fixed BeanPostProcessor invocation for null bean (SPR-6700)

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2009 the original author or authors.
+ * Copyright 2002-2010 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.
@@ -103,6 +103,18 @@ public class CommonAnnotationBeanPostProcessorTests {
 		assertTrue(bean.destroyCalled);
 	}
 
+	@Test
+	public void testPostProcessorWithNullBean() {
+		DefaultListableBeanFactory bf = new DefaultListableBeanFactory();
+		bf.addBeanPostProcessor(new CommonAnnotationBeanPostProcessor());
+		RootBeanDefinition rbd = new RootBeanDefinition(NullFactory.class);
+		rbd.setFactoryMethodName("create");
+		bf.registerBeanDefinition("bean", rbd);
+
+		assertNull(bf.getBean("bean"));
+		bf.destroySingletons();
+	}
+
 	@Test
 	public void testSerialization() throws Exception {
 		CommonAnnotationBeanPostProcessor bpp = new CommonAnnotationBeanPostProcessor();
@@ -578,4 +590,12 @@ public class CommonAnnotationBeanPostProcessorTests {
 		private INestedTestBean testBean;
 	}
 
+
+	private static class NullFactory {
+
+		public static Object create() {
+			return null;
+		}
+	}
+
 }