getResource causing NullPointerException

Question

I know there have been multiple posts on the subject but my issue seems to be one that hasn't been brought up yet. Under no circumstance can I seem to get getResource to correctly return a path location. It got to the point where I try to find the current class' path and even that is giving me a null pointer exception. Here is a list of ways I have went about it.

testProject

src -klass.java
bin -klass.class
resource

lib

 public class Klass
 { 
        public void resourceTest()
        {   
            ClassLoader.getSystemResource(Klass.class.getSimpleName() + ".class").toString(); 
            Klass.class.getClass().getResource(Klass.class.getSimpleName() + ".class").toString();
            Klass.class.getClass().getClassLoader().getResource(Klass.class.getSimpleName() + ".class").toString();   
        }
 }

Please let me know if I'm doing anything wrong. I've used getResource before so this is driving me crazy. Thanks!

All of these calls are throwing the same Exception, aren't they? — Joffrey, Apr 24 '14 at 15:11
Also, `Klass.class.getClass().getResource(...)` should be `Klass.class.getResource(...)` — Nick Holt, Apr 24 '14 at 15:18

score 2 · Accepted Answer · answered Apr 24 '14 at 15:11

2

Klass.class.getClass() is equivalent to Class.class, since the class of Klass.class is Class. So this would be trying to load a resource in the java.lang package. You just want Klass.class.getResource().

answered Apr 24 '14 at 15:11

Russell Zahniser

16,188
39
30

score -1 · Answer 2 · answered Apr 24 '14 at 15:11

-1

There is a klass.class as last row. Try to use Klass.class with capital K

answered Apr 24 '14 at 15:11

Tonino

1,137
10
25

getResource causing NullPointerException

2 Answers2