Question

ApplicationContext ctx = new AnnotationConfigApplicationContext(Config.class);

AsyncBean session = ctx.getBean(AsyncBean.class);

Caused by: java.lang.ClassCastException: $Proxy14 cannot be cast to AsyncBean

Can’t figure out how to use @Async with @EnableAsync….it seems to produce proxies and I can’t get a handle to the singleton.

Another example:

@Bean
public Bean bean(){
   Bean bean=new Bean();
   bean.registerHandler(asyncBean());
}

@Bean 
public AsyncBean asyncBean(){
   return new AsyncBean();
 }

This also throws the same class cast exception… Caused by:

java.lang.ClassCastException: $Proxy14 cannot be cast to AsyncBean

Answer 1

Spring requires AsyncBean to be an interface not a class. In general the proxied class must be an interface.