public class JavacBug { 

interface ObjectInterface<T extends PropertyInteface<?>> {} 

class ObjectImpl implements ObjectInterface<PropertyImpl> {} 

interface PropertyInteface<T extends ObjectInterface<?>> {} 

class PropertyImpl implements PropertyInteface<ObjectImpl> {} 

<T extends ObjectInterface<P>, P extends PropertyInteface<T>> void testMethod(P prorety) { 
if (prorety instanceof PropertyImpl) {} //cause the java.lang.StackOverflowError 
} 

}