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Editorial Team
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Asked: 2026-05-14T14:21:43+00:00

My application has recently started throwing NoClassDefFoundError errors when I am running my application

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My application has recently started throwing NoClassDefFoundError errors when I am running my application from within NetBeans. It never used to do this.

And when I run this outside of NetBeans using the command line argument that it provides once built, these errors are not produced

Is this a bug with Netbeans?

I have reinstalled NetBeans as I recently had another that was resolved by reinstalling, however the problem still persists.

Symbol error in java application using netbeans 6.8 when adding a shared project to library

Within Netbeans

alt text http://inverse.seednet.eu/snaps/ojtjal.png

Outside NetBeans
alt text http://inverse.seednet.eu/snaps/gdwb5y.png

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1 Answer

  1. Editorial Team

    The issue is the run time classpath of the run configuration when you are running it from netbeans. Make sure your run config has the jar containing these classes

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