Getting java.lang.NullPointerException when calling Method.invoke

Question

I\'m following this tutorial on Java annotaitons and implemented the Test annotation as shown there. But when running the code I get the following output.

java.l         


        

Answer 1

The Method#invoke has the answer to your question:

public Object invoke(Object obj,
            Object... args)
              throws IllegalAccessException,
                     IllegalArgumentException,
                     InvocationTargetException

Throws: NullPointerException - if the specified object is null and the method is an instance method.