capacity;
 		this.cache = new ConcurrentHashMap<>(16, 0.75f, concurrencyLevel);
 		this.generator = generator;
@@ -106,8 +105,8 @@ public final class ConcurrentLruCache<K, V> {
 	}
 
 	private void put(K key, V value) {
-		Assert.notNull(key, "key should not be null");
+		Assert.notNull(key, "key must not be null");
-		Assert.notNull(value, "value should not be null");
+		Assert.notNull(value, "value must not be null");
 		final CacheEntry<V> cacheEntry = new CacheEntry<>(value, CacheEntryState.ACTIVE);
 		final Node<K, V> node = new Node<>(key, cacheEntry);
 		final Node<K, V> prior = this.cache.putIfAbsent(node.key, node);

spring-core/src/main/java/org/springframework/util/comparator/NullSafeComparator.java

@@ -85,7 +85,7 @@ public class NullSafeComparator<T> implements Comparator<T> {
 	 * @param nullsLow whether to treat nulls lower or higher than non-null objects
 	 */
 	public NullSafeComparator(Comparator<T> comparator, boolean nullsLow) {
-		Assert.notNull(comparator, "Non-null Comparator is required");
+		Assert.notNull(comparator, "Comparator must not be null");
 		this.nonNullComparator = comparator;
 		this.nullsLow = nullsLow;
 	}

spring-core/src/main/java/org/springframework/util/xml/SimpleNamespaceContext.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2018 the original author or authors.
+ * Copyright 2002-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -49,7 +49,7 @@ public class SimpleNamespaceContext implements NamespaceContext {
 
 	@Override
 	public String getNamespaceURI(String prefix) {
-		Assert.notNull(prefix, "No prefix given");
+		Assert.notNull(prefix, "'prefix' must not be null");
 		if (XMLConstants.XML_NS_PREFIX.equals(prefix)) {
 			return XMLConstants.XML_NS_URI;
 		}
@@ -78,7 +78,7 @@ public class SimpleNamespaceContext implements NamespaceContext {
 	}
 
 	private Set<String> getPrefixesSet(String namespaceUri) {
-		Assert.notNull(namespaceUri, "No namespaceUri given");
+		Assert.notNull(namespaceUri, "'namespaceUri' must not be null");
 		if (this.defaultNamespaceUri.equals(namespaceUri)) {
 			return Collections.singleton(XMLConstants.DEFAULT_NS_PREFIX);
 		}
@@ -114,11 +114,11 @@ public class SimpleNamespaceContext implements NamespaceContext {
 	/**
 	 * Bind the given prefix to the given namespace.
 	 * @param prefix the namespace prefix
-	 * @param namespaceUri the namespace uri
+	 * @param namespaceUri the namespace URI
 	 */
 	public void bindNamespaceUri(String prefix, String namespaceUri) {
-		Assert.notNull(prefix, "No prefix given");
+		Assert.notNull(prefix, "'prefix' must not be null");
-		Assert.notNull(namespaceUri, "No namespaceUri given");
+		Assert.notNull(namespaceUri, "'namespaceUri' must not be null");
 		if (XMLConstants.DEFAULT_NS_PREFIX.equals(prefix)) {
 			this.defaultNamespaceUri = namespaceUri;
 		}

spring-expression/src/main/java/org/springframework/expression/spel/standard/SpelExpression.java

@@ -249,7 +249,7 @@ public class SpelExpression implements Expression {
 	@Override
 	@Nullable
 	public Object getValue(EvaluationContext context) throws EvaluationException {
-		Assert.notNull(context, "EvaluationContext is required");
+		Assert.notNull(context, "EvaluationContext must not be null");
 
 		CompiledExpression compiledAst = this.compiledAst;
 		if (compiledAst != null) {
@@ -279,7 +279,7 @@ public class SpelExpression implements Expression {
 	@Override
 	@Nullable
 	public <T> T getValue(EvaluationContext context, @Nullable Class<T> expectedResultType) throws EvaluationException {
-		Assert.notNull(context, "EvaluationContext is required");
+		Assert.notNull(context, "EvaluationContext must not be null");
 
 		CompiledExpression compiledAst = this.compiledAst;
 		if (compiledAst != null) {
@@ -314,7 +314,7 @@ public class SpelExpression implements Expression {
 	@Override
 	@Nullable
 	public Object getValue(EvaluationContext context, @Nullable Object rootObject) throws EvaluationException {
-		Assert.notNull(context, "EvaluationContext is required");
+		Assert.notNull(context, "EvaluationContext must not be null");
 
 		CompiledExpression compiledAst = this.compiledAst;
 		if (compiledAst != null) {
@@ -346,7 +346,7 @@ public class SpelExpression implements Expression {
 	public <T> T getValue(EvaluationContext context, @Nullable Object rootObject, @Nullable Class<T> expectedResultType)
 			throws EvaluationException {
 
-		Assert.notNull(context, "EvaluationContext is required");
+		Assert.notNull(context, "EvaluationContext must not be null");
 
 		CompiledExpression compiledAst = this.compiledAst;
 		if (compiledAst != null) {
@@ -393,7 +393,7 @@ public class SpelExpression implements Expression {
 	@Override
 	@Nullable
 	public Class<?> getValueType(EvaluationContext context) throws EvaluationException {
-		Assert.notNull(context, "EvaluationContext is required");
+		Assert.notNull(context, "EvaluationContext must not be null");
 		ExpressionState expressionState = new ExpressionState(context, this.configuration);
 		TypeDescriptor typeDescriptor = this.ast.getValueInternal(expressionState).getTypeDescriptor();
 		return (typeDescriptor != null ? typeDescriptor.getType() : null);
@@ -424,7 +424,7 @@ public class SpelExpression implements Expression {
 	@Override
 	@Nullable
 	public TypeDescriptor getValueTypeDescriptor(EvaluationContext context) throws EvaluationException {
-		Assert.notNull(context, "EvaluationContext is required");
+		Assert.notNull(context, "EvaluationContext must not be null");
 		ExpressionState expressionState = new ExpressionState(context, this.configuration);
 		return this.ast.getValueInternal(expressionState).getTypeDescriptor();
 	}
@@ -434,7 +434,7 @@ public class SpelExpression implements Expression {
 	public TypeDescriptor getValueTypeDescriptor(EvaluationContext context, @Nullable Object rootObject)
 			throws EvaluationException {
 
-		Assert.notNull(context, "EvaluationContext is required");
+		Assert.notNull(context, "EvaluationContext must not be null");
 		ExpressionState expressionState = new ExpressionState(context, toTypedValue(rootObject), this.configuration);
 		return this.ast.getValueInternal(expressionState).getTypeDescriptor();
 	}
@@ -447,13 +447,13 @@ public class SpelExpression implements Expression {
 
 	@Override
 	public boolean isWritable(EvaluationContext context) throws EvaluationException {
-		Assert.notNull(context, "EvaluationContext is required");
+		Assert.notNull(context, "EvaluationContext must not be null");
 		return this.ast.isWritable(new ExpressionState(context, this.configuration));
 	}
 
 	@Override
 	public boolean isWritable(EvaluationContext context, @Nullable Object rootObject) throws EvaluationException {
-		Assert.notNull(context, "EvaluationContext is required");
+		Assert.notNull(context, "EvaluationContext must not be null");
 		return this.ast.isWritable(new ExpressionState(context, toTypedValue(rootObject), this.configuration));
 	}
 
@@ -465,7 +465,7 @@ public class SpelExpression implements Expression {
 
 	@Override
 	public void setValue(EvaluationContext context, @Nullable Object value) throws EvaluationException {
-		Assert.notNull(context, "EvaluationContext is required");
+		Assert.notNull(context, "EvaluationContext must not be null");
 		this.ast.setValue(new ExpressionState(context, this.configuration), value);
 	}
 
@@ -473,7 +473,7 @@ public class SpelExpression implements Expression {
 	public void setValue(EvaluationContext context, @Nullable Object rootObject, @Nullable Object value)
 			throws EvaluationException {
 
-		Assert.notNull(context, "EvaluationContext is required");
+		Assert.notNull(context, "EvaluationContext must not be null");
 		this.ast.setValue(new ExpressionState(context, toTypedValue(rootObject), this.configuration), value);
 	}
 

spring-jdbc/src/main/java/org/springframework/jdbc/core/RowMapperResultSetExtractor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2018 the original author or authors.
+ * Copyright 2002-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -80,7 +80,7 @@ public class RowMapperResultSetExtractor<T> implements ResultSetExtractor<List<T
 	 * (just used for optimized collection handling)
 	 */
 	public RowMapperResultSetExtractor(RowMapper<T> rowMapper, int rowsExpected) {
-		Assert.notNull(rowMapper, "RowMapper is required");
+		Assert.notNull(rowMapper, "RowMapper must not be null");
 		this.rowMapper = rowMapper;
 		this.rowsExpected = rowsExpected;
 	}

spring-jms/src/main/java/org/springframework/jms/listener/adapter/JmsResponse.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -62,11 +62,11 @@ public class JmsResponse<T> {
 
 	/**
 	 * Create a new {@link JmsResponse} instance.
-	 * @param response the content of the result
+	 * @param response the content of the response
 	 * @param destination the destination
 	 */
 	protected JmsResponse(T response, Object destination) {
-		Assert.notNull(response, "Result must not be null");
+		Assert.notNull(response, "'response' must not be null");
 		this.response = response;
 		this.destination = destination;
 	}

spring-jms/src/main/java/org/springframework/jms/support/converter/MessagingMessageConverter.java

@@ -70,8 +70,8 @@ public class MessagingMessageConverter implements MessageConverter, Initializing
 	 * header mapper.
 	 */
 	public MessagingMessageConverter(MessageConverter payloadConverter, JmsHeaderMapper headerMapper) {
-		Assert.notNull(payloadConverter, "PayloadConverter must not be null");
+		Assert.notNull(payloadConverter, "'payloadConverter' must not be null");
-		Assert.notNull(headerMapper, "HeaderMapper must not be null");
+		Assert.notNull(headerMapper, "'headerMapper' must not be null");
 		this.payloadConverter = payloadConverter;
 		this.headerMapper = headerMapper;
 	}

spring-r2dbc/src/main/java/org/springframework/r2dbc/core/binding/BindMarkersFactory.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -82,7 +82,7 @@ public interface BindMarkersFactory {
 	 * @see io.r2dbc.spi.Statement#bind(int, Object)
 	 */
 	static BindMarkersFactory anonymous(String placeholder) {
-		Assert.hasText(placeholder, "Placeholder must not be empty!");
+		Assert.hasText(placeholder, "Placeholder must not be empty");
 		return new BindMarkersFactory() {
 			@Override
 			public BindMarkers create() {

spring-test/src/main/java/org/springframework/mock/http/client/MockClientHttpResponse.java

@@ -41,7 +41,7 @@ public class MockClientHttpResponse extends MockHttpInputMessage implements Clie
 	 */
 	public MockClientHttpResponse(byte[] body, HttpStatusCode statusCode) {
 		super(body);
-		Assert.notNull(statusCode, "HttpStatusCode is required");
+		Assert.notNull(statusCode, "HttpStatusCode must not be null");
 		this.statusCode = statusCode;
 	}
 
@@ -59,7 +59,7 @@ public class MockClientHttpResponse extends MockHttpInputMessage implements Clie
 	 */
 	public MockClientHttpResponse(InputStream body, HttpStatusCode statusCode) {
 		super(body);
-		Assert.notNull(statusCode, "HttpStatus is required");
+		Assert.notNull(statusCode, "HttpStatusCode must not be null");
 		this.statusCode = statusCode;
 	}
 

spring-test/src/main/java/org/springframework/mock/http/client/reactive/MockClientHttpResponse.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -61,7 +61,7 @@ public class MockClientHttpResponse implements ClientHttpResponse {
 	}
 
 	public MockClientHttpResponse(HttpStatusCode status) {
-		Assert.notNull(status, "HttpStatusCode is required");
+		Assert.notNull(status, "HttpStatusCode must not be null");
 		this.statusCode = status;
 	}
 

spring-web/src/main/java/org/springframework/http/ContentDisposition.java

@@ -363,7 +363,7 @@ public final class ContentDisposition {
 					if (idx1 != -1 && idx2 != -1) {
 						charset = Charset.forName(value.substring(0, idx1).trim());
 						Assert.isTrue(UTF_8.equals(charset) || ISO_8859_1.equals(charset),
-								"Charset should be UTF-8 or ISO-8859-1");
+								"Charset must be UTF-8 or ISO-8859-1");
 						filename = decodeFilename(value.substring(idx2 + 1), charset);
 					}
 					else {
@@ -604,10 +604,11 @@ public final class ContentDisposition {
 	 * @see <a href="https://tools.ietf.org/html/rfc5987">RFC 5987</a>
 	 */
 	private static String encodeFilename(String input, Charset charset) {
-		Assert.notNull(input, "'input' is required");
+		Assert.notNull(input, "'input' must not be null");
-		Assert.notNull(charset, "'charset' is required");
+		Assert.notNull(charset, "'charset' must not be null");
 		Assert.isTrue(!StandardCharsets.US_ASCII.equals(charset), "ASCII does not require encoding");
 		Assert.isTrue(UTF_8.equals(charset) || ISO_8859_1.equals(charset), "Only UTF-8 and ISO-8859-1 are supported");
+
 		byte[] source = input.getBytes(charset);
 		int len = source.length;
 		StringBuilder sb = new StringBuilder(len << 1);

spring-webflux/src/main/java/org/springframework/web/reactive/socket/HandshakeInfo.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -117,9 +117,9 @@ public class HandshakeInfo {
 
 		Assert.notNull(uri, "URI is required");
 		Assert.notNull(headers, "HttpHeaders are required");
-		Assert.notNull(cookies, "`cookies` are required");
+		Assert.notNull(cookies, "'cookies' are required");
 		Assert.notNull(principal, "Principal is required");
-		Assert.notNull(attributes, "'attributes' is required");
+		Assert.notNull(attributes, "'attributes' are required");
 
 		this.uri = uri;
 		this.headers = headers;

spring-webflux/src/main/java/org/springframework/web/reactive/socket/adapter/AbstractWebSocketSession.java

@@ -64,10 +64,10 @@ public abstract class AbstractWebSocketSession<T> implements WebSocketSession {
 	 * Create a new WebSocket session.
 	 */
 	protected AbstractWebSocketSession(T delegate, String id, HandshakeInfo info, DataBufferFactory bufferFactory) {
-		Assert.notNull(delegate, "Native session is required.");
+		Assert.notNull(delegate, "Native session is required");
-		Assert.notNull(id, "Session id is required.");
+		Assert.notNull(id, "Session id is required");
-		Assert.notNull(info, "HandshakeInfo is required.");
+		Assert.notNull(info, "HandshakeInfo is required");
-		Assert.notNull(bufferFactory, "DataBuffer factory is required.");
+		Assert.notNull(bufferFactory, "DataBuffer factory is required");
 
 		this.delegate = delegate;
 		this.id = id;