How to trace a NullPointerException in a chain of getters

Question

If I get a NullPointerException in a call like this:

someObject.getSomething().getSomethingElse().
    getAnotherThing().getYetAnotherObject().getValue();
         


        

Answer 1

In IntelliJ IDEA you can set exceptionbreakpoints. Those breakpoints fire whenever a specified exception is thrown (you can scope this to a package or a class).

That way it should be easy to find the source of your NPE.

I would assume, that you can do something similar in netbeans or eclipse.

EDIT: Here is an explanation on how to add an exceptionbreakpoint in eclipse