Add repro test case for package-private @bean issue

Reproduces the issue described in SPR-8756 in addition to demonstrating
the suggested workaround.

Issue: SPR-8756, SPR-8725

Author: cbeams

org.springframework.context/src/test/java/org/springframework/context/annotation/configuration/PackagePrivateBeanMethodInheritanceTests.java

@@ -0,0 +1,94 @@
+/*
+ * Copyright 2002-2011 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.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.context.annotation.configuration;
+
+import static org.hamcrest.CoreMatchers.is;
+import static org.hamcrest.CoreMatchers.not;
+import static org.junit.Assert.assertThat;
+
+import org.junit.Test;
+import org.springframework.context.annotation.AnnotationConfigApplicationContext;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+/**
+ * Reproduces SPR-8756, which has been marked as "won't fix" for reasons
+ * described in the JIRA issue. Also demonstrates the suggested workaround.
+ *
+ * @author Chris Beams
+ */
+public class PackagePrivateBeanMethodInheritanceTests {
+
+	@Test
+	public void repro() {
+		AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext();
+		ctx.register(ReproConfig.class);
+		ctx.refresh();
+		Foo foo1 = ctx.getBean("foo1", Foo.class);
+		Foo foo2 = ctx.getBean("foo2", Foo.class);
+		ctx.getBean("packagePrivateBar", Bar.class); // <-- i.e. @Bean was registered
+		assertThat(foo1.bar, not(is(foo2.bar)));     // <-- i.e. @Bean *not* enhanced
+	}
+
+	@Test
+	public void workaround() {
+		AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext();
+		ctx.register(WorkaroundConfig.class);
+		ctx.refresh();
+		Foo foo1 = ctx.getBean("foo1", Foo.class);
+		Foo foo2 = ctx.getBean("foo2", Foo.class);
+		ctx.getBean("protectedBar", Bar.class); // <-- i.e. @Bean was registered
+		assertThat(foo1.bar, is(foo2.bar));     // <-- i.e. @Bean *was* enhanced
+	}
+
+	public static class Foo {
+		final Bar bar;
+		public Foo(Bar bar) {
+			this.bar = bar;
+		}
+	}
+
+	public static class Bar {
+	}
+
+	@Configuration
+	public static class ReproConfig extends org.springframework.context.annotation.configuration.a.BaseConfig {
+		@Bean
+		public Foo foo1() {
+			return new Foo(reproBar());
+		}
+
+		@Bean
+		public Foo foo2() {
+			return new Foo(reproBar());
+		}
+	}
+
+	@Configuration
+	public static class WorkaroundConfig extends org.springframework.context.annotation.configuration.a.BaseConfig {
+		@Bean
+		public Foo foo1() {
+			return new Foo(workaroundBar());
+		}
+
+		@Bean
+		public Foo foo2() {
+			return new Foo(workaroundBar());
+		}
+	}
+}
+

org.springframework.context/src/test/java/org/springframework/context/annotation/configuration/a/BaseConfig.java

@@ -0,0 +1,43 @@
+/*
+ * Copyright 2002-2011 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.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.context.annotation.configuration.a;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.configuration.PackagePrivateBeanMethodInheritanceTests.Bar;
+
+public abstract class BaseConfig {
+
+	// ---- reproduce ----
+	@Bean
+	Bar packagePrivateBar() {
+		return new Bar();
+	}
+
+	public Bar reproBar() {
+		return packagePrivateBar();
+	}
+
+	// ---- workaround ----
+	@Bean
+	protected Bar protectedBar() {
+		return new Bar();
+	}
+
+	public Bar workaroundBar() {
+		return protectedBar();
+	}
+}