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Editorial Team
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Asked: 2026-06-10T06:35:43+00:00

It works fine when compiling project, but after exporting it to a runnable jar

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It works fine when compiling project, but after exporting it to a runnable jar and launching, it can’t find external files and throws an error. What should I do?

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  1. Editorial Team

    You could attempt building a fat jar that includes all the jars. It contains a custom class loader to load the jars referenced externally by your project.

    Try using http://fjep.sourceforge.net/ plugin to build a fat jar.

    You can export a java project containing jars using the File -> Export -> Other -> One Jar Exporter.

    enter image description here

    The jar thus exported works fine.

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