renamed back to TypeDescriptor after ConversionContext proved not good enough name for any change

git-svn-id: https://src.springframework.org/svn/spring-framework/trunk@1240 50f2f4bb-b051-0410-bef5-90022cba6387

org.springframework.core/src/main/java/org/springframework/core/convert/TypeConverter.java

@@ -19,8 +19,7 @@ package org.springframework.core.convert;
  * A service interface for type conversion. This is the entry point into the convert system.
  * <p>
  * Call {@link #convert(Object, Class)} to perform a thread-safe type conversion using this system.<br>
- * Call {@link #convert(Object, ConversionContext)} to perform a conversion with additional context about the point
+ * Call {@link #convert(Object, TypeDescriptor)} to perform a conversion with additional context about the targetType to convert to.
- * where conversion needs to occur.
  * 
  * @author Keith Donald
  */
@@ -37,10 +36,10 @@ public interface TypeConverter {
 	/**
 	 * Returns true if objects of sourceType can be converted to the type of the conversion point.
 	 * @param source the source to convert from (may be null)
-	 * @param context context about the point where conversion would occur
+	 * @param targetType context about the target type to convert to
 	 * @return true if a conversion can be performed, false if not
 	 */
-	boolean canConvert(Class<?> sourceType, ConversionContext<?> context);
+	boolean canConvert(Class<?> sourceType, TypeDescriptor<?> targetType);
 
 	/**
 	 * Convert the source to targetType.
@@ -54,10 +53,10 @@ public interface TypeConverter {
 	/**
 	 * Convert the source to type T needed by the conversion point.
 	 * @param source the source to convert from (may be null)
-	 * @param context context about the point where conversion will occur
+	 * @param targetType context about the target type to convert to
-	 * @return the converted object, an instance of {@link ConversionContext#getType()}</code>, or <code>null</code> if a null source was provided
+	 * @return the converted object, an instance of {@link TypeDescriptor#getType()}</code>, or <code>null</code> if a null source was provided
 	 * @throws ConvertException if an exception occurred
 	 */
-	<S, T> T convert(S source, ConversionContext<T> context);
+	<S, T> T convert(S source, TypeDescriptor<T> targetType);
 
 }

org.springframework.core/src/main/java/org/springframework/core/convert/TypeDescriptor.java

@@ -27,19 +27,17 @@ import org.springframework.util.Assert;
 
 // TODO doesn't support more than depth of one (eg. Map<String,List<Foo>> or List<String>[])
 /**
- * Context about a point where conversion needs to be performed.  Provides context about the point such 
+ * Context about a type to convert to.
- * as field or method parameter information.
- * 
  * @author Keith Donald
  * @author Andy Clement
  */
-public class ConversionContext<T> {
+public class TypeDescriptor<T> {
 
 	/**
 	 * Constant value for the null object
 	 */
 	@SuppressWarnings("unchecked")
-	public final static ConversionContext NULL = new ConversionContext((Class<?>) null);
+	public final static TypeDescriptor NULL = new TypeDescriptor((Class<?>) null);
 
 	private MethodParameter methodParameter;
 
@@ -50,29 +48,30 @@ public class ConversionContext<T> {
 	private Class<?> type;
 
 	/**
-	 * Creates a new context for the given type. Use this constructor when a conversion point comes from a source such as
+	 * Creates a new descriptor for the given type.
-	 * a Map or collection, where no additional binding metadata is available.
+	 * Use this constructor when a conversion point comes from a source such as a Map or collection, where no additional context is available.
 	 * @param type the actual type
 	 */
-	public ConversionContext(Class<?> type) {
+	public TypeDescriptor(Class<?> type) {
 		this.type = type;
 	}
 
 	/**
-	 * Create a new context for a method or constructor parameter. Use this constructor when a conversion point originates
+	 * Create a new type descriptor from a method or constructor parameter.
-	 * from a method parameter, such as a setter method argument.
+	 * Use this constructor when a target conversion point originates from a method parameter, such as a setter method argument.
 	 * @param methodParameter the MethodParameter to wrap
 	 */
-	public ConversionContext(MethodParameter methodParameter) {
+	public TypeDescriptor(MethodParameter methodParameter) {
 		Assert.notNull(methodParameter, "MethodParameter must not be null");
 		this.methodParameter = methodParameter;
 	}
 
 	/**
-	 * Create a new context for a field. Use this constructor when a conversion point originates from a field.
+	 * Create a new type descriptor for a field.
+	 * Use this constructor when a target conversion point originates from a field.
 	 * @param field the field to wrap
 	 */
-	public ConversionContext(Field field) {
+	public TypeDescriptor(Field field) {
 		Assert.notNull(field, "Field must not be null");
 		this.field = field;
 	}
@@ -246,7 +245,7 @@ public class ConversionContext<T> {
 	 * @return true if this type is assignable to the target
 	 */
 	@SuppressWarnings("unchecked")	
-	public boolean isAssignableTo(ConversionContext targetType) {
+	public boolean isAssignableTo(TypeDescriptor targetType) {
 		return targetType.getType().isAssignableFrom(getType());
 	}
 
@@ -255,9 +254,9 @@ public class ConversionContext<T> {
 	 * @param type the class
 	 * @return the type descriptor
 	 */
-	public static <T> ConversionContext<T> valueOf(Class<T> type) {
+	public static <T> TypeDescriptor<T> valueOf(Class<T> type) {
 		// TODO needs a cache for common type descriptors
-		return new ConversionContext<T>(type);
+		return new TypeDescriptor<T>(type);
 	}
 
 	/**
@@ -266,7 +265,7 @@ public class ConversionContext<T> {
 	 * @return the type descriptor
 	 */
 	@SuppressWarnings("unchecked")	
-	public static ConversionContext forObject(Object object) {
+	public static TypeDescriptor forObject(Object object) {
 		if (object == null) {
 			return NULL;
 		} else {

org.springframework.core/src/main/java/org/springframework/core/convert/support/AbstractCollectionConverter.java

@@ -16,7 +16,7 @@
 package org.springframework.core.convert.support;
 
 import org.springframework.core.convert.ConversionFailedException;
-import org.springframework.core.convert.ConversionContext;
+import org.springframework.core.convert.TypeDescriptor;
 
 /**
  * Base class for converters that convert to and from collection types (arrays and java.util.Collection types)
@@ -28,18 +28,18 @@ abstract class AbstractCollectionConverter implements ConversionExecutor {
 
 	private ConversionExecutor elementConverter;
 	
-	private ConversionContext sourceCollectionType;
+	private TypeDescriptor sourceCollectionType;
 	
-	private ConversionContext targetCollectionType;
+	private TypeDescriptor targetCollectionType;
 	
-	public AbstractCollectionConverter(ConversionContext sourceCollectionType, ConversionContext targetCollectionType, GenericTypeConverter conversionService) {
+	public AbstractCollectionConverter(TypeDescriptor sourceCollectionType, TypeDescriptor targetCollectionType, GenericTypeConverter conversionService) {
 		this.conversionService = conversionService;
 		this.sourceCollectionType = sourceCollectionType;
 		this.targetCollectionType = targetCollectionType;
 		Class<?> sourceElementType = sourceCollectionType.getElementType();
 		Class<?> targetElementType = targetCollectionType.getElementType();
 		if (sourceElementType != null && targetElementType != null) {
-			elementConverter = conversionService.getConversionExecutor(sourceElementType, ConversionContext.valueOf(targetElementType));
+			elementConverter = conversionService.getConversionExecutor(sourceElementType, TypeDescriptor.valueOf(targetElementType));
 		} else {
 			elementConverter = NoOpConversionExecutor.INSTANCE;
 		}

org.springframework.core/src/main/java/org/springframework/core/convert/support/ArrayToArray.java

@@ -18,7 +18,7 @@ package org.springframework.core.convert.support;
 import java.lang.reflect.Array;
 
 import org.springframework.core.convert.TypeConverter;
-import org.springframework.core.convert.ConversionContext;
+import org.springframework.core.convert.TypeDescriptor;
 
 /**
  * Special one-way converter that converts from a source array to a target array. Supports type conversion of the
@@ -29,7 +29,7 @@ import org.springframework.core.convert.ConversionContext;
  */
 class ArrayToArray extends AbstractCollectionConverter {
 
-	public ArrayToArray(ConversionContext sourceArrayType, ConversionContext targetArrayType, GenericTypeConverter conversionService) {
+	public ArrayToArray(TypeDescriptor sourceArrayType, TypeDescriptor targetArrayType, GenericTypeConverter conversionService) {
 		super(sourceArrayType, targetArrayType, conversionService);
 	}
 

org.springframework.core/src/main/java/org/springframework/core/convert/support/ArrayToCollection.java

@@ -18,7 +18,7 @@ package org.springframework.core.convert.support;
 import java.lang.reflect.Array;
 import java.util.Collection;
 
-import org.springframework.core.convert.ConversionContext;
+import org.springframework.core.convert.TypeDescriptor;
 
 /**
  * Special converter that converts from a source array to a target collection. Supports the selection of an
@@ -29,7 +29,7 @@ import org.springframework.core.convert.ConversionContext;
  */
 class ArrayToCollection extends AbstractCollectionConverter {
 
-	public ArrayToCollection(ConversionContext sourceArrayType, ConversionContext targetCollectionType,
+	public ArrayToCollection(TypeDescriptor sourceArrayType, TypeDescriptor targetCollectionType,
 			GenericTypeConverter conversionService) {
 		super(sourceArrayType, targetCollectionType, conversionService);
 	}

org.springframework.core/src/main/java/org/springframework/core/convert/support/CollectionToArray.java

@@ -19,7 +19,7 @@ import java.lang.reflect.Array;
 import java.util.Collection;
 import java.util.Iterator;
 
-import org.springframework.core.convert.ConversionContext;
+import org.springframework.core.convert.TypeDescriptor;
 
 /**
  * Special converter that converts from target collection to a source array.
@@ -28,7 +28,7 @@ import org.springframework.core.convert.ConversionContext;
  */
 class CollectionToArray extends AbstractCollectionConverter {
 
-	public CollectionToArray(ConversionContext sourceArrayType, ConversionContext targetCollectionType,
+	public CollectionToArray(TypeDescriptor sourceArrayType, TypeDescriptor targetCollectionType,
 			GenericTypeConverter conversionService) {
 		super(sourceArrayType, targetCollectionType, conversionService);
 	}
@@ -52,7 +52,7 @@ class CollectionToArray extends AbstractCollectionConverter {
 			while (it.hasNext()) {
 				Object value = it.next();
 				if (value != null) {
-					elementConverter = getConversionService().getConversionExecutor(value.getClass(), ConversionContext.valueOf(getTargetElementType()));
+					elementConverter = getConversionService().getConversionExecutor(value.getClass(), TypeDescriptor.valueOf(getTargetElementType()));
 					break;
 				}
 			}

org.springframework.core/src/main/java/org/springframework/core/convert/support/CollectionToCollection.java

@@ -18,7 +18,7 @@ package org.springframework.core.convert.support;
 import java.util.Collection;
 import java.util.Iterator;
 
-import org.springframework.core.convert.ConversionContext;
+import org.springframework.core.convert.TypeDescriptor;
 
 /**
  * A converter that can convert from one collection type to another.
@@ -27,7 +27,7 @@ import org.springframework.core.convert.ConversionContext;
  */
 class CollectionToCollection extends AbstractCollectionConverter {
 	
-	public CollectionToCollection(ConversionContext sourceCollectionType, ConversionContext targetCollectionType,
+	public CollectionToCollection(TypeDescriptor sourceCollectionType, TypeDescriptor targetCollectionType,
 			GenericTypeConverter conversionService) {
 		super(sourceCollectionType, targetCollectionType, conversionService);
 	}
@@ -53,7 +53,7 @@ class CollectionToCollection extends AbstractCollectionConverter {
 			while (it.hasNext()) {
 				Object value = it.next();
 				if (value != null) {
-					elementConverter = getConversionService().getConversionExecutor(value.getClass(), ConversionContext.valueOf(getTargetElementType()));
+					elementConverter = getConversionService().getConversionExecutor(value.getClass(), TypeDescriptor.valueOf(getTargetElementType()));
 					break;
 				}
 			}

org.springframework.core/src/main/java/org/springframework/core/convert/support/GenericTypeConverter.java

@@ -26,7 +26,7 @@ import java.util.List;
 import java.util.Map;
 
 import org.springframework.core.GenericTypeResolver;
-import org.springframework.core.convert.ConversionContext;
+import org.springframework.core.convert.TypeDescriptor;
 import org.springframework.core.convert.ConverterNotFoundException;
 import org.springframework.core.convert.TypeConverter;
 import org.springframework.core.convert.converter.Converter;
@@ -52,9 +52,6 @@ public class GenericTypeConverter implements TypeConverter, ConverterRegistry {
 	 */
 	private final Map sourceTypeConverters = new HashMap();
 
-	/**
-	 * An optional parent conversion service.
-	 */
 	private TypeConverter parent;
 
 	/**
@@ -108,16 +105,16 @@ public class GenericTypeConverter implements TypeConverter, ConverterRegistry {
 	// implementing TypeConverter
 
 	public boolean canConvert(Class<?> sourceType, Class<?> targetType) {
-		return canConvert(sourceType, ConversionContext.valueOf(targetType));
+		return canConvert(sourceType, TypeDescriptor.valueOf(targetType));
 	}
 
-	public boolean canConvert(Class<?> sourceType, ConversionContext<?> context) {
+	public boolean canConvert(Class<?> sourceType, TypeDescriptor<?> targetType) {
-		ConversionExecutor executor = getConversionExecutor(sourceType, context);
+		ConversionExecutor executor = getConversionExecutor(sourceType, targetType);
 		if (executor != null) {
 			return true;
 		} else {
 			if (parent != null) {
-				return parent.canConvert(sourceType, context);
+				return parent.canConvert(sourceType, targetType);
 			} else {
 				return false;
 			}
@@ -125,28 +122,28 @@ public class GenericTypeConverter implements TypeConverter, ConverterRegistry {
 	}
 
 	public <S, T> T convert(S source, Class<T> targetType) {
-		return convert(source, ConversionContext.valueOf(targetType));
+		return convert(source, TypeDescriptor.valueOf(targetType));
 	}
 
-	public <S, T> T convert(S source, ConversionContext<T> context) {
+	public <S, T> T convert(S source, TypeDescriptor<T> targetType) {
 		if (source == null) {
 			return null;
 		}
-		ConversionExecutor executor = getConversionExecutor(source.getClass(), context);
+		ConversionExecutor executor = getConversionExecutor(source.getClass(), targetType);
 		if (executor != null) {
 			return (T) executor.execute(source);
 		} else {
 			if (parent != null) {
-				return parent.convert(source, context);
+				return parent.convert(source, targetType);
 			} else {
-				throw new ConverterNotFoundException(source.getClass(), context.getType(),
+				throw new ConverterNotFoundException(source.getClass(), targetType.getType(),
 						"No converter found that can convert from sourceType [" + source.getClass().getName()
-								+ "] to targetType [" + context.getName() + "]");
+								+ "] to targetType [" + targetType.getName() + "]");
 			}
 		}
 	}
 
-	ConversionExecutor getConversionExecutor(Class sourceClass, ConversionContext targetType)
+	ConversionExecutor getConversionExecutor(Class sourceClass, TypeDescriptor targetType)
 			throws ConverterNotFoundException {
 		Assert.notNull(sourceClass, "The sourceType to convert from is required");
 		Assert.notNull(targetType, "The targetType to convert to is required");
@@ -154,7 +151,7 @@ public class GenericTypeConverter implements TypeConverter, ConverterRegistry {
 			// TODO for Andy - is this correct way to handle the Null TypedValue?
 			return NoOpConversionExecutor.INSTANCE;
 		}
-		ConversionContext sourceType = ConversionContext.valueOf(sourceClass);
+		TypeDescriptor sourceType = TypeDescriptor.valueOf(sourceClass);
 		if (sourceType.isArray()) {
 			if (targetType.isArray()) {
 				return new ArrayToArray(sourceType, targetType, this);

org.springframework.core/src/main/java/org/springframework/core/convert/support/MapToMap.java

@@ -22,7 +22,7 @@ import java.util.SortedMap;
 import java.util.TreeMap;
 
 import org.springframework.core.convert.ConversionFailedException;
-import org.springframework.core.convert.ConversionContext;
+import org.springframework.core.convert.TypeDescriptor;
 
 /**
  * Converts from one map to another map, with support for converting individual map elements based on generic type information.
@@ -31,9 +31,9 @@ import org.springframework.core.convert.ConversionContext;
 @SuppressWarnings("unchecked")
 class MapToMap implements ConversionExecutor {
 
-	private ConversionContext sourceType;
+	private TypeDescriptor sourceType;
 
-	private ConversionContext targetType;
+	private TypeDescriptor targetType;
 
 	private GenericTypeConverter conversionService;
 
@@ -45,7 +45,7 @@ class MapToMap implements ConversionExecutor {
 	 * @param targetType the target map type
 	 * @param conversionService the conversion service
 	 */
-	public MapToMap(ConversionContext sourceType, ConversionContext targetType, GenericTypeConverter conversionService) {
+	public MapToMap(TypeDescriptor sourceType, TypeDescriptor targetType, GenericTypeConverter conversionService) {
 		this.sourceType = sourceType;
 		this.targetType = targetType;
 		this.conversionService = conversionService;
@@ -55,9 +55,9 @@ class MapToMap implements ConversionExecutor {
 	private EntryConverter createEntryConverter() {
 		if (sourceType.isMapEntryTypeKnown() && targetType.isMapEntryTypeKnown()) {
 			ConversionExecutor keyConverter = conversionService.getConversionExecutor(sourceType.getMapKeyType(),
-					ConversionContext.valueOf(targetType.getMapKeyType()));
+					TypeDescriptor.valueOf(targetType.getMapKeyType()));
 			ConversionExecutor valueConverter = conversionService.getConversionExecutor(sourceType.getMapValueType(),
-					ConversionContext.valueOf(targetType.getMapValueType()));
+					TypeDescriptor.valueOf(targetType.getMapValueType()));
 			return new EntryConverter(keyConverter, valueConverter);
 		} else {
 			return EntryConverter.NO_OP_INSTANCE;
@@ -94,11 +94,11 @@ class MapToMap implements ConversionExecutor {
 					Object key = entry.getKey();
 					Object value = entry.getValue();
 					if (keyConverter == null && key != null) {
-						keyConverter = conversionService.getConversionExecutor(key.getClass(), ConversionContext
+						keyConverter = conversionService.getConversionExecutor(key.getClass(), TypeDescriptor
 								.valueOf(targetKeyType));
 					}
 					if (valueConverter == null && value != null) {
-						valueConverter = conversionService.getConversionExecutor(value.getClass(), ConversionContext
+						valueConverter = conversionService.getConversionExecutor(value.getClass(), TypeDescriptor
 								.valueOf(targetValueType));
 					}
 					if (keyConverter != null && valueConverter != null) {

org.springframework.core/src/main/java/org/springframework/core/convert/support/StaticConversionExecutor.java

@@ -16,7 +16,7 @@
 package org.springframework.core.convert.support;
 
 import org.springframework.core.convert.ConversionFailedException;
-import org.springframework.core.convert.ConversionContext;
+import org.springframework.core.convert.TypeDescriptor;
 import org.springframework.core.convert.converter.Converter;
 import org.springframework.core.style.ToStringCreator;
 
@@ -27,13 +27,13 @@ import org.springframework.core.style.ToStringCreator;
 @SuppressWarnings("unchecked")
 class StaticConversionExecutor implements ConversionExecutor {
 
-	private final ConversionContext sourceType;
+	private final TypeDescriptor sourceType;
 
-	private final ConversionContext targetType;
+	private final TypeDescriptor targetType;
 
 	private final Converter converter;
 
-	public StaticConversionExecutor(ConversionContext sourceType, ConversionContext targetType, Converter converter) {
+	public StaticConversionExecutor(TypeDescriptor sourceType, TypeDescriptor targetType, Converter converter) {
 		this.sourceType = sourceType;
 		this.targetType = targetType;
 		this.converter = converter;

org.springframework.core/src/test/java/org/springframework/core/convert/TypeDescriptorTests.java

@@ -26,7 +26,7 @@ import org.junit.Test;
 /**
  * @author Andy Clement
  */
-public class ConversionContextTests {
+public class TypeDescriptorTests {
 
 	List<String> listOfString;
 	int[] intArray;
@@ -34,13 +34,13 @@ public class ConversionContextTests {
 
 	@Test
 	public void testWrapperType() {
-		ConversionContext desc = ConversionContext.valueOf(int.class);
+		TypeDescriptor desc = TypeDescriptor.valueOf(int.class);
 		assertEquals(Integer.class, desc.getType());
 	}
 	
 	@Test
 	public void listDescriptors() throws Exception {
-		ConversionContext typeDescriptor = new ConversionContext(ConversionContextTests.class.getDeclaredField("listOfString"));
+		TypeDescriptor typeDescriptor = new TypeDescriptor(TypeDescriptorTests.class.getDeclaredField("listOfString"));
 		assertFalse(typeDescriptor.isArray());
 		assertEquals(List.class,typeDescriptor.getType());
 		assertEquals(String.class,typeDescriptor.getElementType());
@@ -50,7 +50,7 @@ public class ConversionContextTests {
 	
 	@Test
 	public void arrayTypeDescriptors() throws Exception {
-		ConversionContext typeDescriptor = new ConversionContext(ConversionContextTests.class.getDeclaredField("intArray"));
+		TypeDescriptor typeDescriptor = new TypeDescriptor(TypeDescriptorTests.class.getDeclaredField("intArray"));
 		assertTrue(typeDescriptor.isArray());
 		assertEquals(Integer.TYPE,typeDescriptor.getElementType());
 		assertEquals("int[]",typeDescriptor.asString());
@@ -58,14 +58,14 @@ public class ConversionContextTests {
 
 	@Test
 	public void buildingArrayTypeDescriptors() throws Exception {
-		ConversionContext typeDescriptor = new ConversionContext(new int[0].getClass());
+		TypeDescriptor typeDescriptor = new TypeDescriptor(new int[0].getClass());
 		assertTrue(typeDescriptor.isArray());
 		assertEquals(Integer.TYPE,typeDescriptor.getElementType());
 	}
 
 	@Test
 	public void complexTypeDescriptors() throws Exception {
-		ConversionContext typeDescriptor = new ConversionContext(ConversionContextTests.class.getDeclaredField("arrayOfListOfString"));
+		TypeDescriptor typeDescriptor = new TypeDescriptor(TypeDescriptorTests.class.getDeclaredField("arrayOfListOfString"));
 		assertTrue(typeDescriptor.isArray());
 		assertEquals(List.class,typeDescriptor.getElementType());
 		// TODO asc notice that the type of the list elements is lost: typeDescriptor.getElementType() should return a TypeDescriptor

org.springframework.core/src/test/java/org/springframework/core/convert/support/ArrayToArrayTests.java

@@ -3,7 +3,7 @@ package org.springframework.core.convert.support;
 import static org.junit.Assert.assertEquals;
 
 import org.junit.Test;
-import org.springframework.core.convert.ConversionContext;
+import org.springframework.core.convert.TypeDescriptor;
 import org.springframework.core.convert.support.ArrayToArray;
 import org.springframework.core.convert.support.DefaultTypeConverter;
 
@@ -12,7 +12,7 @@ public class ArrayToArrayTests {
 	@Test
 	public void testArrayToArrayConversion() {
 		DefaultTypeConverter service = new DefaultTypeConverter();
-		ArrayToArray c = new ArrayToArray(ConversionContext.valueOf(String[].class), ConversionContext.valueOf(Integer[].class), service);
+		ArrayToArray c = new ArrayToArray(TypeDescriptor.valueOf(String[].class), TypeDescriptor.valueOf(Integer[].class), service);
 		Integer[] result = (Integer[]) c.execute(new String[] { "1", "2", "3" });
 		assertEquals(new Integer(1), result[0]);
 		assertEquals(new Integer(2), result[1]);

org.springframework.core/src/test/java/org/springframework/core/convert/support/ArrayToCollectionTests.java

@@ -9,7 +9,7 @@ import java.util.Set;
 import java.util.SortedSet;
 
 import org.junit.Test;
-import org.springframework.core.convert.ConversionContext;
+import org.springframework.core.convert.TypeDescriptor;
 import org.springframework.core.convert.support.ArrayToCollection;
 import org.springframework.core.convert.support.DefaultTypeConverter;
 
@@ -18,7 +18,7 @@ public class ArrayToCollectionTests {
 	@Test
 	public void testArrayToCollectionConversion() throws Exception {
 		DefaultTypeConverter service = new DefaultTypeConverter();
-		ArrayToCollection c = new ArrayToCollection(ConversionContext.valueOf(String[].class), new ConversionContext(getClass().getField("bindTarget")), service);
+		ArrayToCollection c = new ArrayToCollection(TypeDescriptor.valueOf(String[].class), new TypeDescriptor(getClass().getField("bindTarget")), service);
 		List result = (List) c.execute(new String[] { "1", "2", "3" });
 		assertEquals(new Integer(1), result.get(0));
 		assertEquals(new Integer(2), result.get(1));
@@ -28,7 +28,7 @@ public class ArrayToCollectionTests {
 	@Test
 	public void testArrayToSetConversion() throws Exception {
 		DefaultTypeConverter service = new DefaultTypeConverter();
-		ArrayToCollection c = new ArrayToCollection(ConversionContext.valueOf(String[].class), new ConversionContext(getClass().getField("setTarget")), service);
+		ArrayToCollection c = new ArrayToCollection(TypeDescriptor.valueOf(String[].class), new TypeDescriptor(getClass().getField("setTarget")), service);
 		Set result = (Set) c.execute(new String[] { "1" });
 		assertEquals("1", result.iterator().next());
 	}
@@ -36,7 +36,7 @@ public class ArrayToCollectionTests {
 	@Test
 	public void testArrayToSortedSetConversion() throws Exception {
 		DefaultTypeConverter service = new DefaultTypeConverter();
-		ArrayToCollection c = new ArrayToCollection(ConversionContext.valueOf(String[].class), new ConversionContext(getClass().getField("sortedSetTarget")), service);
+		ArrayToCollection c = new ArrayToCollection(TypeDescriptor.valueOf(String[].class), new TypeDescriptor(getClass().getField("sortedSetTarget")), service);
 		SortedSet result = (SortedSet) c.execute(new String[] { "1" });
 		assertEquals(new Integer(1), result.iterator().next());
 	}
@@ -44,7 +44,7 @@ public class ArrayToCollectionTests {
 	@Test
 	public void testArrayToCollectionImplConversion() throws Exception {
 		DefaultTypeConverter service = new DefaultTypeConverter();
-		ArrayToCollection c = new ArrayToCollection(ConversionContext.valueOf(String[].class), new ConversionContext(getClass().getField("implTarget")), service);
+		ArrayToCollection c = new ArrayToCollection(TypeDescriptor.valueOf(String[].class), new TypeDescriptor(getClass().getField("implTarget")), service);
 		LinkedList result = (LinkedList) c.execute(new String[] { "1" });
 		assertEquals("1", result.iterator().next());
 	}
@@ -52,7 +52,7 @@ public class ArrayToCollectionTests {
 	@Test
 	public void testArrayToNonGenericCollectionConversionNullElement() throws Exception {
 		DefaultTypeConverter service = new DefaultTypeConverter();
-		ArrayToCollection c = new ArrayToCollection(ConversionContext.valueOf(String[].class), new ConversionContext(getClass().getField("listTarget")), service);
+		ArrayToCollection c = new ArrayToCollection(TypeDescriptor.valueOf(String[].class), new TypeDescriptor(getClass().getField("listTarget")), service);
 		List result = (List) c.execute(new Integer[] { null, new Integer(1) });
 		assertEquals(null, result.get(0));
 		assertEquals(new Integer(1), result.get(1));

org.springframework.core/src/test/java/org/springframework/core/convert/support/CollectionToArrayTests.java

@@ -6,7 +6,7 @@ import java.util.ArrayList;
 import java.util.Collection;
 
 import org.junit.Test;
-import org.springframework.core.convert.ConversionContext;
+import org.springframework.core.convert.TypeDescriptor;
 import org.springframework.core.convert.support.CollectionToArray;
 import org.springframework.core.convert.support.DefaultTypeConverter;
 
@@ -15,8 +15,8 @@ public class CollectionToArrayTests {
 	@Test
 	public void testCollectionToArrayConversion() throws Exception {
 		DefaultTypeConverter service = new DefaultTypeConverter();
-		CollectionToArray c = new CollectionToArray(new ConversionContext(getClass().getField("bindTarget")),
+		CollectionToArray c = new CollectionToArray(new TypeDescriptor(getClass().getField("bindTarget")),
-				ConversionContext.valueOf(Integer[].class), service);
+				TypeDescriptor.valueOf(Integer[].class), service);
 		bindTarget.add("1");
 		bindTarget.add("2");
 		bindTarget.add("3");
@@ -29,7 +29,7 @@ public class CollectionToArrayTests {
 	@Test
 	public void testCollectionToArrayConversionNoGenericInfo() throws Exception {
 		DefaultTypeConverter service = new DefaultTypeConverter();
-		CollectionToArray c = new CollectionToArray(ConversionContext.valueOf(Collection.class), ConversionContext
+		CollectionToArray c = new CollectionToArray(TypeDescriptor.valueOf(Collection.class), TypeDescriptor
 				.valueOf(Integer[].class), service);
 		bindTarget.add("1");
 		bindTarget.add("2");
@@ -43,7 +43,7 @@ public class CollectionToArrayTests {
 	@Test
 	public void testCollectionToArrayConversionNoGenericInfoNullElement() throws Exception {
 		DefaultTypeConverter service = new DefaultTypeConverter();
-		CollectionToArray c = new CollectionToArray(ConversionContext.valueOf(Collection.class), ConversionContext
+		CollectionToArray c = new CollectionToArray(TypeDescriptor.valueOf(Collection.class), TypeDescriptor
 				.valueOf(Integer[].class), service);
 		bindTarget.add(null);
 		bindTarget.add("1");

org.springframework.core/src/test/java/org/springframework/core/convert/support/CollectionToCollectionTests.java

@@ -8,7 +8,7 @@ import java.util.Collection;
 import java.util.List;
 
 import org.junit.Test;
-import org.springframework.core.convert.ConversionContext;
+import org.springframework.core.convert.TypeDescriptor;
 import org.springframework.core.convert.support.CollectionToCollection;
 import org.springframework.core.convert.support.DefaultTypeConverter;
 
@@ -17,8 +17,8 @@ public class CollectionToCollectionTests {
 	@Test
 	public void testCollectionToCollectionConversion() throws Exception {
 		DefaultTypeConverter service = new DefaultTypeConverter();
-		CollectionToCollection c = new CollectionToCollection(new ConversionContext(getClass().getField("bindTarget")),
+		CollectionToCollection c = new CollectionToCollection(new TypeDescriptor(getClass().getField("bindTarget")),
-				new ConversionContext(getClass().getField("integerTarget")), service);
+				new TypeDescriptor(getClass().getField("integerTarget")), service);
 		bindTarget.add("1");
 		bindTarget.add("2");
 		bindTarget.add("3");
@@ -31,8 +31,8 @@ public class CollectionToCollectionTests {
 	@Test
 	public void testCollectionToCollectionConversionNoGenericInfo() throws Exception {
 		DefaultTypeConverter service = new DefaultTypeConverter();
-		CollectionToCollection c = new CollectionToCollection(ConversionContext.valueOf(Collection.class),
+		CollectionToCollection c = new CollectionToCollection(TypeDescriptor.valueOf(Collection.class),
-				ConversionContext.valueOf(List.class), service);
+				TypeDescriptor.valueOf(List.class), service);
 		bindTarget.add("1");
 		bindTarget.add("2");
 		bindTarget.add("3");
@@ -45,8 +45,8 @@ public class CollectionToCollectionTests {
 	@Test
 	public void testCollectionToCollectionConversionNoGenericInfoSource() throws Exception {
 		DefaultTypeConverter service = new DefaultTypeConverter();
-		CollectionToCollection c = new CollectionToCollection(ConversionContext.valueOf(Collection.class),
+		CollectionToCollection c = new CollectionToCollection(TypeDescriptor.valueOf(Collection.class),
-				new ConversionContext(getClass().getField("integerTarget")), service);
+				new TypeDescriptor(getClass().getField("integerTarget")), service);
 		bindTarget.add("1");
 		bindTarget.add("2");
 		bindTarget.add("3");
@@ -59,8 +59,8 @@ public class CollectionToCollectionTests {
 	@Test
 	public void testCollectionToCollectionConversionNoGenericInfoSourceNullValues() throws Exception {
 		DefaultTypeConverter service = new DefaultTypeConverter();
-		CollectionToCollection c = new CollectionToCollection(ConversionContext.valueOf(Collection.class),
+		CollectionToCollection c = new CollectionToCollection(TypeDescriptor.valueOf(Collection.class),
-				new ConversionContext(getClass().getField("integerTarget")), service);
+				new TypeDescriptor(getClass().getField("integerTarget")), service);
 		bindTarget.add(null);
 		bindTarget.add("1");
 		bindTarget.add("2");
@@ -77,8 +77,8 @@ public class CollectionToCollectionTests {
 	@Test
 	public void testCollectionToCollectionConversionNoGenericInfoSourceEmpty() throws Exception {
 		DefaultTypeConverter service = new DefaultTypeConverter();
-		CollectionToCollection c = new CollectionToCollection(ConversionContext.valueOf(Collection.class),
+		CollectionToCollection c = new CollectionToCollection(TypeDescriptor.valueOf(Collection.class),
-				new ConversionContext(getClass().getField("integerTarget")), service);
+				new TypeDescriptor(getClass().getField("integerTarget")), service);
 		List result = (List) c.execute(bindTarget);
 		assertTrue(result.isEmpty());
 	}

org.springframework.core/src/test/java/org/springframework/core/convert/support/GenericTypeConverterTests.java

@@ -29,7 +29,7 @@ import java.util.Map;
 import org.junit.Ignore;
 import org.junit.Test;
 import org.springframework.core.convert.ConversionFailedException;
-import org.springframework.core.convert.ConversionContext;
+import org.springframework.core.convert.TypeDescriptor;
 import org.springframework.core.convert.ConverterNotFoundException;
 import org.springframework.core.convert.converter.Converter;
 
@@ -88,7 +88,7 @@ public class GenericTypeConverterTests {
 
 	@Test
 	public void convertNullConversionPointType() {
-		assertEquals("3", converter.convert("3", ConversionContext.NULL));
+		assertEquals("3", converter.convert("3", TypeDescriptor.NULL));
 	}
 
 	
@@ -168,7 +168,7 @@ public class GenericTypeConverterTests {
 	@Test
 	public void convertArrayToListGenericTypeConversion() throws Exception {
 		converter.add(new StringToInteger());
-		List<Integer> result = converter.convert(new String[] { "1", "2", "3" }, new ConversionContext<List<Integer>>(getClass().getDeclaredField("genericList")));
+		List<Integer> result = converter.convert(new String[] { "1", "2", "3" }, new TypeDescriptor<List<Integer>>(getClass().getDeclaredField("genericList")));
 		assertEquals(new Integer("1"), result.get(0));
 		assertEquals(new Integer("2"), result.get(1));
 		assertEquals(new Integer("3"), result.get(2));
@@ -226,7 +226,7 @@ public class GenericTypeConverterTests {
 		foo.put("2", "BAZ");
 		converter.add(new StringToInteger());
 		converter.add(new StringToEnumFactory().getConverter(FooEnum.class));
-		Map<String, FooEnum> map = converter.convert(foo, new ConversionContext<Map<String, FooEnum>>(getClass().getField("genericMap")));
+		Map<String, FooEnum> map = converter.convert(foo, new TypeDescriptor<Map<String, FooEnum>>(getClass().getField("genericMap")));
 		assertEquals(map.get(1), FooEnum.BAR);
 		assertEquals(map.get(2), FooEnum.BAZ);
 	}

org.springframework.core/src/test/java/org/springframework/core/convert/support/MapToMapTests.java

@@ -6,7 +6,7 @@ import java.util.HashMap;
 import java.util.Map;
 
 import org.junit.Test;
-import org.springframework.core.convert.ConversionContext;
+import org.springframework.core.convert.TypeDescriptor;
 import org.springframework.core.convert.support.DefaultTypeConverter;
 import org.springframework.core.convert.support.MapToMap;
 
@@ -15,8 +15,8 @@ public class MapToMapTests {
 	@Test
 	public void testMapToMapConversion() throws Exception {
 		DefaultTypeConverter converter = new DefaultTypeConverter();
-		MapToMap c = new MapToMap(new ConversionContext<Map<String, String>>(getClass().getField("source")),
+		MapToMap c = new MapToMap(new TypeDescriptor<Map<String, String>>(getClass().getField("source")),
-				new ConversionContext<Map<String, FooEnum>>(getClass().getField("bindTarget")), converter);
+				new TypeDescriptor<Map<String, FooEnum>>(getClass().getField("bindTarget")), converter);
 		source.put("1", "BAR");
 		source.put("2", "BAZ");
 		Map<String, FooEnum> result = (Map<String, FooEnum>) c.execute(source);
@@ -27,8 +27,8 @@ public class MapToMapTests {
 	@Test
 	public void testMapToMapConversionNoGenericInfoOnSource() throws Exception {
 		DefaultTypeConverter service = new DefaultTypeConverter();
-		MapToMap c = new MapToMap(ConversionContext.valueOf(Map.class),
+		MapToMap c = new MapToMap(TypeDescriptor.valueOf(Map.class),
-				new ConversionContext(getClass().getField("bindTarget")), service);
+				new TypeDescriptor(getClass().getField("bindTarget")), service);
 		source.put("1", "BAR");
 		source.put("2", "BAZ");
 		Map result = (Map) c.execute(source);
@@ -39,8 +39,8 @@ public class MapToMapTests {
 	@Test
 	public void testMapToMapConversionNoGenericInfo() throws Exception {
 		DefaultTypeConverter service = new DefaultTypeConverter();
-		MapToMap c = new MapToMap(ConversionContext.valueOf(Map.class),
+		MapToMap c = new MapToMap(TypeDescriptor.valueOf(Map.class),
-				ConversionContext.valueOf(Map.class), service);
+				TypeDescriptor.valueOf(Map.class), service);
 		source.put("1", "BAR");
 		source.put("2", "BAZ");
 		Map result = (Map) c.execute(source);

org.springframework.expression/src/main/java/org/springframework/expression/TypeConverter.java

@@ -16,7 +16,7 @@
 
 package org.springframework.expression;
 
-import org.springframework.core.convert.ConversionContext;
+import org.springframework.core.convert.TypeDescriptor;
 
 /**
  * A type converter can convert values between different types encountered
@@ -48,7 +48,7 @@ public interface TypeConverter {
 	 * @return the converted value
 	 * @throws EvaluationException if conversion is not possible
 	 */
-	Object convertValue(Object value, ConversionContext typeDescriptor) throws EvaluationException;
+	Object convertValue(Object value, TypeDescriptor typeDescriptor) throws EvaluationException;
 
 	/**
 	 * Return true if the type converter can convert the specified type to the desired target type.
@@ -64,6 +64,6 @@ public interface TypeConverter {
 	 * @param typeDescriptor a type descriptor that supplies extra information about the requested result type
 	 * @return true if that conversion can be performed
 	 */
-	boolean canConvert(Class<?> sourceType, ConversionContext typeDescriptor);
+	boolean canConvert(Class<?> sourceType, TypeDescriptor typeDescriptor);
 
 }

org.springframework.expression/src/main/java/org/springframework/expression/TypedValue.java

@@ -15,7 +15,7 @@
  */
 package org.springframework.expression;
 
-import org.springframework.core.convert.ConversionContext;
+import org.springframework.core.convert.TypeDescriptor;
 
 /**
  * Encapsulates an object and a type descriptor that describes it.
@@ -28,9 +28,9 @@ import org.springframework.core.convert.ConversionContext;
 public class TypedValue {
 
 	private Object value;
-	private ConversionContext typeDescriptor;
+	private TypeDescriptor typeDescriptor;
 	
-	public static final TypedValue NULL_TYPED_VALUE = new TypedValue(null, ConversionContext.NULL);
+	public static final TypedValue NULL_TYPED_VALUE = new TypedValue(null, TypeDescriptor.NULL);
 
 	/**
 	 * Create a TypedValue for a simple object.  The type descriptor is inferred 
@@ -39,7 +39,7 @@ public class TypedValue {
 	 */
 	public TypedValue(Object value) {
 		this.value = value;
-		this.typeDescriptor = ConversionContext.forObject(value);
+		this.typeDescriptor = TypeDescriptor.forObject(value);
 	}
 	
 	/**
@@ -47,7 +47,7 @@ public class TypedValue {
 	 * @param value the object value
 	 * @param typeDescriptor a type descriptor describing the type of the value
 	 */
-	public TypedValue(Object value, ConversionContext typeDescriptor) {
+	public TypedValue(Object value, TypeDescriptor typeDescriptor) {
 		this.value = value;
 		this.typeDescriptor = typeDescriptor;
 	}
@@ -56,7 +56,7 @@ public class TypedValue {
 		return this.value;
 	}
 	
-	public ConversionContext getTypeDescriptor() {
+	public TypeDescriptor getTypeDescriptor() {
 		return this.typeDescriptor;
 	}
 

org.springframework.expression/src/main/java/org/springframework/expression/spel/ExpressionState.java

@@ -20,7 +20,7 @@ import java.util.List;
 import java.util.Map;
 import java.util.Stack;
 
-import org.springframework.core.convert.ConversionContext;
+import org.springframework.core.convert.TypeDescriptor;
 import org.springframework.expression.EvaluationContext;
 import org.springframework.expression.EvaluationException;
 import org.springframework.expression.Operation;
@@ -99,7 +99,7 @@ public class ExpressionState {
 		if (value==null) {
 			return TypedValue.NULL_TYPED_VALUE;
 		} else {
-			return new TypedValue(value,ConversionContext.forObject(value));
+			return new TypedValue(value,TypeDescriptor.forObject(value));
 		}
 	}
 
@@ -111,11 +111,11 @@ public class ExpressionState {
 		return this.relatedContext.getTypeLocator().findType(type);
 	}
 
-	public Object convertValue(Object value, ConversionContext targetTypeDescriptor) throws EvaluationException {
+	public Object convertValue(Object value, TypeDescriptor targetTypeDescriptor) throws EvaluationException {
 		return this.relatedContext.getTypeConverter().convertValue(value, targetTypeDescriptor);
 	}
 	
-	public Object convertValue(TypedValue value, ConversionContext targetTypeDescriptor) throws EvaluationException {
+	public Object convertValue(TypedValue value, TypeDescriptor targetTypeDescriptor) throws EvaluationException {
 		return this.relatedContext.getTypeConverter().convertValue(value.getValue(), targetTypeDescriptor);
 	}
 
@@ -153,7 +153,7 @@ public class ExpressionState {
 		OperatorOverloader overloader = this.relatedContext.getOperatorOverloader();
 		if (overloader.overridesOperation(op, left, right)) {
 			Object returnValue = overloader.operate(op, left, right);
-			return new TypedValue(returnValue,ConversionContext.forObject(returnValue));
+			return new TypedValue(returnValue,TypeDescriptor.forObject(returnValue));
 		}
 		else {
 			String leftType = (left==null?"null":left.getClass().getName());

org.springframework.expression/src/main/java/org/springframework/expression/spel/ast/CommonTypeDescriptors.java

@@ -15,7 +15,7 @@
  */
 package org.springframework.expression.spel.ast;
 
-import org.springframework.core.convert.ConversionContext;
+import org.springframework.core.convert.TypeDescriptor;
 
 /**
  * @author Andy Clement
@@ -23,16 +23,16 @@ import org.springframework.core.convert.ConversionContext;
  */
 public interface CommonTypeDescriptors {
     // TODO push into TypeDescriptor?
-	static ConversionContext BOOLEAN_TYPE_DESCRIPTOR = ConversionContext.valueOf(Boolean.class);
+	static TypeDescriptor BOOLEAN_TYPE_DESCRIPTOR = TypeDescriptor.valueOf(Boolean.class);
-	static ConversionContext INTEGER_TYPE_DESCRIPTOR = ConversionContext.valueOf(Integer.class);
+	static TypeDescriptor INTEGER_TYPE_DESCRIPTOR = TypeDescriptor.valueOf(Integer.class);
-	static ConversionContext CHARACTER_TYPE_DESCRIPTOR = ConversionContext.valueOf(Character.class);
+	static TypeDescriptor CHARACTER_TYPE_DESCRIPTOR = TypeDescriptor.valueOf(Character.class);
-	static ConversionContext LONG_TYPE_DESCRIPTOR = ConversionContext.valueOf(Long.class);
+	static TypeDescriptor LONG_TYPE_DESCRIPTOR = TypeDescriptor.valueOf(Long.class);
-	static ConversionContext SHORT_TYPE_DESCRIPTOR = ConversionContext.valueOf(Short.class);
+	static TypeDescriptor SHORT_TYPE_DESCRIPTOR = TypeDescriptor.valueOf(Short.class);
-	static ConversionContext BYTE_TYPE_DESCRIPTOR = ConversionContext.valueOf(Byte.class);
+	static TypeDescriptor BYTE_TYPE_DESCRIPTOR = TypeDescriptor.valueOf(Byte.class);
-	static ConversionContext FLOAT_TYPE_DESCRIPTOR = ConversionContext.valueOf(Float.class);
+	static TypeDescriptor FLOAT_TYPE_DESCRIPTOR = TypeDescriptor.valueOf(Float.class);
-	static ConversionContext DOUBLE_TYPE_DESCRIPTOR = ConversionContext.valueOf(Double.class);
+	static TypeDescriptor DOUBLE_TYPE_DESCRIPTOR = TypeDescriptor.valueOf(Double.class);
-	static ConversionContext STRING_TYPE_DESCRIPTOR = ConversionContext.valueOf(String.class);
+	static TypeDescriptor STRING_TYPE_DESCRIPTOR = TypeDescriptor.valueOf(String.class);
-	static ConversionContext CLASS_TYPE_DESCRIPTOR = ConversionContext.valueOf(Class.class);
+	static TypeDescriptor CLASS_TYPE_DESCRIPTOR = TypeDescriptor.valueOf(Class.class);
-	static ConversionContext OBJECT_TYPE_DESCRIPTOR = ConversionContext.valueOf(Object.class);
+	static TypeDescriptor OBJECT_TYPE_DESCRIPTOR = TypeDescriptor.valueOf(Object.class);
 	
 }

org.springframework.expression/src/main/java/org/springframework/expression/spel/ast/FunctionReference.java

@@ -22,7 +22,7 @@ import java.lang.reflect.Modifier;
 
 import org.antlr.runtime.Token;
 import org.springframework.core.MethodParameter;
-import org.springframework.core.convert.ConversionContext;
+import org.springframework.core.convert.TypeDescriptor;
 import org.springframework.expression.EvaluationException;
 import org.springframework.expression.TypeConverter;
 import org.springframework.expression.TypedValue;
@@ -104,7 +104,7 @@ public class FunctionReference extends SpelNodeImpl {
 		try {
 			ReflectionUtils.makeAccessible(m);
 			Object result = m.invoke(m.getClass(), functionArgs);
-			return new TypedValue(result, new ConversionContext(new MethodParameter(m,-1)));
+			return new TypedValue(result, new TypeDescriptor(new MethodParameter(m,-1)));
 		} catch (IllegalArgumentException e) {
 			throw new SpelException(getCharPositionInLine(), e, SpelMessages.EXCEPTION_DURING_FUNCTION_CALL, name, e
 					.getMessage());

org.springframework.expression/src/main/java/org/springframework/expression/spel/ast/Indexer.java

@@ -21,7 +21,7 @@ import java.util.List;
 import java.util.Map;
 
 import org.antlr.runtime.Token;
-import org.springframework.core.convert.ConversionContext;
+import org.springframework.core.convert.TypeDescriptor;
 import org.springframework.expression.EvaluationException;
 import org.springframework.expression.TypedValue;
 import org.springframework.expression.spel.ExpressionState;
@@ -47,15 +47,15 @@ public class Indexer extends SpelNodeImpl {
 	public TypedValue getValueInternal(ExpressionState state) throws EvaluationException {
 		TypedValue context = state.getActiveContextObject();
 		Object targetObject = context.getValue();
-		ConversionContext targetObjectTypeDescriptor = context.getTypeDescriptor();
+		TypeDescriptor targetObjectTypeDescriptor = context.getTypeDescriptor();
 		TypedValue indexValue =  getChild(0).getValueInternal(state);
 		Object index = indexValue.getValue();
 
 		// Indexing into a Map
 		if (targetObject instanceof Map) {
-			Object possiblyConvertedKey = state.convertValue(indexValue,ConversionContext.valueOf(targetObjectTypeDescriptor.getMapKeyType()));
+			Object possiblyConvertedKey = state.convertValue(indexValue,TypeDescriptor.valueOf(targetObjectTypeDescriptor.getMapKeyType()));
 			Object o = ((Map<?, ?>) targetObject).get(possiblyConvertedKey);
-			return new TypedValue(o,ConversionContext.valueOf(targetObjectTypeDescriptor.getMapValueType()));
+			return new TypedValue(o,TypeDescriptor.valueOf(targetObjectTypeDescriptor.getMapValueType()));
 		}
 
 		int idx = (Integer)state.convertValue(index, INTEGER_TYPE_DESCRIPTOR);
@@ -65,7 +65,7 @@ public class Indexer extends SpelNodeImpl {
 		}
 		
 		if (targetObject.getClass().isArray()) {
-			return new TypedValue(accessArrayElement(targetObject, idx),ConversionContext.valueOf(targetObjectTypeDescriptor.getElementType()));
+			return new TypedValue(accessArrayElement(targetObject, idx),TypeDescriptor.valueOf(targetObjectTypeDescriptor.getElementType()));
 		} else if (targetObject instanceof Collection) {
 			Collection<?> c = (Collection<?>) targetObject;
 			if (idx >= c.size()) {
@@ -74,7 +74,7 @@ public class Indexer extends SpelNodeImpl {
 			int pos = 0;
 			for (Object o : c) {
 				if (pos == idx) {
-					return new TypedValue(o,ConversionContext.valueOf(targetObjectTypeDescriptor.getElementType()));
+					return new TypedValue(o,TypeDescriptor.valueOf(targetObjectTypeDescriptor.getElementType()));
 				}
 				pos++;
 			}
@@ -99,7 +99,7 @@ public class Indexer extends SpelNodeImpl {
 	public void setValue(ExpressionState state, Object newValue) throws EvaluationException {
 		TypedValue contextObject = state.getActiveContextObject();
 		Object targetObject = contextObject.getValue();
-		ConversionContext targetObjectTypeDescriptor = contextObject.getTypeDescriptor();
+		TypeDescriptor targetObjectTypeDescriptor = contextObject.getTypeDescriptor();
 		TypedValue index = getChild(0).getValueInternal(state);
 
 		if (targetObject == null) {
@@ -108,8 +108,8 @@ public class Indexer extends SpelNodeImpl {
 		// Indexing into a Map
 		if (targetObjectTypeDescriptor.isMap()) {
 			Map map = (Map)targetObject;
-			Object possiblyConvertedKey = state.convertValue(index.getValue(),ConversionContext.valueOf(targetObjectTypeDescriptor.getMapKeyType()));
+			Object possiblyConvertedKey = state.convertValue(index.getValue(),TypeDescriptor.valueOf(targetObjectTypeDescriptor.getMapKeyType()));
-			Object possiblyConvertedValue = state.convertValue(newValue,ConversionContext.valueOf(targetObjectTypeDescriptor.getMapValueType()));
+			Object possiblyConvertedValue = state.convertValue(newValue,TypeDescriptor.valueOf(targetObjectTypeDescriptor.getMapValueType()));
 			map.put(possiblyConvertedKey,possiblyConvertedValue);
 			return;
 		}
@@ -125,7 +125,7 @@ public class Indexer extends SpelNodeImpl {
 			}
 			if (targetObject instanceof List) {
 				List list = (List)targetObject;
-				Object possiblyConvertedValue = state.convertValue(newValue,ConversionContext.valueOf(targetObjectTypeDescriptor.getElementType()));
+				Object possiblyConvertedValue = state.convertValue(newValue,TypeDescriptor.valueOf(targetObjectTypeDescriptor.getElementType()));
 				list.set(idx,possiblyConvertedValue);
 			} else {
 				throw new SpelException(SpelMessages.INDEXING_NOT_SUPPORTED_FOR_TYPE, contextObject.getClass().getName());
@@ -185,7 +185,7 @@ public class Indexer extends SpelNodeImpl {
 		} else {
 			Object[] array = (Object[]) ctx;
 			checkAccess(array.length, idx);
-			array[idx] = state.convertValue(newValue, ConversionContext.valueOf(clazz));
+			array[idx] = state.convertValue(newValue, TypeDescriptor.valueOf(clazz));
 		}		
 	}
 	

org.springframework.expression/src/main/java/org/springframework/expression/spel/ast/OperatorDivide.java

@@ -17,7 +17,7 @@
 package org.springframework.expression.spel.ast;
 
 import org.antlr.runtime.Token;
-import org.springframework.core.convert.ConversionContext;
+import org.springframework.core.convert.TypeDescriptor;
 import org.springframework.expression.EvaluationException;
 import org.springframework.expression.Operation;
 import org.springframework.expression.TypedValue;
@@ -56,7 +56,7 @@ public class OperatorDivide extends Operator {
 			}
 		}
 		Object result = state.operate(Operation.DIVIDE, operandOne, operandTwo);
-		return new TypedValue(result,ConversionContext.forObject(result));
+		return new TypedValue(result,TypeDescriptor.forObject(result));
 	}
 
 }

org.springframework.expression/src/main/java/org/springframework/expression/spel/ast/Projection.java

@@ -22,7 +22,7 @@ import java.util.List;
 import java.util.Map;
 
 import org.antlr.runtime.Token;
-import org.springframework.core.convert.ConversionContext;
+import org.springframework.core.convert.TypeDescriptor;
 import org.springframework.expression.EvaluationException;
 import org.springframework.expression.TypedValue;
 import org.springframework.expression.spel.ExpressionState;
@@ -60,13 +60,13 @@ public class Projection extends SpelNodeImpl {
 			List<Object> result = new ArrayList<Object>();
 			for (Map.Entry entry : mapdata.entrySet()) {
 				try {
-					state.pushActiveContextObject(new TypedValue(entry,ConversionContext.valueOf(Map.Entry.class)));
+					state.pushActiveContextObject(new TypedValue(entry,TypeDescriptor.valueOf(Map.Entry.class)));
 					result.add(getChild(0).getValueInternal(state).getValue());
 				} finally {
 					state.popActiveContextObject();
 				}
 			}
-			return new TypedValue(result,ConversionContext.valueOf(List.class)); // TODO unable to build correct type descriptor
+			return new TypedValue(result,TypeDescriptor.valueOf(List.class)); // TODO unable to build correct type descriptor
 		} else if (operand instanceof List) {
 			List<Object> data = new ArrayList<Object>();
 			data.addAll((Collection<?>) operand);
@@ -74,7 +74,7 @@ public class Projection extends SpelNodeImpl {
 			int idx = 0;
 			for (Object element : data) {
 				try {
-					state.pushActiveContextObject(new TypedValue(element,ConversionContext.valueOf(op.getTypeDescriptor().getType())));
+					state.pushActiveContextObject(new TypedValue(element,TypeDescriptor.valueOf(op.getTypeDescriptor().getType())));
 					state.enterScope("index", idx);
 					result.add(getChild(0).getValueInternal(state).getValue());
 				} finally {

org.springframework.expression/src/main/java/org/springframework/expression/spel/ast/Selection.java

@@ -23,7 +23,7 @@ import java.util.List;
 import java.util.Map;
 
 import org.antlr.runtime.Token;
-import org.springframework.core.convert.ConversionContext;
+import org.springframework.core.convert.TypeDescriptor;
 import org.springframework.expression.EvaluationException;
 import org.springframework.expression.TypedValue;
 import org.springframework.expression.spel.ExpressionState;
@@ -66,7 +66,7 @@ public class Selection extends SpelNodeImpl {
 			for (Map.Entry entry : mapdata.entrySet()) {
 				try {
 					lastKey = entry.getKey();
-					TypedValue kvpair = new TypedValue(entry,ConversionContext.valueOf(Map.Entry.class));
+					TypedValue kvpair = new TypedValue(entry,TypeDescriptor.valueOf(Map.Entry.class));
 					state.pushActiveContextObject(kvpair);
 					Object o = selectionCriteria.getValueInternal(state).getValue();
 					if (o instanceof Boolean) {
@@ -86,13 +86,13 @@ public class Selection extends SpelNodeImpl {
 				}
 			}
 			if ((variant == FIRST || variant == LAST) && result.size() == 0) {
-				return new TypedValue(null,ConversionContext.NULL);
+				return new TypedValue(null,TypeDescriptor.NULL);
 			}
 			if (variant == LAST) {
 				Map resultMap = new HashMap();
 				Object lastValue = result.get(lastKey);
 				resultMap.put(lastKey,lastValue);
-				return new TypedValue(resultMap,ConversionContext.valueOf(Map.class));
+				return new TypedValue(resultMap,TypeDescriptor.valueOf(Map.class));
 			}
 			return new TypedValue(result,op.getTypeDescriptor());
 		} else if (operand instanceof Collection) {
@@ -102,13 +102,13 @@ public class Selection extends SpelNodeImpl {
 			int idx = 0;
 			for (Object element : data) {
 				try {
-					state.pushActiveContextObject(new TypedValue(element,ConversionContext.valueOf(op.getTypeDescriptor().getElementType())));
+					state.pushActiveContextObject(new TypedValue(element,TypeDescriptor.valueOf(op.getTypeDescriptor().getElementType())));
 					state.enterScope("index", idx);
 					Object o = selectionCriteria.getValueInternal(state).getValue();
 					if (o instanceof Boolean) {
 						if (((Boolean) o).booleanValue() == true) {
 							if (variant == FIRST) {
-								return new TypedValue(element,ConversionContext.valueOf(op.getTypeDescriptor().getElementType()));
+								return new TypedValue(element,TypeDescriptor.valueOf(op.getTypeDescriptor().getElementType()));
 							}
 							result.add(element);
 						}
@@ -126,7 +126,7 @@ public class Selection extends SpelNodeImpl {
 				return TypedValue.NULL_TYPED_VALUE;
 			}
 			if (variant == LAST) {
-				return new TypedValue(result.get(result.size() - 1),ConversionContext.valueOf(op.getTypeDescriptor().getElementType()));
+				return new TypedValue(result.get(result.size() - 1),TypeDescriptor.valueOf(op.getTypeDescriptor().getElementType()));
 			}
 			return new TypedValue(result,op.getTypeDescriptor());
 		} else {

org.springframework.expression/src/main/java/org/springframework/expression/spel/support/ReflectiveConstructorExecutor.java

@@ -18,7 +18,7 @@ package org.springframework.expression.spel.support;
 
 import java.lang.reflect.Constructor;
 
-import org.springframework.core.convert.ConversionContext;
+import org.springframework.core.convert.TypeDescriptor;
 import org.springframework.expression.AccessException;
 import org.springframework.expression.ConstructorExecutor;
 import org.springframework.expression.EvaluationContext;
@@ -56,7 +56,7 @@ class ReflectiveConstructorExecutor implements ConstructorExecutor {
 			if (!c.isAccessible()) {
 				c.setAccessible(true);
 			}
-			return new TypedValue(c.newInstance(arguments),ConversionContext.valueOf(c.getClass()));
+			return new TypedValue(c.newInstance(arguments),TypeDescriptor.valueOf(c.getClass()));
 		} catch (Exception ex) {
 			throw new AccessException("Problem invoking constructor: " + c, ex);
 		}

org.springframework.expression/src/main/java/org/springframework/expression/spel/support/ReflectiveMethodExecutor.java

@@ -19,7 +19,7 @@ package org.springframework.expression.spel.support;
 import java.lang.reflect.Method;
 
 import org.springframework.core.MethodParameter;
-import org.springframework.core.convert.ConversionContext;
+import org.springframework.core.convert.TypeDescriptor;
 import org.springframework.expression.AccessException;
 import org.springframework.expression.EvaluationContext;
 import org.springframework.expression.MethodExecutor;
@@ -55,7 +55,7 @@ class ReflectiveMethodExecutor implements MethodExecutor {
 				arguments = ReflectionHelper.setupArgumentsForVarargsInvocation(this.method.getParameterTypes(), arguments);
 			}
 			ReflectionUtils.makeAccessible(this.method);
-			return new TypedValue(this.method.invoke(target, arguments), new ConversionContext(new MethodParameter(method,-1)));
+			return new TypedValue(this.method.invoke(target, arguments), new TypeDescriptor(new MethodParameter(method,-1)));
 		} catch (Exception ex) {
 			throw new AccessException("Problem invoking method: " + this.method, ex);
 		}

org.springframework.expression/src/main/java/org/springframework/expression/spel/support/ReflectivePropertyResolver.java

@@ -25,7 +25,7 @@ import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
 
 import org.springframework.core.MethodParameter;
-import org.springframework.core.convert.ConversionContext;
+import org.springframework.core.convert.TypeDescriptor;
 import org.springframework.expression.AccessException;
 import org.springframework.expression.EvaluationContext;
 import org.springframework.expression.EvaluationException;
@@ -48,7 +48,7 @@ public class ReflectivePropertyResolver implements PropertyAccessor {
 
 	protected final Map<CacheKey, Member> writerCache = new ConcurrentHashMap<CacheKey, Member>();
 	
-	protected final Map<CacheKey, ConversionContext> typeDescriptorCache = new ConcurrentHashMap<CacheKey,ConversionContext>();
+	protected final Map<CacheKey, TypeDescriptor> typeDescriptorCache = new ConcurrentHashMap<CacheKey,TypeDescriptor>();
 
 	/**
 	 * @return null which means this is a general purpose accessor
@@ -72,14 +72,14 @@ public class ReflectivePropertyResolver implements PropertyAccessor {
 		Method method = findGetterForProperty(name, type, target instanceof Class);
 		if (method != null) {
 			this.readerCache.put(cacheKey, method);
-			this.typeDescriptorCache.put(cacheKey, new ConversionContext(new MethodParameter(method,-1)));
+			this.typeDescriptorCache.put(cacheKey, new TypeDescriptor(new MethodParameter(method,-1)));
 			return true;
 		}
 		else {
 			Field field = findField(name, type, target instanceof Class);
 			if (field != null) {
 				this.readerCache.put(cacheKey, field);	
-				this.typeDescriptorCache.put(cacheKey, new ConversionContext(field));
+				this.typeDescriptorCache.put(cacheKey, new TypeDescriptor(field));
 				return true;
 			}
 		}
@@ -96,7 +96,7 @@ public class ReflectivePropertyResolver implements PropertyAccessor {
 			if (target instanceof Class) {
 				throw new AccessException("Cannot access length on array class itself");
 			}
-			return new TypedValue(Array.getLength(target),ConversionContext.valueOf(Integer.TYPE));
+			return new TypedValue(Array.getLength(target),TypeDescriptor.valueOf(Integer.TYPE));
 		}
 
 		CacheKey cacheKey = new CacheKey(type, name);
@@ -114,7 +114,7 @@ public class ReflectivePropertyResolver implements PropertyAccessor {
 			if (method != null) {
 				try {
 					ReflectionUtils.makeAccessible(method);
-					ConversionContext resultTypeDescriptor = new ConversionContext(new MethodParameter(method,-1));
+					TypeDescriptor resultTypeDescriptor = new TypeDescriptor(new MethodParameter(method,-1));
 					return new TypedValue(method.invoke(target),resultTypeDescriptor);
 				}
 				catch (Exception ex) {
@@ -135,7 +135,7 @@ public class ReflectivePropertyResolver implements PropertyAccessor {
 			if (field != null) {
 				try {
 					ReflectionUtils.makeAccessible(field);
-					return new TypedValue(field.get(target),new ConversionContext(field));
+					return new TypedValue(field.get(target),new TypeDescriptor(field));
 				}
 				catch (Exception ex) {
 					throw new AccessException("Unable to access field: " + name, ex);
@@ -158,14 +158,14 @@ public class ReflectivePropertyResolver implements PropertyAccessor {
 		Method method = findSetterForProperty(name, type, target instanceof Class);
 		if (method != null) {
 			this.writerCache.put(cacheKey, method);
-			this.typeDescriptorCache.put(cacheKey, new ConversionContext(new MethodParameter(method,0)));
+			this.typeDescriptorCache.put(cacheKey, new TypeDescriptor(new MethodParameter(method,0)));
 			return true;
 		}
 		else {
 			Field field = findField(name, type, target instanceof Class);
 			if (field != null) {
 				this.writerCache.put(cacheKey, field);
-				this.typeDescriptorCache.put(cacheKey, new ConversionContext(field));
+				this.typeDescriptorCache.put(cacheKey, new TypeDescriptor(field));
 				return true;
 			}
 		}
@@ -179,7 +179,7 @@ public class ReflectivePropertyResolver implements PropertyAccessor {
 		Class<?> type = (target instanceof Class ? (Class<?>) target : target.getClass());
 
 		Object possiblyConvertedNewValue = newValue;
-		ConversionContext typeDescriptor = getTypeDescriptor(context, target, name);
+		TypeDescriptor typeDescriptor = getTypeDescriptor(context, target, name);
 		if (typeDescriptor != null) {
 			try {
 				possiblyConvertedNewValue = context.getTypeConverter().convertValue(newValue, typeDescriptor);
@@ -236,17 +236,17 @@ public class ReflectivePropertyResolver implements PropertyAccessor {
 		throw new AccessException("Neither setter nor field found for property '" + name + "'");
 	}
 	
-	private ConversionContext getTypeDescriptor(EvaluationContext context, Object target, String name) {
+	private TypeDescriptor getTypeDescriptor(EvaluationContext context, Object target, String name) {
 		if (target == null) {
 			return null;
 		}
 		Class<?> type = (target instanceof Class ? (Class<?>) target : target.getClass());
 
 		if (type.isArray() && name.equals("length")) {
-			return ConversionContext.valueOf(Integer.TYPE);
+			return TypeDescriptor.valueOf(Integer.TYPE);
 		}
 		CacheKey cacheKey = new CacheKey(type, name);
-		ConversionContext typeDescriptor =  this.typeDescriptorCache.get(cacheKey);
+		TypeDescriptor typeDescriptor =  this.typeDescriptorCache.get(cacheKey);
 		if (typeDescriptor == null) {
 			// attempt to populate the cache entry
 			try {

org.springframework.expression/src/main/java/org/springframework/expression/spel/support/StandardEvaluationContext.java

@@ -22,7 +22,7 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
-import org.springframework.core.convert.ConversionContext;
+import org.springframework.core.convert.TypeDescriptor;
 import org.springframework.expression.ConstructorResolver;
 import org.springframework.expression.EvaluationContext;
 import org.springframework.expression.MethodResolver;
@@ -75,10 +75,10 @@ public class StandardEvaluationContext implements EvaluationContext {
 	}
 
 	public void setRootObject(Object rootObject) {
-		this.rootObject = new TypedValue(rootObject,ConversionContext.forObject(rootObject));
+		this.rootObject = new TypedValue(rootObject,TypeDescriptor.forObject(rootObject));
 	}
 
-	public void setRootObject(Object rootObject, ConversionContext typeDescriptor) {
+	public void setRootObject(Object rootObject, TypeDescriptor typeDescriptor) {
 		this.rootObject = new TypedValue(rootObject,typeDescriptor);
 	}
 

org.springframework.expression/src/main/java/org/springframework/expression/spel/support/StandardTypeConverter.java

@@ -18,7 +18,7 @@ package org.springframework.expression.spel.support;
 
 import org.springframework.core.convert.ConvertException;
 import org.springframework.core.convert.ConverterNotFoundException;
-import org.springframework.core.convert.ConversionContext;
+import org.springframework.core.convert.TypeDescriptor;
 import org.springframework.core.convert.support.DefaultTypeConverter;
 import org.springframework.expression.EvaluationException;
 import org.springframework.expression.TypeConverter;
@@ -46,11 +46,11 @@ public class StandardTypeConverter implements TypeConverter {
 
 	@SuppressWarnings("unchecked")
 	public <T> T convertValue(Object value, Class<T> targetType) throws EvaluationException {
-		return (T) convertValue(value, ConversionContext.valueOf(targetType));
+		return (T) convertValue(value, TypeDescriptor.valueOf(targetType));
 	}
 
 	@SuppressWarnings("unchecked")
-	public Object convertValue(Object value, ConversionContext typeDescriptor) throws EvaluationException {
+	public Object convertValue(Object value, TypeDescriptor typeDescriptor) throws EvaluationException {
 		try {
 			return this.typeConverter.convert(value, typeDescriptor);
 		}
@@ -63,10 +63,10 @@ public class StandardTypeConverter implements TypeConverter {
 	}
 
 	public boolean canConvert(Class<?> sourceType, Class<?> targetType) {
-		return canConvert(sourceType, ConversionContext.valueOf(targetType));
+		return canConvert(sourceType, TypeDescriptor.valueOf(targetType));
 	}
 
-	public boolean canConvert(Class<?> sourceType, ConversionContext targetType) {
+	public boolean canConvert(Class<?> sourceType, TypeDescriptor targetType) {
 		return this.typeConverter.canConvert(sourceType, targetType);
 	}
 

org.springframework.expression/src/test/java/org/springframework/expression/spel/ExpressionLanguageScenarioTests.java

@@ -23,7 +23,7 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
-import org.springframework.core.convert.ConversionContext;
+import org.springframework.core.convert.TypeDescriptor;
 import org.springframework.expression.AccessException;
 import org.springframework.expression.EvaluationContext;
 import org.springframework.expression.EvaluationException;
@@ -236,7 +236,7 @@ public class ExpressionLanguageScenarioTests extends ExpressionTestCase {
 	private static class FruitColourAccessor implements PropertyAccessor {
 
 		private static Map<String,Color> propertyMap = new HashMap<String,Color>();
-		private static ConversionContext mapElementTypeDescriptor = ConversionContext.valueOf(Color.class);
+		private static TypeDescriptor mapElementTypeDescriptor = TypeDescriptor.valueOf(Color.class);
 
 		static {
 			propertyMap.put("banana",Color.yellow);
@@ -295,7 +295,7 @@ public class ExpressionLanguageScenarioTests extends ExpressionTestCase {
 		}
 
 		public TypedValue read(EvaluationContext context, Object target, String name) throws AccessException {
-			return new TypedValue(propertyMap.get(name),ConversionContext.valueOf(Color.class));
+			return new TypedValue(propertyMap.get(name),TypeDescriptor.valueOf(Color.class));
 		}
 
 		public boolean canWrite(EvaluationContext context, Object target, String name) throws AccessException {

org.springframework.expression/src/test/java/org/springframework/expression/spel/ExpressionStateTests.java

@@ -18,7 +18,7 @@ package org.springframework.expression.spel;
 import java.util.HashMap;
 import java.util.Map;
 
-import org.springframework.core.convert.ConversionContext;
+import org.springframework.core.convert.TypeDescriptor;
 import org.springframework.expression.EvaluationContext;
 import org.springframework.expression.EvaluationException;
 import org.springframework.expression.Operation;
@@ -117,7 +117,7 @@ public class ExpressionStateTests extends ExpressionTestCase {
 		assertEquals(TypedValue.NULL_TYPED_VALUE,state.getRootContextObject());
 		
 
-		((StandardEvaluationContext)state.getEvaluationContext()).setRootObject(null,ConversionContext.NULL);
+		((StandardEvaluationContext)state.getEvaluationContext()).setRootObject(null,TypeDescriptor.NULL);
 		assertEquals(null,state.getRootContextObject().getValue());
 	}
 	
@@ -222,10 +222,10 @@ public class ExpressionStateTests extends ExpressionTestCase {
 	
 	public void testTypeConversion() throws EvaluationException {
 		ExpressionState state = getState();
-		String s = (String)state.convertValue(34,ConversionContext.valueOf(String.class));
+		String s = (String)state.convertValue(34,TypeDescriptor.valueOf(String.class));
 		assertEquals("34",s);
 
-		s = (String)state.convertValue(new TypedValue(34),ConversionContext.valueOf(String.class));
+		s = (String)state.convertValue(new TypedValue(34),TypeDescriptor.valueOf(String.class));
 		assertEquals("34",s);
 	}
 

org.springframework.expression/src/test/java/org/springframework/expression/spel/ExpressionTestsUsingCoreConversionService.java

@@ -19,7 +19,7 @@ package org.springframework.expression.spel;
 import java.util.ArrayList;
 import java.util.List;
 
-import org.springframework.core.convert.ConversionContext;
+import org.springframework.core.convert.TypeDescriptor;
 import org.springframework.core.convert.support.DefaultTypeConverter;
 import org.springframework.core.convert.support.GenericTypeConverter;
 import org.springframework.expression.EvaluationException;
@@ -35,9 +35,9 @@ import org.springframework.expression.spel.support.StandardEvaluationContext;
 public class ExpressionTestsUsingCoreConversionService extends ExpressionTestCase {
 
 	private static List<String> listOfString = new ArrayList<String>();
-	private static ConversionContext typeDescriptorForListOfString = null;
+	private static TypeDescriptor typeDescriptorForListOfString = null;
 	private static List<Integer> listOfInteger = new ArrayList<Integer>();
-	private static ConversionContext typeDescriptorForListOfInteger = null;
+	private static TypeDescriptor typeDescriptorForListOfInteger = null;
 	
 	static {
 		listOfString.add("1");
@@ -50,8 +50,8 @@ public class ExpressionTestsUsingCoreConversionService extends ExpressionTestCas
 	
 	public void setUp() throws Exception {
 		super.setUp();
-		typeDescriptorForListOfString = new ConversionContext(ExpressionTestsUsingCoreConversionService.class.getDeclaredField("listOfString"));
+		typeDescriptorForListOfString = new TypeDescriptor(ExpressionTestsUsingCoreConversionService.class.getDeclaredField("listOfString"));
-		typeDescriptorForListOfInteger = new ConversionContext(ExpressionTestsUsingCoreConversionService.class.getDeclaredField("listOfInteger"));
+		typeDescriptorForListOfInteger = new TypeDescriptor(ExpressionTestsUsingCoreConversionService.class.getDeclaredField("listOfInteger"));
 	}
 		
 	
@@ -96,20 +96,20 @@ public class ExpressionTestsUsingCoreConversionService extends ExpressionTestCas
 		private final DefaultTypeConverter service = new DefaultTypeConverter();
 
 		public boolean canConvert(Class<?> sourceType, Class<?> targetType) {
-			return this.service.canConvert(sourceType, ConversionContext.valueOf(targetType));
+			return this.service.canConvert(sourceType, TypeDescriptor.valueOf(targetType));
 		}
 
-		public boolean canConvert(Class<?> sourceType, ConversionContext typeDescriptor) {
+		public boolean canConvert(Class<?> sourceType, TypeDescriptor typeDescriptor) {
 			return this.service.canConvert(sourceType, typeDescriptor);
 		}
 
 		@SuppressWarnings("unchecked")
 		public <T> T convertValue(Object value, Class<T> targetType) throws EvaluationException {
-			return (T) this.service.convert(value,ConversionContext.valueOf(targetType));
+			return (T) this.service.convert(value,TypeDescriptor.valueOf(targetType));
 		}
 
 		@SuppressWarnings("unchecked")
-		public Object convertValue(Object value, ConversionContext typeDescriptor) throws EvaluationException {
+		public Object convertValue(Object value, TypeDescriptor typeDescriptor) throws EvaluationException {
 			return this.service.convert(value, typeDescriptor);
 		}
 	}

org.springframework.expression/src/test/java/org/springframework/expression/spel/ScenariosForSpringSecurity.java

@@ -19,7 +19,7 @@ package org.springframework.expression.spel;
 import java.lang.reflect.Method;
 
 import org.springframework.core.MethodParameter;
-import org.springframework.core.convert.ConversionContext;
+import org.springframework.core.convert.TypeDescriptor;
 import org.springframework.expression.AccessException;
 import org.springframework.expression.EvaluationContext;
 import org.springframework.expression.EvaluationException;
@@ -214,7 +214,7 @@ public class ScenariosForSpringSecurity extends ExpressionTestCase {
 		}
 
 		public TypedValue read(EvaluationContext context, Object target, String name) throws AccessException {
-			return new TypedValue(new Principal(),ConversionContext.valueOf(Principal.class));
+			return new TypedValue(new Principal(),TypeDescriptor.valueOf(Principal.class));
 		}
 
 		public boolean canWrite(EvaluationContext context, Object target, String name) throws AccessException {
@@ -244,7 +244,7 @@ public class ScenariosForSpringSecurity extends ExpressionTestCase {
 		}
 
 		public TypedValue read(EvaluationContext context, Object target, String name) throws AccessException {
-			return new TypedValue(activePerson,ConversionContext.valueOf(Person.class));
+			return new TypedValue(activePerson,TypeDescriptor.valueOf(Person.class));
 		}
 
 		public boolean canWrite(EvaluationContext context, Object target, String name) throws AccessException {
@@ -283,7 +283,7 @@ public class ScenariosForSpringSecurity extends ExpressionTestCase {
 					if (m.isVarArgs()) {
 						args = ReflectionHelper.setupArgumentsForVarargsInvocation(m.getParameterTypes(), args);
 					}
-					return new TypedValue(m.invoke(null, args), new ConversionContext(new MethodParameter(m,-1)));
+					return new TypedValue(m.invoke(null, args), new TypeDescriptor(new MethodParameter(m,-1)));
 				}
 				catch (Exception ex) {
 					throw new AccessException("Problem invoking hasRole", ex);