Polishing

spring-core/src/main/java/org/springframework/core/convert/Property.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2014 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -62,6 +62,7 @@ public final class Property {
 
 	private Annotation[] annotations;
 
+
 	public Property(Class<?> objectType, Method readMethod, Method writeMethod) {
 		this(objectType, readMethod, writeMethod, null);
 	}
@@ -241,34 +242,25 @@ public final class Property {
 		}
 	}
 
+
 	@Override
-	public int hashCode() {
-		final int prime = 31;
-		int hashCode = 1;
-		hashCode = prime * hashCode + ObjectUtils.nullSafeHashCode(this.objectType);
-		hashCode = prime * hashCode + ObjectUtils.nullSafeHashCode(this.readMethod);
-		hashCode = prime * hashCode + ObjectUtils.nullSafeHashCode(this.writeMethod);
-		hashCode = prime * hashCode + ObjectUtils.nullSafeHashCode(this.name);
-		return hashCode;
+	public boolean equals(Object other) {
+		if (this == other) {
+			return true;
+		}
+		if (!(other instanceof Property)) {
+			return false;
+		}
+		Property otherProperty = (Property) other;
+		return (ObjectUtils.nullSafeEquals(this.objectType, otherProperty.objectType) &&
+				ObjectUtils.nullSafeEquals(this.name, otherProperty.name) &&
+				ObjectUtils.nullSafeEquals(this.readMethod, otherProperty.readMethod) &&
+				ObjectUtils.nullSafeEquals(this.writeMethod, otherProperty.writeMethod));
 	}
 
 	@Override
-	public boolean equals(Object obj) {
-		if (this == obj) {
-			return true;
-		}
-		if (obj == null) {
-			return false;
-		}
-		if (getClass() != obj.getClass()) {
-			return false;
-		}
-		Property other = (Property) obj;
-		boolean equals = true;
-		equals &= ObjectUtils.nullSafeEquals(this.objectType, other.objectType);
-		equals &= ObjectUtils.nullSafeEquals(this.readMethod, other.readMethod);
-		equals &= ObjectUtils.nullSafeEquals(this.writeMethod, other.writeMethod);
-		equals &= ObjectUtils.nullSafeEquals(this.name, other.name);
-		return equals;
+	public int hashCode() {
+		return (ObjectUtils.nullSafeHashCode(this.objectType) * 31 + ObjectUtils.nullSafeHashCode(this.name));
 	}
+
 }

spring-core/src/main/java/org/springframework/core/convert/support/MapToMapConverter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2014 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.
@@ -42,10 +42,12 @@ final class MapToMapConverter implements ConditionalGenericConverter {
 
 	private final ConversionService conversionService;
 
+
 	public MapToMapConverter(ConversionService conversionService) {
 		this.conversionService = conversionService;
 	}
 
+
 	@Override
 	public Set<ConvertiblePair> getConvertibleTypes() {
 		return Collections.singleton(new ConvertiblePair(Map.class, Map.class));
@@ -88,6 +90,7 @@ final class MapToMapConverter implements ConditionalGenericConverter {
 		return targetMap;
 	}
 
+
 	// internal helpers
 
 	private boolean canConvertKey(TypeDescriptor sourceType, TypeDescriptor targetType) {
@@ -114,10 +117,12 @@ final class MapToMapConverter implements ConditionalGenericConverter {
 		return this.conversionService.convert(sourceValue, sourceType.getMapValueTypeDescriptor(sourceValue), targetType);
 	}
 
+
 	private static class MapEntry {
 
-		private Object key;
-		private Object value;
+		private final Object key;
+
+		private final Object value;
 
 		public MapEntry(Object key, Object value) {
 			this.key = key;
@@ -125,7 +130,7 @@ final class MapToMapConverter implements ConditionalGenericConverter {
 		}
 
 		public void addToMap(Map<Object, Object> map) {
-			map.put(key, value);
+			map.put(this.key, this.value);
 		}
 	}
 

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2014 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.
@@ -31,23 +31,22 @@ import org.springframework.util.Assert;
  * is required.
  *
  * @author Phillip Webb
- * @param <T> The type of objects being compared
- * @see CompoundComparator
  * @since 3.2
+ * @param <T> the type of objects being compared
+ * @see CompoundComparator
  */
 public class InstanceComparator<T> implements Comparator<T> {
 
-	private Class<?>[] instanceOrder;
+	private final Class<?>[] instanceOrder;
 
 
 	/**
 	 * Create a new {@link InstanceComparator} instance.
-	 *
 	 * @param instanceOrder the ordered list of classes that should be used when comparing
 	 * objects. Classes earlier in the list will be be given a higher priority.
 	 */
 	public InstanceComparator(Class<?>... instanceOrder) {
-		Assert.notNull(instanceOrder, "InstanceOrder must not be null");
+		Assert.notNull(instanceOrder, "'instanceOrder' must not be null");
 		this.instanceOrder = instanceOrder;
 	}
 
@@ -61,13 +60,13 @@ public class InstanceComparator<T> implements Comparator<T> {
 
 	private int getOrder(T object) {
 		if (object != null) {
-			for (int i = 0; i < instanceOrder.length; i++) {
-				if (instanceOrder[i].isInstance(object)) {
+			for (int i = 0; i < this.instanceOrder.length; i++) {
+				if (this.instanceOrder[i].isInstance(object)) {
 					return i;
 				}
 			}
 		}
-		return instanceOrder.length;
+		return this.instanceOrder.length;
 	}
 
-}
+}