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replaced TypeDescriptor synchronization with volatile variables (SPR-8559)

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This commit is contained in:
Juergen Hoeller
2011-07-25 16:31:46 +00:00
parent f67e726be7
commit d8767774c9
1 changed files with 10 additions and 10 deletions
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20
org.springframework.core/src/main/java/org/springframework/core/convert/TypeDescriptor.java
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@@ -1,5 +1,5 @@
/*
* Copyright 2002-2010 the original author or authors.
* Copyright 2002-2011 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -80,13 +80,13 @@ public class TypeDescriptor {
private Object value;
private TypeDescriptor elementType;
private volatile TypeDescriptor elementType;
private TypeDescriptor mapKeyType;
private volatile TypeDescriptor mapKeyType;
private TypeDescriptor mapValueType;
private volatile TypeDescriptor mapValueType;
private Annotation[] annotations;
private volatile Annotation[] annotations;
/**
@@ -266,7 +266,7 @@ public class TypeDescriptor {
/**
* Return the element type as a type descriptor.
*/
public synchronized TypeDescriptor getElementTypeDescriptor() {
public TypeDescriptor getElementTypeDescriptor() {
if (this.elementType == null) {
this.elementType = forElementType(resolveElementType());
}
@@ -309,7 +309,7 @@ public class TypeDescriptor {
/**
* Returns map key type as a type descriptor.
*/
public synchronized TypeDescriptor getMapKeyTypeDescriptor() {
public TypeDescriptor getMapKeyTypeDescriptor() {
if (this.mapKeyType == null) {
this.mapKeyType = forElementType(resolveMapKeyType());
}
@@ -317,7 +317,7 @@ public class TypeDescriptor {
}
/**
* Return the map key type as a type descriptor. If the key type is null
* Return the map key type as a type descriptor. If the key type is <code>null</code>
* (cannot be determined), the type descriptor is derived from the key argument.
* @param key the key
* @return the map key type descriptor
@@ -338,7 +338,7 @@ public class TypeDescriptor {
/**
* Returns map value type as a type descriptor.
*/
public synchronized TypeDescriptor getMapValueTypeDescriptor() {
public TypeDescriptor getMapValueTypeDescriptor() {
if (this.mapValueType == null) {
this.mapValueType = forElementType(resolveMapValueType());
}
@@ -359,7 +359,7 @@ public class TypeDescriptor {
/**
* Obtain the annotations associated with the wrapped parameter/field, if any.
*/
public synchronized Annotation[] getAnnotations() {
public Annotation[] getAnnotations() {
if (this.annotations == null) {
this.annotations = resolveAnnotations();
}