“A JNI Error has occurred” for one instance of the program, not for another

Question

I made a large program in Eclipse Java Mars on one computer which worked fine. I exported the program as a runable Jar-file and running it gave no problem whatsoever. Even w

Answer 1

Eclipse presents different ways to export JAR for a project. To have the native library (or libraries) available when running the exported JAR, choose "package required libraries in generated JAR" option.