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Merge pull request #66 from dridi/SPR-9176 

* SPR-9176:
  Fix scoped-proxy memory leak w/ @Resource injection
This commit is contained in:
Chris Beams 2012-05-01 17:52:21 +03:00
parent e85e6147f0 f779c199ea
commit ae9549ae13
1 changed files with 21 additions and 4 deletions
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23
spring-context/src/main/java/org/springframework/context/annotation/CommonAnnotationBeanPostProcessor.java
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@ -1,5 +1,5 @@
/* /*
* Copyright 2002-2011 the original author or authors. * Copyright 2002-2012 the original author or authors.
* *
* Licensed under the Apache License, Version 2.0 (the "License"); * Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License. * you may not use this file except in compliance with the License.
@ -35,6 +35,7 @@ import java.util.LinkedList;
import java.util.Map; import java.util.Map;
import java.util.Set; import java.util.Set;
import java.util.concurrent.ConcurrentHashMap; import java.util.concurrent.ConcurrentHashMap;
import javax.annotation.PostConstruct; import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy; import javax.annotation.PreDestroy;
import javax.annotation.Resource; import javax.annotation.Resource;
@ -509,9 +510,12 @@ public class CommonAnnotationBeanPostProcessor extends InitDestroyAnnotationBean
*/ */
private class ResourceElement extends LookupElement { private class ResourceElement extends LookupElement {
@SuppressWarnings("unused")
protected boolean shareable = true; protected boolean shareable = true;
private volatile boolean cached = false;
private volatile Object cachedFieldValue;
public ResourceElement(Member member, PropertyDescriptor pd) { public ResourceElement(Member member, PropertyDescriptor pd) {
super(member, pd); super(member, pd);
} }
@ -546,7 +550,20 @@ public class CommonAnnotationBeanPostProcessor extends InitDestroyAnnotationBean
@Override @Override
protected Object getResourceToInject(Object target, String requestingBeanName) { protected Object getResourceToInject(Object target, String requestingBeanName) {
return getResource(this, requestingBeanName); Object value = null;
if (this.cached && this.shareable) {
value = this.cachedFieldValue;
}
synchronized (this) {
if (!this.cached) {
value = getResource(this, requestingBeanName);
if (value != null && this.shareable) {
this.cachedFieldValue = value;
this.cached = true;
}
}
}
return value;
} }
} }