diff --git a/org.springframework.beans/src/main/java/org/springframework/beans/factory/annotation/InitDestroyAnnotationBeanPostProcessor.java b/org.springframework.beans/src/main/java/org/springframework/beans/factory/annotation/InitDestroyAnnotationBeanPostProcessor.java
index 4c2db7df864f..f584458f440a 100644
--- a/org.springframework.beans/src/main/java/org/springframework/beans/factory/annotation/InitDestroyAnnotationBeanPostProcessor.java
+++ b/org.springframework.beans/src/main/java/org/springframework/beans/factory/annotation/InitDestroyAnnotationBeanPostProcessor.java
@@ -24,6 +24,7 @@
 import java.lang.reflect.Method;
 import java.lang.reflect.Modifier;
 import java.util.Collection;
+import java.util.Collections;
 import java.util.Iterator;
 import java.util.LinkedHashSet;
 import java.util.LinkedList;
@@ -246,7 +247,7 @@ private class LifecycleMetadata {
 		public LifecycleMetadata(Class<?> targetClass, Collection<LifecycleElement> initMethods,
 				Collection<LifecycleElement> destroyMethods) {
 
-			this.initMethods = new LinkedHashSet<LifecycleElement>();
+			this.initMethods = Collections.synchronizedSet(new LinkedHashSet<LifecycleElement>());
 			for (LifecycleElement element : initMethods) {
 				if (logger.isDebugEnabled()) {
 					logger.debug("Found init method on class [" + targetClass.getName() + "]: " + element);
@@ -254,7 +255,7 @@ public LifecycleMetadata(Class<?> targetClass, Collection<LifecycleElement> init
 				this.initMethods.add(element);
 			}
 
-			this.destroyMethods = new LinkedHashSet<LifecycleElement>();
+			this.destroyMethods = Collections.synchronizedSet(new LinkedHashSet<LifecycleElement>());
 			for (LifecycleElement element : destroyMethods) {
 				if (logger.isDebugEnabled()) {
 					logger.debug("Found destroy method on class [" + targetClass.getName() + "]: " + element);
@@ -264,22 +265,26 @@ public LifecycleMetadata(Class<?> targetClass, Collection<LifecycleElement> init
 		}
 
 		public void checkConfigMembers(RootBeanDefinition beanDefinition) {
-			for (Iterator<LifecycleElement> it = this.initMethods.iterator(); it.hasNext();) {
-				String methodIdentifier = it.next().getIdentifier();
-				if (!beanDefinition.isExternallyManagedInitMethod(methodIdentifier)) {
-					beanDefinition.registerExternallyManagedInitMethod(methodIdentifier);
-				}
-				else {
-					it.remove();
+			synchronized(this.initMethods) {
+				for (Iterator<LifecycleElement> it = this.initMethods.iterator(); it.hasNext();) {
+					String methodIdentifier = it.next().getIdentifier();
+					if (!beanDefinition.isExternallyManagedInitMethod(methodIdentifier)) {
+						beanDefinition.registerExternallyManagedInitMethod(methodIdentifier);
+					}
+					else {
+						it.remove();
+					}
 				}
 			}
-			for (Iterator<LifecycleElement> it = this.destroyMethods.iterator(); it.hasNext();) {
-				String methodIdentifier = it.next().getIdentifier();
-				if (!beanDefinition.isExternallyManagedDestroyMethod(methodIdentifier)) {
-					beanDefinition.registerExternallyManagedDestroyMethod(methodIdentifier);
-				}
-				else {
-					it.remove();
+			synchronized(this.destroyMethods) {
+				for (Iterator<LifecycleElement> it = this.destroyMethods.iterator(); it.hasNext();) {
+					String methodIdentifier = it.next().getIdentifier();
+					if (!beanDefinition.isExternallyManagedDestroyMethod(methodIdentifier)) {
+						beanDefinition.registerExternallyManagedDestroyMethod(methodIdentifier);
+					}
+					else {
+						it.remove();
+					}
 				}
 			}
 		}
diff --git a/org.springframework.beans/src/main/java/org/springframework/beans/factory/annotation/InjectionMetadata.java b/org.springframework.beans/src/main/java/org/springframework/beans/factory/annotation/InjectionMetadata.java
index 227605b5a004..4a1733de3077 100644
--- a/org.springframework.beans/src/main/java/org/springframework/beans/factory/annotation/InjectionMetadata.java
+++ b/org.springframework.beans/src/main/java/org/springframework/beans/factory/annotation/InjectionMetadata.java
@@ -22,6 +22,7 @@
 import java.lang.reflect.Member;
 import java.lang.reflect.Method;
 import java.util.Collection;
+import java.util.Collections;
 import java.util.Iterator;
 import java.util.LinkedHashSet;
 import java.util.Set;
@@ -53,7 +54,7 @@ public class InjectionMetadata {
 
 
 	public InjectionMetadata(Class targetClass, Collection<InjectedElement> elements) {
-		this.injectedElements = new LinkedHashSet<InjectedElement>();
+		this.injectedElements = Collections.synchronizedSet(new LinkedHashSet<InjectedElement>());
 		for (InjectedElement element : elements) {
 			if (logger.isDebugEnabled()) {
 				logger.debug("Found injected element on class [" + targetClass.getName() + "]: " + element);
@@ -63,13 +64,15 @@ public InjectionMetadata(Class targetClass, Collection<InjectedElement> elements
 	}
 
 	public void checkConfigMembers(RootBeanDefinition beanDefinition) {
-		for (Iterator<InjectedElement> it = this.injectedElements.iterator(); it.hasNext();) {
-			Member member = it.next().getMember();
-			if (!beanDefinition.isExternallyManagedConfigMember(member)) {
-				beanDefinition.registerExternallyManagedConfigMember(member);
-			}
-			else {
-				it.remove();
+		synchronized(this.injectedElements) {
+			for (Iterator<InjectedElement> it = this.injectedElements.iterator(); it.hasNext();) {
+				Member member = it.next().getMember();
+				if (!beanDefinition.isExternallyManagedConfigMember(member)) {
+					beanDefinition.registerExternallyManagedConfigMember(member);
+				}
+				else {
+					it.remove();
+				}
 			}
 		}
 	}