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getClass().getResource() error from jar file.

843805Jan 19 2007 — edited Mar 2 2007

I am using getClass().getResource("../images/image.gif") to refer to a resource and load it into the ImageIcon. So that my resource's url is dynamic and be got at runtime. It is working fine when I run my program, but when I exported my application into a jar file then while trying to execute the jar file using the
java -jar program.jar command it is giving the following error (Stack trace)

Exception in thread "main" java.lang.NullPointerException
        at javax.swing.ImageIcon.<init>(ImageIcon.java:138)
        at source.HashCalculator.<init>(HashCalculator.java:130)
        at source.HashCalculator.main(HashCalculator.java:2021)

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Locked on Mar 30 2007

Added on Jan 19 2007

#swing

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