This shows leakage of Class<T> by AbstractApplicationEventMulticaster

Foo.java

/**
 * 
 * @author ebottard
 */
public class Foo {

	public static void main(String[] args) throws IOException {
		AnnotationConfigApplicationContext parent = new AnnotationConfigApplicationContext();
		parent.register(Parent.class);
		AnnotationConfigApplicationContext child = new AnnotationConfigApplicationContext();
		child.register(Child.class);
		// child.setParent(parent);

		parent.refresh();
		child.refresh();


		child.publishEvent(new MyEvent(child));
		child.close();
		child = null;

		System.in.read();
	}

	public static class MyEvent extends ApplicationEvent {

		/**
		 * @param source
		 */
		public MyEvent(Object source) {
			super(source);
			// TODO Auto-generated constructor stub
		}

	}

	@Configuration()
	public static class Parent {

	}

	@Configuration()
	public static class Child {

		@Bean
		public ApplicationListener<MyEvent> foo() {
			return new ApplicationListener<Foo.MyEvent>() {

				@Override
				public void onApplicationEvent(MyEvent event) {
					System.out.println(event);
				}
			};
		}
	}
}