Autowiring rejects self references to a factory method on the same bean as well

Issue: SPR-12018

spring-beans/src/main/java/org/springframework/beans/factory/support/DefaultListableBeanFactory.java

@@ -1082,7 +1082,7 @@ public class DefaultListableBeanFactory extends AbstractAutowireCapableBeanFacto
 			}
 		}
 		for (String candidateName : candidateNames) {
-			if (!candidateName.equals(beanName) && isAutowireCandidate(candidateName, descriptor)) {
+			if (!isSelfReference(beanName, candidateName) && isAutowireCandidate(candidateName, descriptor)) {
 				result.put(candidateName, getBean(candidateName));
 			}
 		}
@@ -1107,13 +1107,11 @@ public class DefaultListableBeanFactory extends AbstractAutowireCapableBeanFacto
 	 */
 	protected String determineAutowireCandidate(Map<String, Object> candidateBeans, DependencyDescriptor descriptor) {
 		Class<?> requiredType = descriptor.getDependencyType();
-		String primaryCandidate =
-				determinePrimaryCandidate(candidateBeans, requiredType);
+		String primaryCandidate = determinePrimaryCandidate(candidateBeans, requiredType);
 		if (primaryCandidate != null) {
 			return primaryCandidate;
 		}
-		String priorityCandidate =
-				determineHighestPriorityCandidate(candidateBeans, requiredType);
+		String priorityCandidate = determineHighestPriorityCandidate(candidateBeans, requiredType);
 		if (priorityCandidate != null) {
 			return priorityCandidate;
 		}
@@ -1240,6 +1238,23 @@ public class DefaultListableBeanFactory extends AbstractAutowireCapableBeanFacto
 				(candidateName.equals(beanName) || ObjectUtils.containsElement(getAliases(beanName), candidateName)));
 	}
 
+	/**
+	 * Determine whether the given beanName/candidateName pair indicates a self reference,
+	 * i.e. whether the candidate points back to the original bean or to a factory method
+	 * on the original bean.
+	 */
+	private boolean isSelfReference(String beanName, String candidateName) {
+		if (beanName.equals(candidateName)) {
+			return true;
+		}
+		if (candidateName != null && containsBeanDefinition(candidateName)) {
+			if (beanName.equals(getMergedLocalBeanDefinition(candidateName).getFactoryBeanName())) {
+				return true;
+			}
+		}
+		return false;
+	}
+
 	/**
 	 * Raise a NoSuchBeanDefinitionException for an unresolvable dependency.
 	 */

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

@@ -20,6 +20,7 @@ import java.lang.annotation.ElementType;
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
+import javax.annotation.PostConstruct;
 
 import org.junit.Before;
 import org.junit.Test;
@@ -40,6 +41,7 @@ import org.springframework.core.env.StandardEnvironment;
 import org.springframework.core.io.DescriptiveResource;
 import org.springframework.tests.sample.beans.ITestBean;
 import org.springframework.tests.sample.beans.TestBean;
+import org.springframework.util.Assert;
 
 import static org.junit.Assert.*;
 
@@ -362,10 +364,8 @@ public class ConfigurationClassPostProcessorTests {
 
 	@Test
 	public void genericsBasedInjectionWithWildcardWithExtendsMatch() {
-		beanFactory.registerBeanDefinition("configClass",
-			new RootBeanDefinition(WildcardWithExtendsConfiguration.class));
-		ConfigurationClassPostProcessor pp = new ConfigurationClassPostProcessor();
-		pp.postProcessBeanFactory(beanFactory);
+		beanFactory.registerBeanDefinition("configClass", new RootBeanDefinition(WildcardWithExtendsConfiguration.class));
+		new ConfigurationClassPostProcessor().postProcessBeanFactory(beanFactory);
 
 		assertSame(beanFactory.getBean("stringRepo"), beanFactory.getBean("repoConsumer"));
 	}
@@ -373,8 +373,7 @@ public class ConfigurationClassPostProcessorTests {
 	@Test
 	public void genericsBasedInjectionWithWildcardWithGenericExtendsMatch() {
 		beanFactory.registerBeanDefinition("configClass", new RootBeanDefinition(WildcardWithGenericExtendsConfiguration.class));
-		ConfigurationClassPostProcessor pp = new ConfigurationClassPostProcessor();
-		pp.postProcessBeanFactory(beanFactory);
+		new ConfigurationClassPostProcessor().postProcessBeanFactory(beanFactory);
 
 		assertSame(beanFactory.getBean("genericRepo"), beanFactory.getBean("repoConsumer"));
 	}
@@ -388,6 +387,18 @@ public class ConfigurationClassPostProcessorTests {
 		assertNotNull(simpleComponent);
 	}
 
+	@Test
+	public void testSelfReferenceExclusionForFactoryMethodOnSameBean() {
+		AutowiredAnnotationBeanPostProcessor bpp = new AutowiredAnnotationBeanPostProcessor();
+		bpp.setBeanFactory(beanFactory);
+		beanFactory.addBeanPostProcessor(bpp);
+		beanFactory.addBeanPostProcessor(new CommonAnnotationBeanPostProcessor());
+		beanFactory.registerBeanDefinition("configClass", new RootBeanDefinition(ConcreteConfig.class));
+		beanFactory.registerBeanDefinition("serviceBeanProvider", new RootBeanDefinition(ServiceBeanProvider.class));
+		new ConfigurationClassPostProcessor().postProcessBeanFactory(beanFactory);
+		beanFactory.preInstantiateSingletons();
+	}
+
 
 	// -------------------------------------------------------------------------
 
@@ -412,7 +423,6 @@ public class ConfigurationClassPostProcessorTests {
 
 		final Foo foo;
 
-
 		public Bar(Foo foo) {
 			this.foo = foo;
 		}
@@ -492,7 +502,6 @@ public class ConfigurationClassPostProcessorTests {
 		@Bean
 		public Repository<String> stringRepo() {
 			return new Repository<String>() {
-
 				@Override
 				public String toString() {
 					return "Repository<String>";
@@ -503,7 +512,6 @@ public class ConfigurationClassPostProcessorTests {
 		@Bean
 		public Repository<Integer> integerRepo() {
 			return new Repository<Integer>() {
-
 				@Override
 				public String toString() {
 					return "Repository<Integer>";
@@ -514,7 +522,6 @@ public class ConfigurationClassPostProcessorTests {
 		@Bean
 		public Repository<?> genericRepo() {
 			return new Repository<Object>() {
-
 				@Override
 				public String toString() {
 					return "Repository<Object>";
@@ -530,7 +537,6 @@ public class ConfigurationClassPostProcessorTests {
 		@Scope("prototype")
 		public Repository<String> stringRepo() {
 			return new Repository<String>() {
-
 				@Override
 				public String toString() {
 					return "Repository<String>";
@@ -542,7 +548,6 @@ public class ConfigurationClassPostProcessorTests {
 		@Scope("prototype")
 		public Repository<Integer> integerRepo() {
 			return new Repository<Integer>() {
-
 				@Override
 				public String toString() {
 					return "Repository<Integer>";
@@ -555,7 +560,6 @@ public class ConfigurationClassPostProcessorTests {
 		@SuppressWarnings("rawtypes")
 		public Repository genericRepo() {
 			return new Repository<Object>() {
-
 				@Override
 				public String toString() {
 					return "Repository<Object>";
@@ -756,4 +760,57 @@ public class ConfigurationClassPostProcessorTests {
 			MetaComponentScanConfigurationWithAttributeOverridesClass {
 	}
 
+	public static class ServiceBean {
+
+		private final String parameter;
+
+		public ServiceBean(String parameter) {
+			this.parameter = parameter;
+		}
+
+		public String getParameter() {
+			return parameter;
+		}
+	}
+
+	@Configuration
+	public static abstract class AbstractConfig {
+
+		@Bean
+		public ServiceBean serviceBean() {
+			return provider().getServiceBean();
+		}
+
+		@Bean
+		public ServiceBeanProvider provider() {
+			return new ServiceBeanProvider();
+		}
+	}
+
+	@Configuration
+	public static class ConcreteConfig extends AbstractConfig {
+
+		@Autowired
+		private ServiceBeanProvider provider;
+
+		@Bean
+		@Override
+		public ServiceBeanProvider provider() {
+			return provider;
+		}
+
+		@PostConstruct
+		public void validate() {
+			Assert.notNull(provider);
+		}
+	}
+
+	@Primary
+	public static class ServiceBeanProvider {
+
+		public ServiceBean getServiceBean() {
+			return new ServiceBean("message");
+		}
+	}
 }
+