Test injection point match for narrow target return type

Issue: SPR-14960
(cherry picked from commit 845dbf0)

Author: jhoeller

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

@@ -609,6 +609,12 @@ public void testNullArgumentThroughBeanMethodCall() {
 		ctx.getBean("aFoo");
 	}
 
+	@Test
+	public void testInjectionPointMatchForNarrowTargetReturnType() {
+		ApplicationContext ctx = new AnnotationConfigApplicationContext(FooBarConfiguration.class);
+		assertSame(ctx.getBean(BarImpl.class), ctx.getBean(FooImpl.class).bar);
+	}
+
 
 	// -------------------------------------------------------------------------
 
@@ -856,7 +862,7 @@ public static class SpecificRepositoryConfiguration {
 
 		@Bean
 		public Repository<Object> genericRepo() {
-			return new GenericRepository<Object>();
+			return new GenericRepository<>();
 		}
 	}
 
@@ -918,12 +924,12 @@ public static class WildcardWithExtendsConfiguration {
 
 		@Bean
 		public Repository<? extends String> stringRepo() {
-			return new Repository<String>();
+			return new Repository<>();
 		}
 
 		@Bean
 		public Repository<? extends Number> numberRepo() {
-			return new Repository<Number>();
+			return new Repository<>();
 		}
 
 		@Bean
@@ -942,7 +948,7 @@ public Repository<? extends Object> genericRepo() {
 
 		@Bean
 		public Repository<? extends Number> numberRepo() {
-			return new Repository<Number>();
+			return new Repository<>();
 		}
 
 		@Bean
@@ -1115,7 +1121,7 @@ public ServiceBean getServiceBean() {
 	@Configuration
 	public static class A {
 
-		@Autowired(required=true)
+		@Autowired(required = true)
 		Z z;
 
 		@Bean
@@ -1221,4 +1227,30 @@ static abstract class FooFactory {
 		abstract DependingFoo createFoo(BarArgument bar);
 	}
 
+	interface BarInterface {
+	}
+
+	static class BarImpl implements BarInterface {
+	}
+
+	static class FooImpl {
+
+		@Autowired
+		public BarImpl bar;
+	}
+
+	@Configuration
+	static class FooBarConfiguration {
+
+		@Bean @DependsOn("bar")
+		public FooImpl foo() {
+			return new FooImpl();
+		}
+
+		@Bean
+		public BarInterface bar() {
+			return new BarImpl();
+		}
+	}
+
 }