diff --git a/spring-beans/src/main/java/org/springframework/beans/factory/support/DefaultSingletonBeanRegistry.java b/spring-beans/src/main/java/org/springframework/beans/factory/support/DefaultSingletonBeanRegistry.java index e1790d5bf5..2077a101bd 100644 --- a/spring-beans/src/main/java/org/springframework/beans/factory/support/DefaultSingletonBeanRegistry.java +++ b/spring-beans/src/main/java/org/springframework/beans/factory/support/DefaultSingletonBeanRegistry.java @@ -1,5 +1,5 @@ /* - * Copyright 2002-2014 the original author or authors. + * Copyright 2002-2015 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. @@ -607,13 +607,13 @@ public class DefaultSingletonBeanRegistry extends SimpleAliasRegistry implements } /** - * Expose the singleton mutex to subclasses. + * Exposes the singleton mutex to subclasses and external collaborators. *
Subclasses should synchronize on the given Object if they perform
* any sort of extended singleton creation phase. In particular, subclasses
* should not have their own mutexes involved in singleton creation,
* to avoid the potential for deadlocks in lazy-init situations.
*/
- protected final Object getSingletonMutex() {
+ public final Object getSingletonMutex() {
return this.singletonObjects;
}
diff --git a/spring-context/src/main/java/org/springframework/context/event/AbstractApplicationEventMulticaster.java b/spring-context/src/main/java/org/springframework/context/event/AbstractApplicationEventMulticaster.java
index 850e4df4cf..05c2ed71b4 100644
--- a/spring-context/src/main/java/org/springframework/context/event/AbstractApplicationEventMulticaster.java
+++ b/spring-context/src/main/java/org/springframework/context/event/AbstractApplicationEventMulticaster.java
@@ -1,5 +1,5 @@
/*
- * Copyright 2002-2014 the original author or authors.
+ * Copyright 2002-2015 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.
@@ -28,6 +28,7 @@ import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.BeanFactoryAware;
import org.springframework.beans.factory.NoSuchBeanDefinitionException;
import org.springframework.beans.factory.config.ConfigurableBeanFactory;
+import org.springframework.beans.factory.support.AbstractBeanFactory;
import org.springframework.context.ApplicationEvent;
import org.springframework.context.ApplicationListener;
import org.springframework.core.OrderComparator;
@@ -65,47 +66,8 @@ public abstract class AbstractApplicationEventMulticaster
private BeanFactory beanFactory;
+ private Object retrievalMutex = this.defaultRetriever;
- @Override
- public void addApplicationListener(ApplicationListener> listener) {
- synchronized (this.defaultRetriever) {
- this.defaultRetriever.applicationListeners.add(listener);
- this.retrieverCache.clear();
- }
- }
-
- @Override
- public void addApplicationListenerBean(String listenerBeanName) {
- synchronized (this.defaultRetriever) {
- this.defaultRetriever.applicationListenerBeans.add(listenerBeanName);
- this.retrieverCache.clear();
- }
- }
-
- @Override
- public void removeApplicationListener(ApplicationListener> listener) {
- synchronized (this.defaultRetriever) {
- this.defaultRetriever.applicationListeners.remove(listener);
- this.retrieverCache.clear();
- }
- }
-
- @Override
- public void removeApplicationListenerBean(String listenerBeanName) {
- synchronized (this.defaultRetriever) {
- this.defaultRetriever.applicationListenerBeans.remove(listenerBeanName);
- this.retrieverCache.clear();
- }
- }
-
- @Override
- public void removeAllListeners() {
- synchronized (this.defaultRetriever) {
- this.defaultRetriever.applicationListeners.clear();
- this.defaultRetriever.applicationListenerBeans.clear();
- this.retrieverCache.clear();
- }
- }
@Override
public void setBeanClassLoader(ClassLoader classLoader) {
@@ -118,6 +80,9 @@ public abstract class AbstractApplicationEventMulticaster
if (this.beanClassLoader == null && beanFactory instanceof ConfigurableBeanFactory) {
this.beanClassLoader = ((ConfigurableBeanFactory) beanFactory).getBeanClassLoader();
}
+ if (beanFactory instanceof AbstractBeanFactory) {
+ this.retrievalMutex = ((AbstractBeanFactory) beanFactory).getSingletonMutex();
+ }
}
private BeanFactory getBeanFactory() {
@@ -129,13 +94,55 @@ public abstract class AbstractApplicationEventMulticaster
}
+ @Override
+ public void addApplicationListener(ApplicationListener> listener) {
+ synchronized (this.retrievalMutex) {
+ this.defaultRetriever.applicationListeners.add(listener);
+ this.retrieverCache.clear();
+ }
+ }
+
+ @Override
+ public void addApplicationListenerBean(String listenerBeanName) {
+ synchronized (this.retrievalMutex) {
+ this.defaultRetriever.applicationListenerBeans.add(listenerBeanName);
+ this.retrieverCache.clear();
+ }
+ }
+
+ @Override
+ public void removeApplicationListener(ApplicationListener> listener) {
+ synchronized (this.retrievalMutex) {
+ this.defaultRetriever.applicationListeners.remove(listener);
+ this.retrieverCache.clear();
+ }
+ }
+
+ @Override
+ public void removeApplicationListenerBean(String listenerBeanName) {
+ synchronized (this.retrievalMutex) {
+ this.defaultRetriever.applicationListenerBeans.remove(listenerBeanName);
+ this.retrieverCache.clear();
+ }
+ }
+
+ @Override
+ public void removeAllListeners() {
+ synchronized (this.retrievalMutex) {
+ this.defaultRetriever.applicationListeners.clear();
+ this.defaultRetriever.applicationListenerBeans.clear();
+ this.retrieverCache.clear();
+ }
+ }
+
+
/**
* Return a Collection containing all ApplicationListeners.
* @return a Collection of ApplicationListeners
* @see org.springframework.context.ApplicationListener
*/
protected Collection