@PostConstruct works for multiple private init methods of the same name in a hierarchy (SPR-5945)

org.springframework.beans/src/main/java/org/springframework/beans/factory/annotation/InitDestroyAnnotationBeanPostProcessor.java

@@ -20,6 +20,7 @@ import java.io.Serializable;
 import java.lang.annotation.Annotation;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
+import java.lang.reflect.Modifier;
 import java.util.Iterator;
 import java.util.LinkedHashSet;
 import java.util.Map;
@@ -118,7 +119,7 @@ public class InitDestroyAnnotationBeanPostProcessor
 		if (beanType != null) {
 			LifecycleMetadata metadata = findLifecycleMetadata(beanType);
 			for (Iterator<LifecycleElement> it = metadata.getInitMethods().iterator(); it.hasNext();) {
-				String methodName = it.next().getMethod().getName();
+				String methodName = calculateMethodIdentifierInHierarchy(it.next().getMethod());
 				if (!beanDefinition.isExternallyManagedInitMethod(methodName)) {
 					beanDefinition.registerExternallyManagedInitMethod(methodName);
 				}
@@ -127,7 +128,7 @@ public class InitDestroyAnnotationBeanPostProcessor
 				}
 			}
 			for (Iterator<LifecycleElement> it = metadata.getDestroyMethods().iterator(); it.hasNext();) {
-				String methodName = it.next().getMethod().getName();
+				String methodName = calculateMethodIdentifierInHierarchy(it.next().getMethod());
 				if (!beanDefinition.isExternallyManagedDestroyMethod(methodName)) {
 					beanDefinition.registerExternallyManagedDestroyMethod(methodName);
 				}
@@ -176,6 +177,15 @@ public class InitDestroyAnnotationBeanPostProcessor
 	}
 
 
+	private String calculateMethodIdentifierInHierarchy(Method method) {
+		if (Modifier.isPrivate(method.getModifiers())) {
+			return method.getDeclaringClass() + "." + method.getName();
+		}
+		else {
+			return method.getName();
+		}
+	}
+
 	private LifecycleMetadata findLifecycleMetadata(Class clazz) {
 		if (this.lifecycleMetadataCache == null) {
 			// Happens after deserialization, during destruction...
@@ -299,8 +309,15 @@ public class InitDestroyAnnotationBeanPostProcessor
 
 		@Override
 		public boolean equals(Object other) {
-			return (this == other || (other instanceof LifecycleElement &&
-					this.method.getName().equals(((LifecycleElement) other).method.getName())));
+			if (this == other) {
+				return true;
+			}
+			if (!(other instanceof LifecycleElement)) {
+				return false;
+			}
+			LifecycleElement otherElement = (LifecycleElement) other;
+			return (this.method.getName().equals(otherElement.method.getName()) &&
+					this.method.getDeclaringClass().equals(otherElement.method.getDeclaringClass()));
 		}
 
 		@Override

org.springframework.context/src/test/java/org/springframework/context/annotation/CommonAnnotationBeanPostProcessorTests.java

@@ -113,11 +113,13 @@ public class CommonAnnotationBeanPostProcessorTests {
 		ResourceInjectionBean bean = (ResourceInjectionBean) bf.getBean("annotatedBean");
 		assertTrue(bean.initCalled);
 		assertTrue(bean.init2Called);
+		assertTrue(bean.init3Called);
 		assertSame(tb, bean.getTestBean());
 		assertSame(tb2, bean.getTestBean2());
 		bf.destroySingletons();
 		assertTrue(bean.destroyCalled);
 		assertTrue(bean.destroy2Called);
+		assertTrue(bean.destroy3Called);
 	}
 
 	@Test
@@ -338,8 +340,12 @@ public class CommonAnnotationBeanPostProcessorTests {
 
 		public boolean init2Called = false;
 
+		public boolean init3Called = false;
+
 		public boolean destroy2Called = false;
 
+		public boolean destroy3Called = false;
+
 		@Resource
 		private TestBean testBean;
 
@@ -356,6 +362,14 @@ public class CommonAnnotationBeanPostProcessorTests {
 			this.init2Called = true;
 		}
 
+		@PostConstruct
+		private void init() {
+			if (this.init3Called) {
+				throw new IllegalStateException("Already called");
+			}
+			this.init3Called = true;
+		}
+
 		@PreDestroy
 		protected void destroy2() {
 			if (this.destroy2Called) {
@@ -364,6 +378,14 @@ public class CommonAnnotationBeanPostProcessorTests {
 			this.destroy2Called = true;
 		}
 
+		@PreDestroy
+		private void destroy() {
+			if (this.destroy3Called) {
+				throw new IllegalStateException("Already called");
+			}
+			this.destroy3Called = true;
+		}
+
 		@Resource
 		public void setTestBean2(TestBean testBean2) {
 			if (this.testBean2 != null) {