Consistent bridge method handling in annotation post-processors

Issue: SPR-12495
(cherry picked from commit 03d4e1b)

spring-beans/src/main/java/org/springframework/beans/BeanUtils.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2013 the original author or authors.
+ * Copyright 2002-2014 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.
@@ -379,13 +379,28 @@ public abstract class BeanUtils {
 	 * Find a JavaBeans {@code PropertyDescriptor} for the given method,
 	 * with the method either being the read method or the write method for
 	 * that bean property.
-	 * @param method the method to find a corresponding PropertyDescriptor for
+	 * @param method the method to find a corresponding PropertyDescriptor for,
+	 * introspecting its declaring class
 	 * @return the corresponding PropertyDescriptor, or {@code null} if none
 	 * @throws BeansException if PropertyDescriptor lookup fails
 	 */
 	public static PropertyDescriptor findPropertyForMethod(Method method) throws BeansException {
+		return findPropertyForMethod(method, method.getDeclaringClass());
+	}
+
+	/**
+	 * Find a JavaBeans {@code PropertyDescriptor} for the given method,
+	 * with the method either being the read method or the write method for
+	 * that bean property.
+	 * @param method the method to find a corresponding PropertyDescriptor for
+	 * @param clazz the (most specific) class to introspect for descriptors
+	 * @return the corresponding PropertyDescriptor, or {@code null} if none
+	 * @throws BeansException if PropertyDescriptor lookup fails
+	 * @since 4.0.9
+	 */
+	public static PropertyDescriptor findPropertyForMethod(Method method, Class<?> clazz) throws BeansException {
 		Assert.notNull(method, "Method must not be null");
-		PropertyDescriptor[] pds = getPropertyDescriptors(method.getDeclaringClass());
+		PropertyDescriptor[] pds = getPropertyDescriptors(clazz);
 		for (PropertyDescriptor pd : pds) {
 			if (method.equals(pd.getReadMethod()) || method.equals(pd.getWriteMethod())) {
 				return pd;
@@ -591,11 +606,11 @@ public abstract class BeanUtils {
 			actualEditable = editable;
 		}
 		PropertyDescriptor[] targetPds = getPropertyDescriptors(actualEditable);
-		List<String> ignoreList = (ignoreProperties != null) ? Arrays.asList(ignoreProperties) : null;
+		List<String> ignoreList = (ignoreProperties != null ? Arrays.asList(ignoreProperties) : null);
 
 		for (PropertyDescriptor targetPd : targetPds) {
 			Method writeMethod = targetPd.getWriteMethod();
-			if (writeMethod != null && (ignoreProperties == null || (!ignoreList.contains(targetPd.getName())))) {
+			if (writeMethod != null && (ignoreList == null || (!ignoreList.contains(targetPd.getName())))) {
 				PropertyDescriptor sourcePd = getPropertyDescriptor(source.getClass(), targetPd.getName());
 				if (sourcePd != null) {
 					Method readMethod = sourcePd.getReadMethod();

spring-beans/src/main/java/org/springframework/beans/factory/annotation/AutowiredAnnotationBeanPostProcessor.java

@@ -363,9 +363,6 @@ public class AutowiredAnnotationBeanPostProcessor extends InstantiationAwareBean
 				if (BridgeMethodResolver.isVisibilityBridgeMethodPair(method, bridgedMethod)) {
 					ann = findAutowiredAnnotation(bridgedMethod);
 				}
-				else if (!method.isBridge()) {
-					ann = findAutowiredAnnotation(method);
-				}
 				if (ann != null && method.equals(ClassUtils.getMostSpecificMethod(method, clazz))) {
 					if (Modifier.isStatic(method.getModifiers())) {
 						if (logger.isWarnEnabled()) {
@@ -379,7 +376,7 @@ public class AutowiredAnnotationBeanPostProcessor extends InstantiationAwareBean
 						}
 					}
 					boolean required = determineRequiredStatus(ann);
-					PropertyDescriptor pd = BeanUtils.findPropertyForMethod(method);
+					PropertyDescriptor pd = BeanUtils.findPropertyForMethod(bridgedMethod, clazz);
 					currElements.add(new AutowiredMethodElement(method, required, pd));
 				}
 			}

spring-beans/src/test/java/org/springframework/beans/factory/annotation/AutowiredAnnotationBeanPostProcessorTests.java

@@ -1773,7 +1773,7 @@ public class AutowiredAnnotationBeanPostProcessorTests {
 	}
 
 
-	public static class ExtendedResourceInjectionBean<T> extends ResourceInjectionBean {
+	static class NonPublicResourceInjectionBean<T> extends ResourceInjectionBean {
 
 		@Autowired
 		public final ITestBean testBean3 = null;
@@ -1786,7 +1786,7 @@ public class AutowiredAnnotationBeanPostProcessorTests {
 
 		public boolean baseInjected = false;
 
-		public ExtendedResourceInjectionBean() {
+		public NonPublicResourceInjectionBean() {
 		}
 
 		@Override
@@ -1829,12 +1829,11 @@ public class AutowiredAnnotationBeanPostProcessorTests {
 	}
 
 
-	public static class TypedExtendedResourceInjectionBean extends ExtendedResourceInjectionBean<NestedTestBean> {
-
+	public static class TypedExtendedResourceInjectionBean extends NonPublicResourceInjectionBean<NestedTestBean> {
 	}
 
 
-	public static class OverriddenExtendedResourceInjectionBean extends ExtendedResourceInjectionBean<NestedTestBean> {
+	public static class OverriddenExtendedResourceInjectionBean extends NonPublicResourceInjectionBean<NestedTestBean> {
 
 		public boolean subInjected = false;
 
@@ -2229,7 +2228,6 @@ public class AutowiredAnnotationBeanPostProcessorTests {
 
 		private TestBean testBean3;
 
-
 		@MyAutowired(optional = true)
 		protected void setTestBean3(TestBean testBean3) {
 			this.testBean3 = testBean3;

spring-context/src/main/java/org/springframework/context/annotation/CommonAnnotationBeanPostProcessor.java

@@ -312,9 +312,9 @@ public class CommonAnnotationBeanPostProcessor extends InitDestroyAnnotationBean
 
 
 	private InjectionMetadata findResourceMetadata(String beanName, final Class<?> clazz) {
-		// Quick check on the concurrent map first, with minimal locking.
 		// Fall back to class name as cache key, for backwards compatibility with custom callers.
 		String cacheKey = (StringUtils.hasLength(beanName) ? beanName : clazz.getName());
+		// Quick check on the concurrent map first, with minimal locking.
 		InjectionMetadata metadata = this.injectionMetadataCache.get(cacheKey);
 		if (InjectionMetadata.needsRefresh(metadata, clazz)) {
 			synchronized (this.injectionMetadataCache) {
@@ -358,7 +358,7 @@ public class CommonAnnotationBeanPostProcessor extends InitDestroyAnnotationBean
 									if (method.getParameterTypes().length != 1) {
 										throw new IllegalStateException("@WebServiceRef annotation requires a single-arg method: " + method);
 									}
-									PropertyDescriptor pd = BeanUtils.findPropertyForMethod(method);
+									PropertyDescriptor pd = BeanUtils.findPropertyForMethod(method, clazz);
 									currElements.add(new WebServiceRefElement(method, pd));
 								}
 								else if (ejbRefClass != null && method.isAnnotationPresent(ejbRefClass)) {
@@ -368,7 +368,7 @@ public class CommonAnnotationBeanPostProcessor extends InitDestroyAnnotationBean
 									if (method.getParameterTypes().length != 1) {
 										throw new IllegalStateException("@EJB annotation requires a single-arg method: " + method);
 									}
-									PropertyDescriptor pd = BeanUtils.findPropertyForMethod(method);
+									PropertyDescriptor pd = BeanUtils.findPropertyForMethod(method, clazz);
 									currElements.add(new EjbRefElement(method, pd));
 								}
 								else if (method.isAnnotationPresent(Resource.class)) {
@@ -380,7 +380,7 @@ public class CommonAnnotationBeanPostProcessor extends InitDestroyAnnotationBean
 										throw new IllegalStateException("@Resource annotation requires a single-arg method: " + method);
 									}
 									if (!ignoredResourceTypes.contains(paramTypes[0].getName())) {
-										PropertyDescriptor pd = BeanUtils.findPropertyForMethod(method);
+										PropertyDescriptor pd = BeanUtils.findPropertyForMethod(method, clazz);
 										currElements.add(new ResourceElement(method, pd));
 									}
 								}

spring-context/src/test/java/org/springframework/beans/factory/annotation/BridgeMethodAutowiringTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2014 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.
@@ -16,47 +16,51 @@
 
 package org.springframework.beans.factory.annotation;
 
-import static org.junit.Assert.assertNotNull;
-
 import javax.inject.Inject;
 import javax.inject.Named;
 
 import org.junit.Test;
+
 import org.springframework.context.annotation.AnnotationConfigApplicationContext;
 import org.springframework.stereotype.Component;
 
+import static org.junit.Assert.*;
+
 public class BridgeMethodAutowiringTests {
 
 	@Test
-	public void SPR_8434() {
+	public void SPR8434() {
 		AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext();
 		ctx.register(UserServiceImpl.class, Foo.class);
 		ctx.refresh();
 		assertNotNull(ctx.getBean(UserServiceImpl.class).object);
 	}
 
-}
 
+	static abstract class GenericServiceImpl<D> {
 
-abstract class GenericServiceImpl<D extends Object> {
+		public abstract void setObject(D object);
+	}
 
-	public abstract void setObject(D object);
 
-}
+	public static class UserServiceImpl extends GenericServiceImpl<Foo> {
 
+		protected Foo object;
 
-class UserServiceImpl extends GenericServiceImpl<Foo> {
+		@Override
+		@Inject
+		@Named("userObject")
+		public void setObject(Foo object) {
+			if (this.object != null) {
+				throw new IllegalStateException("Already called");
+			}
+			this.object = object;
+		}
+	}
 
-	protected Foo object;
 
-	@Override
-	@Inject
-	@Named("userObject")
-	public void setObject(Foo object) {
-		this.object = object;
+	@Component("userObject")
+	public static class Foo {
 	}
-}
-
-@Component("userObject")
-class Foo { }
 
+}

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2013 the original author or authors.
+ * Copyright 2002-2014 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.
@@ -25,11 +25,6 @@ import javax.ejb.EJB;
 import org.junit.Test;
 
 import org.springframework.beans.BeansException;
-import org.springframework.tests.mock.jndi.ExpectedLookupTemplate;
-import org.springframework.tests.sample.beans.INestedTestBean;
-import org.springframework.tests.sample.beans.ITestBean;
-import org.springframework.tests.sample.beans.NestedTestBean;
-import org.springframework.tests.sample.beans.TestBean;
 import org.springframework.beans.factory.BeanCreationException;
 import org.springframework.beans.factory.BeanFactory;
 import org.springframework.beans.factory.NoSuchBeanDefinitionException;
@@ -42,6 +37,11 @@ import org.springframework.beans.factory.support.DefaultListableBeanFactory;
 import org.springframework.beans.factory.support.RootBeanDefinition;
 import org.springframework.context.support.GenericApplicationContext;
 import org.springframework.jndi.support.SimpleJndiBeanFactory;
+import org.springframework.tests.mock.jndi.ExpectedLookupTemplate;
+import org.springframework.tests.sample.beans.INestedTestBean;
+import org.springframework.tests.sample.beans.ITestBean;
+import org.springframework.tests.sample.beans.NestedTestBean;
+import org.springframework.tests.sample.beans.TestBean;
 import org.springframework.util.SerializationTestUtils;
 
 import static org.junit.Assert.*;
@@ -566,20 +566,20 @@ public class CommonAnnotationBeanPostProcessorTests {
 	}
 
 
-	public static class ExtendedResourceInjectionBean extends ResourceInjectionBean {
+	static class NonPublicResourceInjectionBean<B> extends ResourceInjectionBean {
 
 		@Resource(name="testBean4", type=TestBean.class)
 		protected ITestBean testBean3;
 
-		private ITestBean testBean4;
+		private B testBean4;
 
 		@Resource
-		private INestedTestBean testBean5;
+		INestedTestBean testBean5;
 
-		private INestedTestBean testBean6;
+		INestedTestBean testBean6;
 
 		@Resource
-		private BeanFactory beanFactory;
+		BeanFactory beanFactory;
 
 		@Override
 		@Resource
@@ -588,12 +588,18 @@ public class CommonAnnotationBeanPostProcessorTests {
 		}
 
 		@Resource(name="${tb}", type=ITestBean.class)
-		private void setTestBean4(ITestBean testBean4) {
+		private void setTestBean4(B testBean4) {
+			if (this.testBean4 != null) {
+				throw new IllegalStateException("Already called");
+			}
 			this.testBean4 = testBean4;
 		}
 
 		@Resource
 		public void setTestBean6(INestedTestBean testBean6) {
+			if (this.testBean6 != null) {
+				throw new IllegalStateException("Already called");
+			}
 			this.testBean6 = testBean6;
 		}
 
@@ -601,7 +607,7 @@ public class CommonAnnotationBeanPostProcessorTests {
 			return testBean3;
 		}
 
-		public ITestBean getTestBean4() {
+		public B getTestBean4() {
 			return testBean4;
 		}
 
@@ -630,6 +636,10 @@ public class CommonAnnotationBeanPostProcessorTests {
 	}
 
 
+	public static class ExtendedResourceInjectionBean extends NonPublicResourceInjectionBean<ITestBean> {
+	}
+
+
 	public static class ExtendedEjbInjectionBean extends ResourceInjectionBean {
 
 		@EJB(name="testBean4", beanInterface=TestBean.class)
@@ -653,11 +663,17 @@ public class CommonAnnotationBeanPostProcessorTests {
 
 		@EJB(beanName="testBean3", beanInterface=ITestBean.class)
 		private void setTestBean4(ITestBean testBean4) {
+			if (this.testBean4 != null) {
+				throw new IllegalStateException("Already called");
+			}
 			this.testBean4 = testBean4;
 		}
 
 		@EJB
 		public void setTestBean6(INestedTestBean testBean6) {
+			if (this.testBean6 != null) {
+				throw new IllegalStateException("Already called");
+			}
 			this.testBean6 = testBean6;
 		}
 

spring-orm/src/main/java/org/springframework/orm/jpa/support/PersistenceAnnotationBeanPostProcessor.java

@@ -50,6 +50,7 @@ import org.springframework.beans.factory.config.DestructionAwareBeanPostProcesso
 import org.springframework.beans.factory.config.InstantiationAwareBeanPostProcessor;
 import org.springframework.beans.factory.support.MergedBeanDefinitionPostProcessor;
 import org.springframework.beans.factory.support.RootBeanDefinition;
+import org.springframework.core.BridgeMethodResolver;
 import org.springframework.core.Ordered;
 import org.springframework.core.PriorityOrdered;
 import org.springframework.jndi.JndiLocatorDelegate;
@@ -376,9 +377,9 @@ public class PersistenceAnnotationBeanPostProcessor
 
 
 	private InjectionMetadata findPersistenceMetadata(String beanName, final Class<?> clazz) {
-		// Quick check on the concurrent map first, with minimal locking.
 		// Fall back to class name as cache key, for backwards compatibility with custom callers.
 		String cacheKey = (StringUtils.hasLength(beanName) ? beanName : clazz.getName());
+		// Quick check on the concurrent map first, with minimal locking.
 		InjectionMetadata metadata = this.injectionMetadataCache.get(cacheKey);
 		if (InjectionMetadata.needsRefresh(metadata, clazz)) {
 			synchronized (this.injectionMetadataCache) {
@@ -390,9 +391,8 @@ public class PersistenceAnnotationBeanPostProcessor
 					do {
 						LinkedList<InjectionMetadata.InjectedElement> currElements = new LinkedList<InjectionMetadata.InjectedElement>();
 						for (Field field : targetClass.getDeclaredFields()) {
-							PersistenceContext pc = field.getAnnotation(PersistenceContext.class);
-							PersistenceUnit pu = field.getAnnotation(PersistenceUnit.class);
-							if (pc != null || pu != null) {
+							if (field.isAnnotationPresent(PersistenceContext.class) ||
+									field.isAnnotationPresent(PersistenceUnit.class)) {
 								if (Modifier.isStatic(field.getModifiers())) {
 									throw new IllegalStateException("Persistence annotations are not supported on static fields");
 								}
@@ -400,17 +400,18 @@ public class PersistenceAnnotationBeanPostProcessor
 							}
 						}
 						for (Method method : targetClass.getDeclaredMethods()) {
-							PersistenceContext pc = method.getAnnotation(PersistenceContext.class);
-							PersistenceUnit pu = method.getAnnotation(PersistenceUnit.class);
-							if ((pc != null || pu != null) && !method.isBridge() &&
-									method.equals(ClassUtils.getMostSpecificMethod(method, clazz))) {
+							method = BridgeMethodResolver.findBridgedMethod(method);
+							Method mostSpecificMethod = BridgeMethodResolver.findBridgedMethod(ClassUtils.getMostSpecificMethod(method, clazz));
+							if ((method.isAnnotationPresent(PersistenceContext.class) ||
+									method.isAnnotationPresent(PersistenceUnit.class)) &&
+									method.equals(mostSpecificMethod)) {
 								if (Modifier.isStatic(method.getModifiers())) {
 									throw new IllegalStateException("Persistence annotations are not supported on static methods");
 								}
 								if (method.getParameterTypes().length != 1) {
 									throw new IllegalStateException("Persistence annotation requires a single-arg method: " + method);
 								}
-								PropertyDescriptor pd = BeanUtils.findPropertyForMethod(method);
+								PropertyDescriptor pd = BeanUtils.findPropertyForMethod(method, clazz);
 								currElements.add(new PersistenceElement(method, pd));
 							}
 						}

spring-orm/src/test/java/org/springframework/orm/jpa/support/PersistenceInjectionTests.java

@@ -774,7 +774,7 @@ public class PersistenceInjectionTests extends AbstractEntityManagerFactoryBeanT
 
 
 	@SuppressWarnings("serial")
-	public static class SpecificPublicPersistenceContextSetter extends DefaultPublicPersistenceContextSetter {
+	static class PublicPersistenceContextSetterOnNonPublicClass extends DefaultPublicPersistenceContextSetter {
 
 		@Override
 		@PersistenceContext(unitName="unit2", type = PersistenceContextType.EXTENDED)
@@ -784,6 +784,11 @@ public class PersistenceInjectionTests extends AbstractEntityManagerFactoryBeanT
 	}
 
 
+	@SuppressWarnings("serial")
+	public static class SpecificPublicPersistenceContextSetter extends PublicPersistenceContextSetterOnNonPublicClass {
+	}
+
+
 	public static class DefaultPrivatePersistenceUnitField {
 
 		@PersistenceUnit