[jboss-user] [JBoss AOP] - Field visibility and aspect

[mane81]

Hi,
if I have a class with an enclosed class like this

Class POJO {
private String aField;

...

class AnotherClass {
public void someMethod() {
       aField = "something";
}
}
}

and I add an aspect at runtime through these instructions:
AdviceBinding binding = new AdviceBinding("execution(public boolean Pojo>getCond())", null);
binding.addInterceptor(SimpleAspect.class);
AspectManager.instance().addBinding(binding);

An exception is thrown:
Exception in thread "main" java.lang.NullPointerException
	at org.jboss.aop.pointcut.MethodMatcher.(MethodMatcher.java:72)
	at org.jboss.aop.pointcut.ExecutionMethodMatcher.(ExecutionMethodMatcher.java:53)
	at org.jboss.aop.pointcut.PointcutExpression.matchesExecution(PointcutExpression.java:118)
	at org.jboss.aop.Advisor.resolveMethodPointcut(Advisor.java:1333)
	at org.jboss.aop.GeneratedClassAdvisor.resolveMethodPointcut(GeneratedClassAdvisor.java:309)
	at org.jboss.aop.ClassAdvisor.resolvePointcuts(ClassAdvisor.java:751)
	at org.jboss.aop.ClassAdvisor.doRebuildInterceptorsForAddedBinding(ClassAdvisor.java:1160)
	at org.jboss.aop.ClassAdvisor$RebuildInterceptorsAction$2.rebuildInterceptorsForAddedBinding(ClassAdvisor.java:2348)
	at org.jboss.aop.ClassAdvisor.rebuildInterceptorsForAddedBinding(ClassAdvisor.java:1139)
	at org.jboss.aop.GeneratedClassAdvisor.access$1501(GeneratedClassAdvisor.java:65)
	at org.jboss.aop.GeneratedClassAdvisor$ClassAdvisorStrategy.rebuildInterceptorsForAddedBinding(GeneratedClassAdvisor.java:1538)
	at org.jboss.aop.GeneratedClassAdvisor.rebuildInterceptorsForAddedBinding(GeneratedClassAdvisor.java:244)
	at org.jboss.aop.Advisor.newBindingAdded(Advisor.java:1124)
	at org.jboss.aop.AspectManager.updateAdvisorsForAddedBinding(AspectManager.java:1498)
	at org.jboss.aop.AspectManager.updateAdvisorsForAddedBinding(AspectManager.java:1521)
	at org.jboss.aop.AspectManager.addBinding(AspectManager.java:1456)
	at Caller.run(Caller.java:36)
	at Caller.main(Caller.java:57)

If the field visibility is public the exception is not thrown anymore.
Can someone tell me why?


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