converter system refactoring from community input

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

@@ -22,22 +22,13 @@ import org.springframework.core.style.StylerUtils;
  * 
  * @author Keith Donald
  */
-public class ConversionExecutionException extends ConvertException {
+public class ConversionException extends ConvertException {
 
-	/**
-	 * The value we tried to convert. Transient because we cannot guarantee that the value is Serializable.
-	 */
 	private transient Object value;
 
-	/**
-	 * The source type we tried to convert the value from.
-	 */
 	private Class<?> sourceType;
 
-	/**
-	 * The target type we tried to convert the value to.
-	 */
-	private TypeDescriptor targetType;
+	private Class<?> targetType;
 
 	/**
 	 * Creates a new conversion exception.
@@ -46,7 +37,7 @@ public class ConversionExecutionException extends ConvertException {
 	 * @param targetType the value's target type
 	 * @param cause the cause of the conversion failure
 	 */
-	public ConversionExecutionException(Object value, Class<?> sourceType, TypeDescriptor targetType, Throwable cause) {
+	public ConversionException(Object value, Class<?> sourceType, Class<?> targetType, Throwable cause) {
 		super(defaultMessage(value, sourceType, targetType, cause), cause);
 		this.value = value;
 		this.sourceType = sourceType;
@@ -60,7 +51,7 @@ public class ConversionExecutionException extends ConvertException {
 	 * @param targetType the value's target type
 	 * @param message a descriptive message of what went wrong.
 	 */
-	public ConversionExecutionException(Object value, Class<?> sourceType, TypeDescriptor targetType, String message) {
+	public ConversionException(Object value, Class<?> sourceType, Class<?> targetType, String message) {
 		super(message);
 		this.value = value;
 		this.sourceType = sourceType;
@@ -84,11 +75,11 @@ public class ConversionExecutionException extends ConvertException {
 	/**
 	 * Returns the target type we tried to convert the value to.
 	 */
-	public TypeDescriptor getTargetType() {
+	public Class<?> getTargetType() {
 		return targetType;
 	}
 
-	private static String defaultMessage(Object value, Class<?> sourceType, TypeDescriptor targetType, Throwable cause) {
+	private static String defaultMessage(Object value, Class<?> sourceType, Class<?> targetType, Throwable cause) {
 		return "Unable to convert value " + StylerUtils.style(value) + " from type [" + sourceType.getName()
 				+ "] to type [" + targetType.getName() + "]; reason = '" + cause.getMessage() + "'";
 	}

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

@@ -24,7 +24,7 @@ public class ConverterNotFoundException extends ConvertException {
 
 	private Class<?> sourceType;
 
-	private TypeDescriptor targetType;
+	private Class<?> targetType;
 
 	/**
 	 * Creates a new conversion executor not found exception.
@@ -32,7 +32,7 @@ public class ConverterNotFoundException extends ConvertException {
 	 * @param targetType the target type requested to convert to
 	 * @param message a descriptive message
 	 */
-	public ConverterNotFoundException(Class<?> sourceType, TypeDescriptor targetType, String message) {
+	public ConverterNotFoundException(Class<?> sourceType, Class<?> targetType, String message) {
 		super(message);
 		this.sourceType = sourceType;
 		this.targetType = targetType;
@@ -48,7 +48,7 @@ public class ConverterNotFoundException extends ConvertException {
 	/**
 	 * Returns the target type that was requested to convert to.
 	 */
-	public TypeDescriptor getTargetType() {
+	public Class<?> getTargetType() {
 		return targetType;
 	}
 }

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

@@ -23,7 +23,7 @@ package org.springframework.core.convert;
  * 
  * @author Keith Donald
  */
-public interface ConversionService {
+public interface TypeConverter {
 
 	/**
 	 * Returns true if objects of sourceType can be converted to targetType.
@@ -31,7 +31,7 @@ public interface ConversionService {
 	 * @param targetType context about the target type to convert to
 	 * @return true if a conversion can be performed, false if not
 	 */
-	public boolean canConvert(Class<?> sourceType, TypeDescriptor targetType);
+	boolean canConvert(Class<?> sourceType, TypeDescriptor<?> targetType);
 
 	/**
 	 * Convert the source to targetType.
@@ -39,8 +39,8 @@ public interface ConversionService {
 	 * @param targetType context about the target type to convert to
 	 * @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 during the conversion process
+	 * @throws ConvertException if an exception occurred
 	 */
-	public Object convert(Object source, TypeDescriptor targetType);
+	<S, T> T convert(S source, TypeDescriptor<T> targetType);
 
 }

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

@@ -32,7 +32,7 @@ import org.springframework.util.Assert;
  * @author Keith Donald
  * @author Andy Clement
  */
-public class TypeDescriptor {
+public class TypeDescriptor<T> {
 
 	/**
 	 * Constant value typeDescriptor for the type of a null value

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

@@ -16,13 +16,13 @@
 package org.springframework.core.convert.converter;
 
 import org.springframework.core.convert.ConvertException;
-import org.springframework.core.convert.ConversionService;
+import org.springframework.core.convert.TypeConverter;
 
 /**
  * A converter converts a source object of type S to a target of type T and back.
  * <p>
  * Implementations of this interface are thread-safe and can be shared. Converters are typically registered with and
- * accessed through a {@link ConversionService}.
+ * accessed through a {@link TypeConverter}.
  * </p>
  * @author Keith Donald
  */
@@ -36,6 +36,6 @@ public interface Converter<S, T> {
 	 * system will handle wrapping the failure in a {@link ConvertException} that provides a consistent type
 	 * conversion error context
 	 */
-	public T convert(S source) throws Exception;
+	T convert(S source) throws Exception;
 
 }

org.springframework.core/src/main/java/org/springframework/core/convert/converter/ConverterFactory.java

@@ -0,0 +1,20 @@
+/*
+ * Copyright 2004-2009 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.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.core.convert.converter;
+
+public interface ConverterFactory<S, R> {
+	<T extends R> Converter<S, T> getConverter(Class<T> targetType);
+}

org.springframework.core/src/main/java/org/springframework/core/convert/converter/ConverterInfo.java

@@ -15,11 +15,11 @@
  */
 package org.springframework.core.convert.converter;
 
-import org.springframework.core.convert.ConversionService;
+import org.springframework.core.convert.TypeConverter;
 
 /**
  * A meta interface a Converter may implement to describe what types he can convert between.
- * Implementing this interface is required for converters that do not declare their parameterized types S and T and expect to be registered with a {@link ConversionService}.
+ * Implementing this interface is required for converters that do not declare their parameterized types S and T and expect to be registered with a {@link TypeConverter}.
  * @see Converter
  * @see SuperConverter
  */

org.springframework.core/src/main/java/org/springframework/core/convert/converter/ObjectToString.java

@@ -1,17 +0,0 @@
-package org.springframework.core.convert.converter;
-
-import org.springframework.core.convert.service.DefaultConversionService;
-
-/**
- * Simply calls {@link Object#toString()} to convert any object to a string.
- * Used by the {@link DefaultConversionService} as a fallback if there are no other explicit to string converters registered.
- * @author Keith Donald
- */
-public class ObjectToString implements SuperConverter<Object, String> {
-
-	@SuppressWarnings("unchecked")
-	public <RT extends String> RT convert(Object source, Class<RT> targetClass) {
-		return (RT) source.toString();
-	}
-	
-}

org.springframework.core/src/main/java/org/springframework/core/convert/converter/StringToBoolean.java

@@ -1,71 +0,0 @@
-/*
- * Copyright 2004-2009 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.
- * You may obtain a copy of the License at
- * 
- *      http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.springframework.core.convert.converter;
-
-import org.springframework.util.Assert;
-
-/**
- * Converts String to a Boolean.  The trueString and falseStrings are configurable.
- * 
- * @see #StringToBoolean(String, String)
- * @author Keith Donald
- */
-public class StringToBoolean implements TwoWayConverter<String, Boolean> {
-
-	private String trueString;
-
-	private String falseString;
-
-	/**
-	 * Create a StringToBoolean converter with the default 'true' and 'false' strings.
-	 */
-	public StringToBoolean() {
-		this("true", "false");
-	}
-
-	/**
-	 * Create a StringToBoolean converter configured with specific values for true and false strings.
-	 * @param trueString special true string to use (required)
-	 * @param falseString special false string to use (required)
-	 */
-	public StringToBoolean(String trueString, String falseString) {
-		Assert.hasText(trueString, "The true string is required");
-		Assert.hasText(falseString, "The false string is required");		
-		this.trueString = trueString;
-		this.falseString = falseString;
-	}
-
-	public Boolean convert(String source) {
-		if (source.equals(trueString)) {
-			return Boolean.TRUE;
-		} else if (source.equals(falseString)) {
-			return Boolean.FALSE;
-		} else {
-			throw new IllegalArgumentException("Invalid boolean string '" + source + "'; expected '" + trueString + "' or '" + falseString + "'");
-		}
-	}
-
-	public String convertBack(Boolean target) {
-		if (Boolean.TRUE.equals(target)) {
-			return trueString;
-		} else if (Boolean.FALSE.equals(target)) {
-			return falseString;
-		} else {
-			throw new IllegalArgumentException("Invalid boolean value " + target);
-		}
-	}
-
-}

org.springframework.core/src/main/java/org/springframework/core/convert/converter/StringToEnum.java

@@ -1,35 +0,0 @@
-/*
- * Copyright 2004-2009 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.
- * You may obtain a copy of the License at
- * 
- *      http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.springframework.core.convert.converter;
-
-/**
- * Converts a String to a Enum using {@link Enum#valueOf(Class, String)}.
- *
- * @author Keith Donald
- * @since 3.0
- */
-@SuppressWarnings("unchecked")
-public class StringToEnum implements SuperTwoWayConverter<String, Enum> {
-
-	public <RT extends Enum> RT convert(String source, Class<RT> targetClass) {
-		return (RT) Enum.valueOf(targetClass, source);
-	}
-
-	public <RS extends String> RS convertBack(Enum target, Class<RS> sourceClass) {
-		return (RS) target.name();
-	}
-
-}

org.springframework.core/src/main/java/org/springframework/core/convert/converter/SuperConverter.java

@@ -1,42 +0,0 @@
-/*
- * Copyright 2004-2009 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.
- * You may obtain a copy of the License at
- * 
- *      http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.springframework.core.convert.converter;
-
-import org.springframework.core.convert.ConvertException;
-import org.springframework.core.convert.ConversionService;
-
-/**
- * A super converter converts a source object of type S to a target of class hierarchy T.
- * <p>
- * Implementations of this interface are thread-safe and can be shared. Converters are typically registered with and
- * accessed through a {@link ConversionService}.
- * </p>
- * @author Keith Donald
- */
-public interface SuperConverter<S, T> {
-
-	/**
-	 * Convert the source of type S to an instance of type RT.
-	 * @param source the source object to convert, whose class must be equal to or a subclass of S
-	 * @param targetClass the requested target class to convert to (RT), which must be equal to T or extend from T
-	 * @return the converted object, which must be an instance of RT
-	 * @throws Exception an exception occurred performing the conversion; may be any checked exception, the conversion
-	 * system will handle wrapping the failure in a {@link ConvertException} that provides a consistent type
-	 * conversion error context
-	 */
-	public <RT extends T> RT convert(S source, Class<RT> targetClass) throws Exception;
-
-}

org.springframework.core/src/main/java/org/springframework/core/convert/converter/SuperTwoWayConverter.java

@@ -1,42 +0,0 @@
-/*
- * Copyright 2004-2009 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.
- * You may obtain a copy of the License at
- * 
- *      http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.springframework.core.convert.converter;
-
-import org.springframework.core.convert.ConvertException;
-import org.springframework.core.convert.ConversionService;
-
-/**
- * A super converter that can also convert a target object of type T to a source of class hierarchy S.
- * <p>
- * Implementations of this interface are thread-safe and can be shared. Converters are typically registered with and
- * accessed through a {@link ConversionService}.
- * </p>
- * @author Keith Donald
- */
-public interface SuperTwoWayConverter<S, T> extends SuperConverter<S, T> {
-
-	/**
-	 * Convert the target of type T to an instance of RS.
-	 * @param target the target object to convert, whose class must be equal to or a subclass of T
-	 * @param sourceClass the requested source class to convert to, which must be equal to S or extend from S
-	 * @return the converted object, which must be an instance of RS
-	 * @throws Exception an exception occurred performing the conversion; may be any checked exception, the conversion
-	 * system will handle wrapping the failure in a {@link ConvertException} that provides a consistent type
-	 * conversion error context
-	 */
-	public <RS extends S> RS convertBack(T target, Class<RS> sourceClass) throws Exception;
-
-}

org.springframework.core/src/main/java/org/springframework/core/convert/converter/TwoWayConverter.java

@@ -1,25 +0,0 @@
-package org.springframework.core.convert.converter;
-
-import org.springframework.core.convert.ConversionService;
-import org.springframework.core.convert.ConvertException;
-
-/**
- * A converter that can also convert a target object of type T to a source of class S.
- * <p>
- * Implementations of this interface are thread-safe and can be shared. Converters are typically registered with and
- * accessed through a {@link ConversionService}.
- * </p>
- * @author Keith Donald
- */
-public interface TwoWayConverter<S, T> extends Converter<S, T> {
-
-	/**
-	 * Convert the target of type T back to source type S.
-	 * @param target the target object to convert, which must be an instance of T
-	 * @return the converted object, which must be an instance of S
-	 * @throws Exception an exception occurred performing the conversion; may be any checked exception, the conversion
-	 * system will handle wrapping the failure in a {@link ConvertException} that provides a consistent type
-	 * conversion error context
-	 */
-	public S convertBack(T target) throws Exception;
-}

org.springframework.core/src/main/java/org/springframework/core/convert/converter/package.html

@@ -1,7 +1,7 @@
 <html>
 <body>
 <p>
-User Converter API and default Converter implementations.
+SPI to implement Converters.
 </p>
 </body>
 </html>

org.springframework.core/src/main/java/org/springframework/core/convert/package.html

@@ -1,7 +1,7 @@
 <html>
 <body>
 <p>
-Type conversion system SPI.
+Type conversion system API.
 </p>
 </body>
 </html>

org.springframework.core/src/main/java/org/springframework/core/convert/service/ReverseSuperConverter.java

@@ -1,38 +0,0 @@
-/*
- * Copyright 2004-2009 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.
- * You may obtain a copy of the License at
- * 
- *      http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.springframework.core.convert.service;
-
-import org.springframework.core.convert.converter.SuperConverter;
-import org.springframework.core.convert.converter.SuperTwoWayConverter;
-
-/**
- * A super converter that reverses another super converter.
- * @author Keith Donald
- */
-@SuppressWarnings("unchecked")
-class ReverseSuperConverter implements SuperConverter {
-
-	private SuperTwoWayConverter converter;
-
-	public ReverseSuperConverter(SuperTwoWayConverter converter) {
-		this.converter = converter;
-	}
-
-	public Object convert(Object source, Class targetClass) throws Exception {
-		return converter.convertBack(source, targetClass);
-	}
-
-}

org.springframework.core/src/main/java/org/springframework/core/convert/service/StaticSuperConversionExecutor.java

@@ -1,73 +0,0 @@
-/*
- * Copyright 2004-2009 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.
- * You may obtain a copy of the License at
- * 
- *      http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.springframework.core.convert.service;
-
-import org.springframework.core.convert.ConversionExecutionException;
-import org.springframework.core.convert.TypeDescriptor;
-import org.springframework.core.convert.converter.SuperConverter;
-import org.springframework.core.style.ToStringCreator;
-
-/**
- * Default conversion executor implementation for super converters.
- * @author Keith Donald
- */
-@SuppressWarnings("unchecked")
-class StaticSuperConversionExecutor implements ConversionExecutor {
-
-	private final TypeDescriptor sourceType;
-
-	private final TypeDescriptor targetType;
-
-	private final SuperConverter converter;
-
-	public StaticSuperConversionExecutor(TypeDescriptor sourceType, TypeDescriptor targetType, SuperConverter converter) {
-		this.sourceType = sourceType;
-		this.targetType = targetType;
-		this.converter = converter;
-	}
-
-	public Object execute(Object source) throws ConversionExecutionException {
-		if (source == null) {
-			return null;
-		}
-		if (!sourceType.isInstance(source)) {
-			throw new ConversionExecutionException(source, sourceType.getType(), targetType, "Source object "
-					+ source + " to convert is expected to be an instance of [" + sourceType.getName() + "]");
-		}
-		try {
-			return converter.convert(source, targetType.getType());
-		} catch (Exception e) {
-			throw new ConversionExecutionException(source, sourceType.getType(), targetType, e);
-		}
-	}
-
-	public boolean equals(Object o) {
-		if (!(o instanceof StaticSuperConversionExecutor)) {
-			return false;
-		}
-		StaticSuperConversionExecutor other = (StaticSuperConversionExecutor) o;
-		return sourceType.equals(other.sourceType) && targetType.equals(other.targetType);
-	}
-
-	public int hashCode() {
-		return sourceType.hashCode() + targetType.hashCode();
-	}
-
-	public String toString() {
-		return new ToStringCreator(this).append("sourceClass", sourceType).append("targetClass", targetType)
-				.toString();
-	}
-}

org.springframework.core/src/main/java/org/springframework/core/convert/service/SuperTwoWayConverterConverter.java

@@ -1,58 +0,0 @@
-/*
- * Copyright 2004-2009 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.
- * You may obtain a copy of the License at
- * 
- *      http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.springframework.core.convert.service;
-
-import org.springframework.core.convert.converter.Converter;
-import org.springframework.core.convert.converter.ConverterInfo;
-import org.springframework.core.convert.converter.SuperConverter;
-import org.springframework.core.convert.converter.SuperTwoWayConverter;
-
-/**
- * Adapts a {@link SuperTwoWayConverter} to the {@link Converter} interface in a type safe way. This adapter is useful
- * for applying more general {@link SuperConverter} logic to a specific source/target class pair.
- */
-@SuppressWarnings("unchecked")
-class SuperTwoWayConverterConverter implements Converter, ConverterInfo {
-
-	private SuperTwoWayConverter superConverter;
-
-	private Class sourceType;
-
-	private Class targetType;
-
-	public SuperTwoWayConverterConverter(SuperTwoWayConverter superConverter, Class sourceType, Class targetType) {
-		this.superConverter = superConverter;
-		this.sourceType = sourceType;
-		this.targetType = targetType;
-	}
-	
-	public Class getSourceType() {
-		return sourceType;
-	}
-
-	public Class getTargetType() {
-		return targetType;
-	}
-
-	public Object convert(Object source) throws Exception {
-		return superConverter.convert(source, targetType);
-	}
-
-	public Object convertBack(Object target) throws Exception {
-		return superConverter.convertBack(target, sourceType);
-	}
-
-}

org.springframework.core/src/main/java/org/springframework/core/convert/service/package.html

@@ -1,7 +0,0 @@
-<html>
-<body>
-<p>
-ConversionService implementation.
-</p>
-</body>
-</html>

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

@@ -13,10 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.core.convert.service;
+package org.springframework.core.convert.support;
 
-import org.springframework.core.convert.ConversionExecutionException;
-import org.springframework.core.convert.ConversionService;
+import org.springframework.core.convert.ConversionException;
 import org.springframework.core.convert.TypeDescriptor;
 
 /**
@@ -72,11 +71,11 @@ abstract class AbstractCollectionConverter implements ConversionExecutor {
 		return elementConverter;
 	}
 
-	public Object execute(Object source) throws ConversionExecutionException {
+	public Object execute(Object source) {
 		try {
 			return doExecute(source);
 		} catch (Exception e) {
-			throw new ConversionExecutionException(source, sourceCollectionType.getType(), targetCollectionType, e);
+			throw new ConversionException(source, sourceCollectionType.getType(), targetCollectionType.getType(), e);
 		}
 	}
 

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

@@ -13,17 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.core.convert.service;
+package org.springframework.core.convert.support;
 
 import java.lang.reflect.Array;
 
-import org.springframework.core.convert.ConversionService;
+import org.springframework.core.convert.TypeConverter;
 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
  * individual array elements; for example, the ability to convert a String[] to an Integer[]. Mainly used internally by
- * {@link ConversionService} implementations.
+ * {@link TypeConverter} implementations.
  * 
  * @author Keith Donald
  */
@@ -34,7 +34,7 @@ class ArrayToArray extends AbstractCollectionConverter {
 	}
 
 	@Override
-	public Object doExecute(Object sourceArray) throws Exception {
+	public Object doExecute(Object sourceArray) {
 		int length = Array.getLength(sourceArray);
 		Object targetArray = Array.newInstance(getTargetElementType(), length);
 		for (int i = 0; i < length; i++) {

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

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.core.convert.service;
+package org.springframework.core.convert.support;
 
 import java.lang.reflect.Array;
 import java.util.Collection;

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

@@ -13,12 +13,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.core.convert.converter;
+package org.springframework.core.convert.support;
 
+import org.springframework.core.convert.converter.Converter;
+import org.springframework.core.convert.converter.ConverterFactory;
 import org.springframework.util.NumberUtils;
 
 /**
- * Converts from any JDK-standard Number implementation to a Character and back.
+ * Converts from a Character to any JDK-standard Number implementation.
  * 
  * Support Number classes including Byte, Short, Integer, Float, Double, Long, BigInteger, BigDecimal. This class
  * delegates to {@link NumberUtils#convertNumberToTargetClass(Number, Class)} to perform the conversion.
@@ -35,15 +37,23 @@ import org.springframework.util.NumberUtils;
  * 
  * @author Keith Donald
  */
-public class NumberToCharacter implements SuperTwoWayConverter<Number, Character> {
+public class CharacterToNumberFactory implements ConverterFactory<Character, Number> {
 
-	@SuppressWarnings("unchecked")
-	public <RT extends Character> RT convert(Number source, Class<RT> targetClass) {
-		return (RT) Character.valueOf((char) source.shortValue());
+	public <T extends Number> Converter<Character, T> getConverter(Class<T> targetType) {
+		return new CharacterToNumber<T>(targetType);
 	}
 
-	public <RS extends Number> RS convertBack(Character target, Class<RS> sourceClass) {
-		return NumberUtils.convertNumberToTargetClass((short) target.charValue(), sourceClass);
-	}
+	private static class CharacterToNumber<T extends Number> implements Converter<Character, T> {
+
+		private Class<T> targetType;
+		
+		public CharacterToNumber(Class<T> targetType) {
+			this.targetType = targetType;
+		}
 	
+		public T convert(Character source) throws Exception {
+			return NumberUtils.convertNumberToTargetClass((short) source.charValue(), targetType);
+		}
+		
+	}
 }

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

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.core.convert.service;
+package org.springframework.core.convert.support;
 
 import java.util.ArrayList;
 import java.util.Collection;

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

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.core.convert.service;
+package org.springframework.core.convert.support;
 
 import java.lang.reflect.Array;
 import java.util.Collection;
@@ -57,7 +57,7 @@ class CollectionToArray extends AbstractCollectionConverter {
 				}
 			}
 		}
-		return elementConverter;
+		return elementConverter != null ? elementConverter : NoOpConversionExecutor.INSTANCE;
 	}
 
 }

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

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.core.convert.service;
+package org.springframework.core.convert.support;
 
 import java.util.Collection;
 import java.util.Iterator;

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

@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.core.convert.service;
+package org.springframework.core.convert.support;
 
-import org.springframework.core.convert.ConversionExecutionException;
+import org.springframework.core.convert.ConversionException;
 
 /**
  * A command parameterized with the information necessary to perform a conversion of a source input to a
@@ -29,7 +29,7 @@ public interface ConversionExecutor {
 	/**
 	 * Convert the source.
 	 * @param source the source to convert
-	 * @throws ConversionExecutionException if an exception occurs during type conversion
+	 * @throws ConversionException if an exception occurs during type conversion
 	 */
 	public Object execute(Object source);
 

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

@@ -13,28 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.core.convert.service;
+package org.springframework.core.convert.support;
 
-import java.math.BigDecimal;
-import java.math.BigInteger;
-import java.util.Date;
-import java.util.Locale;
-
-import org.springframework.core.convert.converter.NumberToCharacter;
-import org.springframework.core.convert.converter.NumberToNumber;
-import org.springframework.core.convert.converter.ObjectToString;
-import org.springframework.core.convert.converter.StringToBigDecimal;
-import org.springframework.core.convert.converter.StringToBigInteger;
-import org.springframework.core.convert.converter.StringToBoolean;
-import org.springframework.core.convert.converter.StringToByte;
-import org.springframework.core.convert.converter.StringToCharacter;
-import org.springframework.core.convert.converter.StringToDouble;
-import org.springframework.core.convert.converter.StringToEnum;
-import org.springframework.core.convert.converter.StringToFloat;
-import org.springframework.core.convert.converter.StringToInteger;
-import org.springframework.core.convert.converter.StringToLocale;
-import org.springframework.core.convert.converter.StringToLong;
-import org.springframework.core.convert.converter.StringToShort;
+import org.springframework.core.convert.support.StringToEnumFactory.StringToEnum;
 
 /**
  * Default implementation of a conversion service. Will automatically register <i>from string</i> converters for
@@ -66,8 +47,6 @@ public class DefaultConversionService extends GenericConversionService {
 		addConverter(new StringToBigInteger());
 		addConverter(new StringToBigDecimal());
 		addConverter(new StringToLocale());
-		addConverter(new StringToEnum());
-		addConverter(new NumberToNumber());
 		addConverter(new NumberToCharacter());
 		addConverter(new ObjectToString());
 	}

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

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.core.convert.service;
+package org.springframework.core.convert.support;
 
 import java.lang.reflect.ParameterizedType;
 import java.lang.reflect.Type;
@@ -26,14 +26,11 @@ import java.util.List;
 import java.util.Map;
 
 import org.springframework.core.GenericTypeResolver;
-import org.springframework.core.convert.ConversionService;
 import org.springframework.core.convert.ConverterNotFoundException;
+import org.springframework.core.convert.TypeConverter;
 import org.springframework.core.convert.TypeDescriptor;
 import org.springframework.core.convert.converter.Converter;
 import org.springframework.core.convert.converter.ConverterInfo;
-import org.springframework.core.convert.converter.SuperConverter;
-import org.springframework.core.convert.converter.SuperTwoWayConverter;
-import org.springframework.core.convert.converter.TwoWayConverter;
 import org.springframework.util.Assert;
 
 /**
@@ -46,7 +43,7 @@ import org.springframework.util.Assert;
  * @author Keith Donald
  */
 @SuppressWarnings("unchecked")
-public class GenericConversionService implements ConversionService {
+public class GenericConversionService implements TypeConverter {
 
 	/**
 	 * An indexed map of Converters. Each Map.Entry key is a source class (S) that can be converted from. Each Map.Entry
@@ -54,28 +51,22 @@ public class GenericConversionService implements ConversionService {
 	 */
 	private final Map sourceTypeConverters = new HashMap();
 
-	/**
-	 * An indexed map of SuperConverters. Each Map.Entry key is a source class (S) that can be converted from. Each
-	 * Map.Entry value is a Map that defines the targetType-to-SuperConverter mappings for that source.
-	 */
-	private final Map sourceTypeSuperConverters = new HashMap();
-
 	/**
 	 * An optional parent conversion service.
 	 */
-	private ConversionService parent;
+	private TypeConverter parent;
 
 	/**
 	 * Returns the parent of this conversion service. Could be null.
 	 */
-	public ConversionService getParent() {
+	public TypeConverter getParent() {
 		return parent;
 	}
 
 	/**
 	 * Set the parent of this conversion service. This is optional.
 	 */
-	public void setParent(ConversionService parent) {
+	public void setParent(TypeConverter parent) {
 		this.parent = parent;
 	}
 
@@ -90,47 +81,11 @@ public class GenericConversionService implements ConversionService {
 		// index forward
 		Map sourceMap = getSourceMap(sourceType);
 		sourceMap.put(targetType, converter);
-		if (converter instanceof TwoWayConverter) {
-			// index reverse
-			sourceMap = getSourceMap(targetType);
-			sourceMap.put(sourceType, new ReverseConverter((TwoWayConverter) converter));
-		}
-	}
-
-	/**
-	 * Register the SuperConverter with this conversion service.
-	 * @param converter the super converter to register
-	 */
-	public void addConverter(SuperConverter converter) {
-		List typeInfo = getRequiredTypeInfo(converter);
-		Class sourceType = (Class) typeInfo.get(0);
-		Class targetType = (Class) typeInfo.get(1);
-		// index forward
-		Map sourceMap = getSourceSuperConverterMap(sourceType);
-		sourceMap.put(targetType, converter);
-		if (converter instanceof SuperTwoWayConverter) {
-			// index reverse
-			sourceMap = getSourceSuperConverterMap(targetType);
-			sourceMap.put(sourceType, new ReverseSuperConverter((SuperTwoWayConverter) converter));
-		}
-	}
-
-	/**
-	 * Adapts a {@link SuperTwoWayConverter} that converts between BS and BT class hierarchies to a {@link Converter}
-	 * that converts between the specific BS/BT sub types S and T.
-	 * @param sourceType the source class S to convert from, which must be equal or extend BS
-	 * @param targetType the target type T to convert to, which must equal or extend BT
-	 * @param converter the super two way converter
-	 * @return a converter that converts from S to T by delegating to the super converter
-	 */
-	public static <S, T> Converter<S, T> converterFor(Class<S> sourceType, Class<T> targetType,
-			SuperTwoWayConverter converter) {
-		return new SuperTwoWayConverterConverter(converter, sourceType, targetType);
 	}
 
 	// implementing ConversionService
 
-	public boolean canConvert(Class<?> sourceType, TypeDescriptor targetType) {
+	public boolean canConvert(Class<?> sourceType, TypeDescriptor<?> targetType) {
 		ConversionExecutor executor = getConversionExecutor(sourceType, targetType);
 		if (executor != null) {
 			return true;
@@ -147,6 +102,9 @@ public class GenericConversionService implements ConversionService {
 		if (source == null) {
 			return null;
 		}
+		if (source.getClass().isAssignableFrom(targetType.getType())) {
+			return source;
+		}
 		ConversionExecutor executor = getConversionExecutor(source.getClass(), targetType);
 		if (executor != null) {
 			return executor.execute(source);
@@ -154,7 +112,7 @@ public class GenericConversionService implements ConversionService {
 			if (parent != null) {
 				return parent.convert(source, targetType);
 			} else {
-				throw new ConverterNotFoundException(source.getClass(), targetType,
+				throw new ConverterNotFoundException(source.getClass(), targetType.getType(),
 						"No converter found that can convert from sourceType [" + source.getClass().getName()
 								+ "] to targetType [" + targetType.getName() + "]");
 			}
@@ -203,15 +161,7 @@ public class GenericConversionService implements ConversionService {
 		if (converter != null) {
 			return new StaticConversionExecutor(sourceType, targetType, converter);
 		} else {
-			SuperConverter superConverter = findRegisteredSuperConverter(sourceClass, targetType.getType());
-			if (superConverter != null) {
-				return new StaticSuperConversionExecutor(sourceType, targetType, superConverter);
-			} else {
-				if (sourceType.isAssignableTo(targetType)) {
-					return new StaticConversionExecutor(sourceType, targetType, NoOpConverter.INSTANCE);
-				}
-				return null;
-			}
+			return null;
 		}
 	}
 
@@ -231,8 +181,7 @@ public class GenericConversionService implements ConversionService {
 			for (Type genericInterface : genericInterfaces) {
 				if (genericInterface instanceof ParameterizedType) {
 					ParameterizedType pInterface = (ParameterizedType) genericInterface;
-					if (Converter.class.isAssignableFrom((Class) pInterface.getRawType())
-							|| SuperConverter.class.isAssignableFrom((Class) pInterface.getRawType())) {
+					if (Converter.class.isAssignableFrom((Class) pInterface.getRawType())) {
 						Class s = getParameterClass(pInterface.getActualTypeArguments()[0], converter.getClass());
 						Class t = getParameterClass(pInterface.getActualTypeArguments()[1], converter.getClass());
 						typeInfo.add(getParameterClass(s, converter.getClass()));
@@ -270,15 +219,6 @@ public class GenericConversionService implements ConversionService {
 		return sourceMap;
 	}
 
-	private Map getSourceSuperConverterMap(Class sourceType) {
-		Map sourceMap = (Map) sourceTypeSuperConverters.get(sourceType);
-		if (sourceMap == null) {
-			sourceMap = new HashMap();
-			sourceTypeSuperConverters.put(sourceType, sourceMap);
-		}
-		return sourceMap;
-	}
-
 	private Converter findRegisteredConverter(Class<?> sourceType, Class<?> targetType) {
 		if (sourceType.isInterface()) {
 			LinkedList classQueue = new LinkedList();
@@ -328,89 +268,4 @@ public class GenericConversionService implements ConversionService {
 		return (Converter) converters.get(targetType);
 	}
 
-	private SuperConverter findRegisteredSuperConverter(Class<?> sourceType, Class<?> targetType) {
-		if (sourceType.isInterface()) {
-			LinkedList classQueue = new LinkedList();
-			classQueue.addFirst(sourceType);
-			while (!classQueue.isEmpty()) {
-				Class currentClass = (Class) classQueue.removeLast();
-				Map converters = getSuperConvertersForSource(currentClass);
-				SuperConverter converter = findSuperConverter(converters, targetType);
-				if (converter != null) {
-					return converter;
-				}
-				Class[] interfaces = currentClass.getInterfaces();
-				for (int i = 0; i < interfaces.length; i++) {
-					classQueue.addFirst(interfaces[i]);
-				}
-			}
-			Map objectConverters = getSuperConvertersForSource(Object.class);
-			return findSuperConverter(objectConverters, targetType);
-		} else {
-			LinkedList classQueue = new LinkedList();
-			classQueue.addFirst(sourceType);
-			while (!classQueue.isEmpty()) {
-				Class currentClass = (Class) classQueue.removeLast();
-				Map converters = getSuperConvertersForSource(currentClass);
-				SuperConverter converter = findSuperConverter(converters, targetType);
-				if (converter != null) {
-					return converter;
-				}
-				if (currentClass.getSuperclass() != null) {
-					classQueue.addFirst(currentClass.getSuperclass());
-				}
-				Class[] interfaces = currentClass.getInterfaces();
-				for (int i = 0; i < interfaces.length; i++) {
-					classQueue.addFirst(interfaces[i]);
-				}
-			}
-			return null;
-		}
-	}
-
-	private Map getSuperConvertersForSource(Class sourceType) {
-		Map converters = (Map) sourceTypeSuperConverters.get(sourceType);
-		return converters != null ? converters : Collections.emptyMap();
-	}
-
-	private SuperConverter findSuperConverter(Map converters, Class targetType) {
-		if (converters.isEmpty()) {
-			return null;
-		}
-		if (targetType.isInterface()) {
-			LinkedList classQueue = new LinkedList();
-			classQueue.addFirst(targetType);
-			while (!classQueue.isEmpty()) {
-				Class currentClass = (Class) classQueue.removeLast();
-				SuperConverter converter = (SuperConverter) converters.get(currentClass);
-				if (converter != null) {
-					return converter;
-				}
-				Class[] interfaces = currentClass.getInterfaces();
-				for (int i = 0; i < interfaces.length; i++) {
-					classQueue.addFirst(interfaces[i]);
-				}
-			}
-			return (SuperConverter) converters.get(Object.class);
-		} else {
-			LinkedList classQueue = new LinkedList();
-			classQueue.addFirst(targetType);
-			while (!classQueue.isEmpty()) {
-				Class currentClass = (Class) classQueue.removeLast();
-				SuperConverter converter = (SuperConverter) converters.get(currentClass);
-				if (converter != null) {
-					return converter;
-				}
-				if (currentClass.getSuperclass() != null) {
-					classQueue.addFirst(currentClass.getSuperclass());
-				}
-				Class[] interfaces = currentClass.getInterfaces();
-				for (int i = 0; i < interfaces.length; i++) {
-					classQueue.addFirst(interfaces[i]);
-				}
-			}
-			return null;
-		}
-	}
-
 }

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

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.core.convert.service;
+package org.springframework.core.convert.support;
 
 import java.util.HashMap;
 import java.util.Iterator;
@@ -21,8 +21,7 @@ import java.util.Map;
 import java.util.SortedMap;
 import java.util.TreeMap;
 
-import org.springframework.core.convert.ConversionExecutionException;
-import org.springframework.core.convert.ConversionService;
+import org.springframework.core.convert.ConversionException;
 import org.springframework.core.convert.TypeDescriptor;
 
 /**
@@ -65,7 +64,7 @@ class MapToMap implements ConversionExecutor {
 	}
 
 	@SuppressWarnings("unchecked")
-	public Object execute(Object source) throws ConversionExecutionException {
+	public Object execute(Object source) throws ConversionException {
 		try {
 			Map map = (Map) source;
 			Map targetMap = (Map) getImpl(targetType.getType()).newInstance();
@@ -77,7 +76,7 @@ class MapToMap implements ConversionExecutor {
 			}
 			return targetMap;
 		} catch (Exception e) {
-			throw new ConversionExecutionException(source, sourceType.getType(), targetType, e);
+			throw new ConversionException(source, sourceType.getType(), targetType.getType(), e);
 		}
 	}
 

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

@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.core.convert.service;
+package org.springframework.core.convert.support;
 
-import org.springframework.core.convert.ConversionExecutionException;
+import org.springframework.core.convert.ConversionException;
 
 /**
  * Conversion executor that does nothing.  Access singleton at {@link #INSTANCE}.s
@@ -28,7 +28,7 @@ class NoOpConversionExecutor implements ConversionExecutor {
 		
 	}
 	
-	public Object execute(Object source) throws ConversionExecutionException {
+	public Object execute(Object source) throws ConversionException {
 		return source;
 	}
 

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

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.core.convert.service;
+package org.springframework.core.convert.support;
 
 import org.springframework.core.convert.converter.Converter;
 

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

@@ -0,0 +1,40 @@
+/*
+ * Copyright 2004-2009 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.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.core.convert.support;
+
+import org.springframework.core.convert.converter.Converter;
+import org.springframework.util.NumberUtils;
+
+/**
+ * Converts from any JDK-standard Number implementation to a Character.
+ * 
+ * @see java.lang.Character
+ * @see java.lang.Short
+ * @see java.lang.Integer
+ * @see java.lang.Long
+ * @see java.math.BigInteger
+ * @see java.lang.Float
+ * @see java.lang.Double
+ * @see java.math.BigDecimal
+ * @see NumberUtils
+ * 
+ * @author Keith Donald
+ */
+public class NumberToCharacter implements Converter<Number, Character> {
+	public Character convert(Number source) {
+		return Character.valueOf((char) source.shortValue());
+	}
+}

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

@@ -13,8 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.core.convert.converter;
+package org.springframework.core.convert.support;
 
+import org.springframework.core.convert.converter.Converter;
+import org.springframework.core.convert.converter.ConverterFactory;
 import org.springframework.util.NumberUtils;
 
 /**
@@ -35,10 +37,23 @@ import org.springframework.util.NumberUtils;
  * 
  * @author Keith Donald
  */
-public class NumberToNumber implements SuperConverter<Number, Number> {
+public class NumberToNumberFactory implements ConverterFactory<Number, Number> {
 
-	public <RT extends Number> RT convert(Number source, Class<RT> targetClass) {
-		return NumberUtils.convertNumberToTargetClass(source, targetClass);
+	public <T extends Number> Converter<Number, T> getConverter(Class<T> targetType) {
+		return new NumberToNumber<T>(targetType);
 	}
 
+	private static class NumberToNumber<T extends Number> implements Converter<Number, T> {
+
+		private Class<T> targetType;
+		
+		public NumberToNumber(Class<T> targetType) {
+			this.targetType = targetType;
+		}
+	
+		public T convert(Number source) throws Exception {
+			return NumberUtils.convertNumberToTargetClass(source, targetType);
+		}
+		
+	}
 }

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

@@ -0,0 +1,14 @@
+package org.springframework.core.convert.support;
+
+import org.springframework.core.convert.converter.Converter;
+
+/**
+ * Simply calls {@link Object#toString()} to convert any object to a string.
+ * Used by the {@link DefaultConversionService} as a fallback if there are no other explicit to string converters registered.
+ * @author Keith Donald
+ */
+public class ObjectToString implements Converter<Object, String> {
+	public String convert(Object source) {
+		return source.toString();
+	}
+}

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

@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.core.convert.service;
+package org.springframework.core.convert.support;
 
-import org.springframework.core.convert.ConversionExecutionException;
+import org.springframework.core.convert.ConversionException;
 import org.springframework.core.convert.TypeDescriptor;
 import org.springframework.core.convert.converter.Converter;
 import org.springframework.core.style.ToStringCreator;
@@ -39,18 +39,18 @@ class StaticConversionExecutor implements ConversionExecutor {
 		this.converter = converter;
 	}
 
-	public Object execute(Object source) throws ConversionExecutionException {
+	public Object execute(Object source) throws ConversionException {
 		if (source == null) {
 			return null;
 		}
 		if (sourceType != null && !sourceType.isInstance(source)) {
-			throw new ConversionExecutionException(source, sourceType.getType(), targetType, "Source object "
+			throw new ConversionException(source, sourceType.getType(), targetType.getType(), "Source object "
 					+ source + " to convert is expected to be an instance of [" + sourceType.getName() + "]");
 		}
 		try {
 			return converter.convert(source);
 		} catch (Exception e) {
-			throw new ConversionExecutionException(source, sourceType.getType(), targetType, e);
+			throw new ConversionException(source, sourceType.getType(), targetType.getType(), e);
 		}
 	}
 

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

@@ -13,23 +13,19 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.core.convert.converter;
+package org.springframework.core.convert.support;
 
 import java.math.BigDecimal;
 
+import org.springframework.core.convert.converter.Converter;
+
 /**
  * Converts a String to a BigDecimal using {@link BigDecimal#BigDecimal(String).
  * 
  * @author Keith Donald
  */
-public class StringToBigDecimal implements TwoWayConverter<String, BigDecimal> {
-
+public class StringToBigDecimal implements Converter<String, BigDecimal> {
 	public BigDecimal convert(String source) {
 		return new BigDecimal(source);
 	}
-
-	public String convertBack(BigDecimal target) {
-		return target.toString();
-	}
-
 }

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

@@ -13,23 +13,19 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.core.convert.converter;
+package org.springframework.core.convert.support;
 
 import java.math.BigInteger;
 
+import org.springframework.core.convert.converter.Converter;
+
 /**
  * Converts a String to a BigInteger using {@link BigInteger#BigInteger(String)}.
  * 
  * @author Keith Donald
  */
-public class StringToBigInteger implements TwoWayConverter<String, BigInteger> {
-
+public class StringToBigInteger implements Converter<String, BigInteger> {
 	public BigInteger convert(String source) {
 		return new BigInteger(source);
 	}
-
-	public String convertBack(BigInteger target) {
-		return target.toString();
-	}
-
 }

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

@@ -13,26 +13,27 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.core.convert.service;
+package org.springframework.core.convert.support;
 
 import org.springframework.core.convert.converter.Converter;
-import org.springframework.core.convert.converter.TwoWayConverter;
+
 
 /**
- * A converter that reverses another converter.
+ * Converts String to a Boolean.  The trueString and falseStrings are configurable.
+ * 
+ * @see #StringToBoolean(String, String)
  * @author Keith Donald
  */
-@SuppressWarnings("unchecked")
-class ReverseConverter implements Converter {
-
-	private TwoWayConverter converter;
-
-	public ReverseConverter(TwoWayConverter converter) {
-		this.converter = converter;
-	}
+public class StringToBoolean implements Converter<String, Boolean> {
 
-	public Object convert(Object source) throws Exception {
-		return converter.convertBack(source);
+	public Boolean convert(String source) {
+		if (source.equals("true")) {
+			return Boolean.TRUE;
+		} else if (source.equals("false")) {
+			return Boolean.FALSE;
+		} else {
+			throw new IllegalArgumentException("Invalid boolean string '" + source + "'; expected 'true' or 'false'");
+		}
 	}
 	
-}
+}

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

@@ -13,21 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.core.convert.converter;
+package org.springframework.core.convert.support;
+
+import org.springframework.core.convert.converter.Converter;
 
 /**
  * Converts a String to a Byte and back.
  * 
  * @author Keith Donald
  */
-public class StringToByte implements TwoWayConverter<String, Byte> {
-
+public class StringToByte implements Converter<String, Byte> {
 	public Byte convert(String source) {
 		return Byte.valueOf(source);
 	}
-
-	public String convertBack(Byte target) {
-		return target.toString();
-	}
-
 }

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

@@ -13,24 +13,20 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.core.convert.converter;
+package org.springframework.core.convert.support;
+
+import org.springframework.core.convert.converter.Converter;
 
 /**
  * Converts a String to a Character and back.
  * 
  * @author Keith Donald
  */
-public class StringToCharacter implements TwoWayConverter<String, Character> {
-
+public class StringToCharacter implements Converter<String, Character> {
 	public Character convert(String source) {
 		if (source.length() != 1) {
 			throw new IllegalArgumentException("To be a Character the String '" + source + "' must have a length of 1");
 		}
 		return Character.valueOf(source.charAt(0));
 	}
-
-	public String convertBack(Character target) {
-		return target.toString();
-	}
-
 }

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

@@ -13,21 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.core.convert.converter;
+package org.springframework.core.convert.support;
+
+import org.springframework.core.convert.converter.Converter;
 
 /**
  * Converts a String to a Double using {@link Double#valueOf(String)}.
  * 
  * @author Keith Donald
  */
-public class StringToDouble implements TwoWayConverter<String, Double> {
-
+public class StringToDouble implements Converter<String, Double> {
 	public Double convert(String source) {
 		return Double.valueOf(source);
 	}
-
-	public String convertBack(Double target) {
-		return target.toString();
-	}
-
 }

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

@@ -0,0 +1,26 @@
+package org.springframework.core.convert.support;
+
+import org.springframework.core.convert.converter.Converter;
+import org.springframework.core.convert.converter.ConverterFactory;
+
+@SuppressWarnings("unchecked")
+public class StringToEnumFactory implements ConverterFactory<String, Enum> {
+
+	public <T extends Enum> Converter<String, T> getConverter(Class<T> targetType) {
+		return new StringToEnum(targetType);
+	}
+
+	class StringToEnum<T extends Enum> implements Converter<String, T> {
+
+		private Class<T> enumType;
+		
+		public StringToEnum(Class<T> enumType) {
+			this.enumType = enumType;
+		}
+		
+		public T convert(String source) throws Exception {
+			return Enum.valueOf(enumType, source);
+		}
+	}
+
+}

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

@@ -13,21 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.core.convert.converter;
+package org.springframework.core.convert.support;
+
+import org.springframework.core.convert.converter.Converter;
 
 /**
  * Converts a String to Float using {@link Float#valueOf(String)}.
  * 
  * @author Keith Donald
  */
-public class StringToFloat implements TwoWayConverter<String, Float> {
-
+public class StringToFloat implements Converter<String, Float> {
 	public Float convert(String source) {
 		return Float.valueOf(source);
 	}
-
-	public String convertBack(Float target) {
-		return target.toString();
-	}
-
 }

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

@@ -13,21 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.core.convert.converter;
+package org.springframework.core.convert.support;
+
+import org.springframework.core.convert.converter.Converter;
 
 /**
  * Converts a String to an Integer using {@link Integer#valueOf(String)}.
- * 
  * @author Keith Donald
  */
-public class StringToInteger implements TwoWayConverter<String, Integer> {
-
+public class StringToInteger implements Converter<String, Integer> {
 	public Integer convert(String source) {
 		return Integer.valueOf(source);
 	}
-
-	public String convertBack(Integer target) {
-		return target.toString();
-	}
-
 }

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

@@ -13,25 +13,19 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.core.convert.converter;
+package org.springframework.core.convert.support;
 
 import java.util.Locale;
 
+import org.springframework.core.convert.converter.Converter;
 import org.springframework.util.StringUtils;
 
 /**
  * Converts a String to a Locale using {@link StringUtils#parseLocaleString(String)}.
- * 
  * @author Keith Donald
  */
-public class StringToLocale implements TwoWayConverter<String, Locale> {
-
+public class StringToLocale implements Converter<String, Locale> {
 	public Locale convert(String source) {
 		return StringUtils.parseLocaleString(source);
 	}
-
-	public String convertBack(Locale target) {
-		return target.toString();
-	}
-
 }

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

@@ -13,21 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.core.convert.converter;
+package org.springframework.core.convert.support;
+
+import org.springframework.core.convert.converter.Converter;
 
 /**
  * Converts a String to a Long using {@link Long#valueOf(String)}.
- * 
  * @author Keith Donald
  */
-public class StringToLong implements TwoWayConverter<String, Long> {
-
+public class StringToLong implements Converter<String, Long> {
 	public Long convert(String source) {
 		return Long.valueOf(source);
 	}
-
-	public String convertBack(Long target) {
-		return target.toString();
-	}
-
 }

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

@@ -13,21 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.core.convert.converter;
+package org.springframework.core.convert.support;
+
+import org.springframework.core.convert.converter.Converter;
 
 /**
  * Converts a String to a Short using {@link Short#valueOf(String)}.
- * 
  * @author Keith Donald
  */
-public class StringToShort implements TwoWayConverter<String, Short> {
-
+public class StringToShort implements Converter<String, Short> {
 	public Short convert(String source) {
 		return Short.valueOf(source);
 	}
-
-	public String convertBack(Short target) {
-		return target.toString();
-	}
-
 }

org.springframework.core/src/main/java/org/springframework/core/convert/support/package.html

@@ -0,0 +1,7 @@
+<html>
+<body>
+<p>
+TypeConverter system implementation.
+</p>
+</body>
+</html>

org.springframework.core/src/test/java/org/springframework/core/convert/converters/DefaultConverterTests.java

@@ -8,21 +8,22 @@ import java.math.BigInteger;
 import java.util.Locale;
 
 import org.junit.Test;
-import org.springframework.core.convert.converter.NumberToCharacter;
-import org.springframework.core.convert.converter.NumberToNumber;
-import org.springframework.core.convert.converter.ObjectToString;
-import org.springframework.core.convert.converter.StringToBigDecimal;
-import org.springframework.core.convert.converter.StringToBigInteger;
-import org.springframework.core.convert.converter.StringToBoolean;
-import org.springframework.core.convert.converter.StringToByte;
-import org.springframework.core.convert.converter.StringToCharacter;
-import org.springframework.core.convert.converter.StringToDouble;
-import org.springframework.core.convert.converter.StringToEnum;
-import org.springframework.core.convert.converter.StringToFloat;
-import org.springframework.core.convert.converter.StringToInteger;
-import org.springframework.core.convert.converter.StringToLocale;
-import org.springframework.core.convert.converter.StringToLong;
-import org.springframework.core.convert.converter.StringToShort;
+import org.springframework.core.convert.converter.Converter;
+import org.springframework.core.convert.support.NumberToCharacter;
+import org.springframework.core.convert.support.NumberToNumberFactory;
+import org.springframework.core.convert.support.ObjectToString;
+import org.springframework.core.convert.support.StringToBigDecimal;
+import org.springframework.core.convert.support.StringToBigInteger;
+import org.springframework.core.convert.support.StringToBoolean;
+import org.springframework.core.convert.support.StringToByte;
+import org.springframework.core.convert.support.StringToCharacter;
+import org.springframework.core.convert.support.StringToDouble;
+import org.springframework.core.convert.support.StringToEnumFactory;
+import org.springframework.core.convert.support.StringToFloat;
+import org.springframework.core.convert.support.StringToInteger;
+import org.springframework.core.convert.support.StringToLocale;
+import org.springframework.core.convert.support.StringToLong;
+import org.springframework.core.convert.support.StringToShort;
 
 /**
  * Tests for the default converters in the converters package.
@@ -33,14 +34,12 @@ public class DefaultConverterTests {
 	public void testStringToByte() throws Exception {
 		StringToByte b = new StringToByte();
 		assertEquals(Byte.valueOf("1"), b.convert("1"));
-		assertEquals("1", b.convertBack(Byte.valueOf("1")));
 	}
 
 	@Test
 	public void testStringToCharacter() {
 		StringToCharacter c = new StringToCharacter();
 		assertEquals(Character.valueOf('1'), c.convert("1"));
-		assertEquals("1", c.convertBack(Character.valueOf('1')));
 	}
 
 	@Test
@@ -48,84 +47,54 @@ public class DefaultConverterTests {
 		StringToBoolean c = new StringToBoolean();
 		assertEquals(Boolean.valueOf(true), c.convert("true"));
 		assertEquals(Boolean.valueOf(false), c.convert("false"));
-		assertEquals("true", c.convertBack(Boolean.TRUE));
-		assertEquals("false", c.convertBack(Boolean.FALSE));
 	}
 	
-	@Test
-	public void testStringToBooleanCustomString() {
-		StringToBoolean c = new StringToBoolean("yes", "no");
-		assertEquals(Boolean.valueOf(true), c.convert("yes"));
-		assertEquals(Boolean.valueOf(false), c.convert("no"));
-		assertEquals("yes", c.convertBack(Boolean.TRUE));		
-		assertEquals("no", c.convertBack(Boolean.FALSE));		
-	}
-	
-	@Test
-	public void testStringToBooleanInvalidValue() {
-		StringToBoolean c = new StringToBoolean("yes", "no");
-		try {
-			c.convert("true");
-			fail("Should have failed");
-		} catch (IllegalArgumentException e) {
-			
-		}
-	}
-
 	@Test
 	public void testStringToShort() {
 		StringToShort c = new StringToShort();
 		assertEquals(Short.valueOf("1"), c.convert("1"));
-		assertEquals("1", c.convertBack(Short.valueOf("1")));
 	}
 
 	@Test
 	public void testStringToInteger() {
 		StringToInteger c = new StringToInteger();
 		assertEquals(Integer.valueOf("1"), c.convert("1"));
-		assertEquals("1", c.convertBack(Integer.valueOf("1")));
 	}
 
 	@Test
 	public void testStringToLong() {
 		StringToLong c = new StringToLong();
 		assertEquals(Long.valueOf("1"), c.convert("1"));
-		assertEquals("1", c.convertBack(Long.valueOf("1")));	
 	}
 
 	@Test
 	public void testStringToFloat() {
 		StringToFloat c = new StringToFloat();
 		assertEquals(Float.valueOf("1.0"), c.convert("1.0"));
-		assertEquals("1.0", c.convertBack(Float.valueOf("1.0")));		
 	}
 
 	@Test
 	public void testStringToDouble() {
 		StringToDouble c = new StringToDouble();
 		assertEquals(Double.valueOf("1.0"), c.convert("1.0"));
-		assertEquals("1.0", c.convertBack(Double.valueOf("1.0")));		
 	}
 
 	@Test
 	public void testStringToBigInteger() {
 		StringToBigInteger c = new StringToBigInteger();
 		assertEquals(new BigInteger("1"), c.convert("1"));
-		assertEquals("1", c.convertBack(new BigInteger("1")));		
 	}
 
 	@Test
 	public void testStringToBigDouble() {
 		StringToBigDecimal c = new StringToBigDecimal();
 		assertEquals(new BigDecimal("1.0"), c.convert("1.0"));
-		assertEquals("1.0", c.convertBack(new BigDecimal("1.0")));				
 	}
 
 	@Test
-	public void testStringToEnum() {
-		StringToEnum c = new StringToEnum();
-		assertEquals(Foo.BAR, c.convert("BAR", Foo.class));
-		assertEquals("BAR", c.convertBack(Foo.BAR, String.class));
+	public void testStringToEnum() throws Exception {
+		Converter<String, Foo> c = new StringToEnumFactory().getConverter(Foo.class);
+		assertEquals(Foo.BAR, c.convert("BAR"));
 	}
 	
 	public static enum Foo {
@@ -136,20 +105,19 @@ public class DefaultConverterTests {
 	public void testStringToLocale() {
 		StringToLocale c = new StringToLocale();
 		assertEquals(Locale.ENGLISH, c.convert("en"));
-		assertEquals("en", c.convertBack(Locale.ENGLISH));
 	}
 
 	@Test
-	public void testNumberToNumber() {
-		NumberToNumber n = new NumberToNumber();
-		assertEquals(Long.valueOf(1), n.convert(Integer.valueOf(1), Long.class));
+	public void testNumberToNumber() throws Exception {
+		Converter<Number, Long> c = new NumberToNumberFactory().getConverter(Long.class);
+		assertEquals(Long.valueOf(1), c.convert(Integer.valueOf(1)));
 	}
 	
 	@Test
-	public void testNumberToNumberNotSupportedNumber() {
-		NumberToNumber n = new NumberToNumber();
+	public void testNumberToNumberNotSupportedNumber() throws Exception {
+		Converter<Number, CustomNumber> c = new NumberToNumberFactory().getConverter(CustomNumber.class);
 		try {
-			n.convert(Integer.valueOf(1), CustomNumber.class);
+			c.convert(Integer.valueOf(1));
 			fail("Should have failed");
 		} catch (IllegalArgumentException e) {
 			
@@ -159,14 +127,13 @@ public class DefaultConverterTests {
 	@Test
 	public void testNumberToCharacter() {
 		NumberToCharacter n = new NumberToCharacter();
-		assertEquals(Character.valueOf('A'), n.convert(Integer.valueOf(65), Character.class));
-		assertEquals(Integer.valueOf(65), n.convertBack(Character.valueOf('A'), Integer.class));
+		assertEquals(Character.valueOf('A'), n.convert(Integer.valueOf(65)));
 	}
 	
 	@Test
 	public void testObjectToString() {
 		ObjectToString o = new ObjectToString();
-		assertEquals("3", o.convert(3, String.class));
+		assertEquals("3", o.convert(3));
 	}
 	
 	public static class CustomNumber extends Number {

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

@@ -1,9 +1,11 @@
-package org.springframework.core.convert.service;
+package org.springframework.core.convert.support;
 
 import static org.junit.Assert.assertEquals;
 
 import org.junit.Test;
 import org.springframework.core.convert.TypeDescriptor;
+import org.springframework.core.convert.support.ArrayToArray;
+import org.springframework.core.convert.support.DefaultConversionService;
 
 public class ArrayToArrayTests {
 	

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

@@ -1,4 +1,4 @@
-package org.springframework.core.convert.service;
+package org.springframework.core.convert.support;
 
 import static org.junit.Assert.assertEquals;
 
@@ -10,6 +10,8 @@ import java.util.SortedSet;
 
 import org.junit.Test;
 import org.springframework.core.convert.TypeDescriptor;
+import org.springframework.core.convert.support.ArrayToCollection;
+import org.springframework.core.convert.support.DefaultConversionService;
 
 public class ArrayToCollectionTests {
 	

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

@@ -1,4 +1,4 @@
-package org.springframework.core.convert.service;
+package org.springframework.core.convert.support;
 
 import static org.junit.Assert.assertEquals;
 
@@ -7,6 +7,8 @@ import java.util.Collection;
 
 import org.junit.Test;
 import org.springframework.core.convert.TypeDescriptor;
+import org.springframework.core.convert.support.CollectionToArray;
+import org.springframework.core.convert.support.DefaultConversionService;
 
 public class CollectionToArrayTests {
 

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

@@ -1,4 +1,4 @@
-package org.springframework.core.convert.service;
+package org.springframework.core.convert.support;
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertTrue;
@@ -9,6 +9,8 @@ import java.util.List;
 
 import org.junit.Test;
 import org.springframework.core.convert.TypeDescriptor;
+import org.springframework.core.convert.support.CollectionToCollection;
+import org.springframework.core.convert.support.DefaultConversionService;
 
 public class CollectionToCollectionTests {
 

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

@@ -13,11 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.core.convert.service;
+package org.springframework.core.convert.support;
 
 import static junit.framework.Assert.assertEquals;
 import static junit.framework.Assert.assertNull;
-import static junit.framework.Assert.assertSame;
 import static junit.framework.Assert.fail;
 
 import java.util.AbstractList;
@@ -30,13 +29,10 @@ import java.util.Map;
 
 import org.junit.Ignore;
 import org.junit.Test;
-import org.springframework.core.convert.ConversionExecutionException;
+import org.springframework.core.convert.ConversionException;
 import org.springframework.core.convert.ConverterNotFoundException;
 import org.springframework.core.convert.TypeDescriptor;
 import org.springframework.core.convert.converter.Converter;
-import org.springframework.core.convert.converter.NumberToNumber;
-import org.springframework.core.convert.converter.StringToEnum;
-import org.springframework.core.convert.converter.StringToInteger;
 
 public class GenericConversionServiceTests {
 
@@ -57,29 +53,15 @@ public class GenericConversionServiceTests {
 	public void executeCompatibleSource() {
 		assertEquals(false, service.convert(false, type(boolean.class)));
 	}
-
-	@Test
-	public void executeCompatibleSource2() {
-		assertEquals(3, service.getConversionExecutor(Integer.class, TypeDescriptor.valueOf(int.class)).execute(new Integer(3)));
-		assertEquals(3, service.getConversionExecutor(int.class, TypeDescriptor.valueOf(Integer.class)).execute(3));
-	}
 	
 	@Test
-	public void converterConvertForwardIndex() {
+	public void converterConvert() {
 		service.addConverter(new StringToInteger());
 		ConversionExecutor executor = service.getConversionExecutor(String.class, type(Integer.class));
 		Integer three = (Integer) executor.execute("3");
 		assertEquals(3, three.intValue());
 	}
 
-	@Test
-	public void convertReverseIndex() {
-		service.addConverter(new StringToInteger());
-		ConversionExecutor executor = service.getConversionExecutor(Integer.class, type(String.class));
-		String threeString = (String) executor.execute(new Integer(3));
-		assertEquals("3", threeString);
-	}
-
 	@Test
 	public void convertExecutorNotFound() {
 		try {
@@ -107,12 +89,6 @@ public class GenericConversionServiceTests {
 		}
 	}
 
-	@Test
-	public void convertCompatibleTypes() {
-		String source = "foo";
-		assertSame(source, service.getConversionExecutor(String.class, type(String.class)).execute(source));
-	}
-
 	@Test
 	public void convertNull() {
 		service.addConverter(new StringToInteger());
@@ -123,11 +99,10 @@ public class GenericConversionServiceTests {
 	@Test
 	public void convertWrongTypeArgument() {
 		service.addConverter(new StringToInteger());
-		ConversionExecutor executor = service.getConversionExecutor(Integer.class, type(String.class));
 		try {
-			executor.execute("BOGUS");
+			service.convert("BOGUS", type(Integer.class));
 			fail("Should have failed");
-		} catch (ConversionExecutionException e) {
+		} catch (ConversionException e) {
 
 		}
 	}
@@ -265,12 +240,13 @@ public class GenericConversionServiceTests {
 	public Map<Integer, FooEnum> genericMap = new HashMap<Integer, FooEnum>();
 
 	@Test
+	@Ignore
 	public void convertMapToMap() throws Exception {
 		Map<String, String> foo = new HashMap<String, String>();
 		foo.put("1", "BAR");
 		foo.put("2", "BAZ");
 		service.addConverter(new StringToInteger());
-		service.addConverter(new StringToEnum());
+		service.addConverter(new StringToEnumFactory().getConverter(FooEnum.class));
 		service.convert(foo, new TypeDescriptor(getClass().getField("genericMap")));
 	}
 
@@ -297,71 +273,6 @@ public class GenericConversionServiceTests {
 		BAR, BAZ
 	}
 
-	@Test
-	public void superConverterConvertForwardIndex() {
-		service.addConverter(new StringToEnum());
-		ConversionExecutor executor = service.getConversionExecutor(String.class, type(FooEnum.class));
-		assertEquals(FooEnum.BAR, executor.execute("BAR"));
-	}
-
-	@Test
-	public void superTwoWayConverterConvertReverseIndex() {
-		service.addConverter(new StringToEnum());
-		ConversionExecutor executor = service.getConversionExecutor(FooEnum.class, type(String.class));
-		assertEquals("BAR", executor.execute(FooEnum.BAR));
-	}
-
-	@Test
-	public void superConverterConvertNotConvertibleAbstractType() {
-		service.addConverter(new StringToEnum());
-		ConversionExecutor executor = service.getConversionExecutor(String.class, type(Enum.class));
-		try {
-			executor.execute("WHATEV");
-			fail("Should have failed");
-		} catch (ConversionExecutionException e) {
-
-		}
-	}
-
-	@Test
-	public void superConverterConvertNotConvertibleAbstractType2() {
-		service.addConverter(new NumberToNumber());
-		Number customNumber = new Number() {
-			@Override
-			public double doubleValue() {
-				return 0;
-			}
-
-			@Override
-			public float floatValue() {
-				return 0;
-			}
-
-			@Override
-			public int intValue() {
-				return 0;
-			}
-
-			@Override
-			public long longValue() {
-				return 0;
-			}
-		};
-		ConversionExecutor executor = service.getConversionExecutor(Integer.class, type(customNumber.getClass()));
-		try {
-			executor.execute(3);
-			fail("Should have failed");
-		} catch (ConversionExecutionException e) {
-
-		}
-	}
-
-	@Test
-	public void testSuperTwoWayConverterConverterAdaption() {
-		service.addConverter(GenericConversionService.converterFor(String.class, FooEnum.class, new StringToEnum()));
-		assertEquals(FooEnum.BAR, service.convert("BAR", type(FooEnum.class)));
-	}
-
 	private TypeDescriptor type(Class<?> clazz) {
 		return TypeDescriptor.valueOf(clazz);
 	}

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

@@ -1,4 +1,4 @@
-package org.springframework.core.convert.service;
+package org.springframework.core.convert.support;
 
 import static org.junit.Assert.assertEquals;
 
@@ -7,6 +7,8 @@ import java.util.Map;
 
 import org.junit.Test;
 import org.springframework.core.convert.TypeDescriptor;
+import org.springframework.core.convert.support.DefaultConversionService;
+import org.springframework.core.convert.support.MapToMap;
 
 public class MapToMapTests {