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Asked: 2026-06-04T15:57:28+00:00

I know this question may seems stupid since i cannot give a lot of

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I know this question may seems stupid since i cannot give a lot of infos about it, but I think that the problem has to be some kind of bug…

I have written a java program whith NetBeans 7.1, which now gets me this error when trying to run. 10 mins ago it was perfectly running, and i have changed nothing to the class the error refers to

Could this be some kind of NetBeans error? Maybe it is a well know problem?

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1 Answer

  1. Editorial Team

    The JDK says for ClassFormatError:

    Thrown when the Java Virtual Machine attempts to read a class file and
    determines that the file is malformed or otherwise cannot be
    interpreted as a class file.

    Perhaps a class file has become corrupted. I am going to do the standard IT support statement.
    Have you tried restarting NetBeans?

    Hope that helps

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