LazySingletonAspectInstanceFactoryDecorator uses shared singleton mutex
Issue: SPR-14241
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@ -1,5 +1,5 @@
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/*
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* Copyright 2002-2015 the original author or authors.
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* Copyright 2002-2016 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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@ -82,12 +82,9 @@ public class BeanFactoryAspectInstanceFactory implements MetadataAwareAspectInst
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@Override
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public ClassLoader getAspectClassLoader() {
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if (this.beanFactory instanceof ConfigurableBeanFactory) {
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return ((ConfigurableBeanFactory) this.beanFactory).getBeanClassLoader();
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}
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else {
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return ClassUtils.getDefaultClassLoader();
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}
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return (this.beanFactory instanceof ConfigurableBeanFactory ?
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((ConfigurableBeanFactory) this.beanFactory).getBeanClassLoader() :
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ClassUtils.getDefaultClassLoader());
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}
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@Override
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@ -95,6 +92,12 @@ public class BeanFactoryAspectInstanceFactory implements MetadataAwareAspectInst
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return this.aspectMetadata;
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}
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@Override
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public Object getAspectCreationMutex() {
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return (this.beanFactory instanceof ConfigurableBeanFactory ?
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((ConfigurableBeanFactory) this.beanFactory).getSingletonMutex() : this);
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}
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/**
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* Determine the order for this factory's target aspect, either
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* an instance-specific order expressed through implementing the
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@ -1,5 +1,5 @@
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/*
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* Copyright 2002-2015 the original author or authors.
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* Copyright 2002-2016 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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@ -46,9 +46,9 @@ public class LazySingletonAspectInstanceFactoryDecorator implements MetadataAwar
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@Override
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public synchronized Object getAspectInstance() {
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public Object getAspectInstance() {
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if (this.materialized == null) {
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synchronized (this) {
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synchronized (this.maaif.getAspectCreationMutex()) {
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if (this.materialized == null) {
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this.materialized = this.maaif.getAspectInstance();
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}
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@ -71,6 +71,11 @@ public class LazySingletonAspectInstanceFactoryDecorator implements MetadataAwar
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return this.maaif.getAspectMetadata();
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}
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@Override
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public Object getAspectCreationMutex() {
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return this.maaif.getAspectCreationMutex();
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}
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@Override
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public int getOrder() {
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return this.maaif.getOrder();
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@ -1,5 +1,5 @@
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/*
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* Copyright 2002-2007 the original author or authors.
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* Copyright 2002-2016 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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@ -39,4 +39,11 @@ public interface MetadataAwareAspectInstanceFactory extends AspectInstanceFactor
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*/
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AspectMetadata getAspectMetadata();
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/**
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* Return the best possible creation mutex for this factory.
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* @return the mutex object (never {@code null})
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* @since 4.3
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*/
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Object getAspectCreationMutex();
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}
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@ -1,5 +1,5 @@
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/*
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* Copyright 2002-2014 the original author or authors.
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* Copyright 2002-2016 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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@ -50,6 +50,11 @@ public class SimpleMetadataAwareAspectInstanceFactory extends SimpleAspectInstan
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return this.metadata;
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}
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@Override
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public Object getAspectCreationMutex() {
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return this;
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}
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@Override
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protected int getOrderForAspectClass(Class<?> aspectClass) {
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return OrderUtils.getOrder(aspectClass, Ordered.LOWEST_PRECEDENCE);
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@ -1,5 +1,5 @@
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/*
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* Copyright 2002-2015 the original author or authors.
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* Copyright 2002-2016 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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@ -55,6 +55,11 @@ public class SingletonMetadataAwareAspectInstanceFactory extends SingletonAspect
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return this.metadata;
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}
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@Override
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public Object getAspectCreationMutex() {
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return this;
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}
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@Override
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protected int getOrderForAspectClass(Class<?> aspectClass) {
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return OrderUtils.getOrder(aspectClass, Ordered.LOWEST_PRECEDENCE);
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@ -1,5 +1,5 @@
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/*
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* Copyright 2002-2015 the original author or authors.
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* Copyright 2002-2016 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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@ -693,6 +693,11 @@ public abstract class AbstractAspectJAdvisorFactoryTests {
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return new AspectMetadata(PerTypeWithinAspect.class, "perTypeWithin");
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}
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@Override
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public Object getAspectCreationMutex() {
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return this;
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}
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@Override
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public int getOrder() {
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return Ordered.LOWEST_PRECEDENCE;
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