http://openide.netbeans.org/issues/show_bug.cgi?id=11679

A public method is defined in package private class. The package private class is then extended by a public class ni the same package. So:

  Method theMethod = publicIntance.getClass().getMethod("theMethod");

returns proper method (quering it for accessibility returns true). And it is possible to call the method without reflection:

  publicInstance.theMethod();

but reflection invocation

  theMethod.invoke(publicInstance, new Object[0])

throws the exception.