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Samebug tips

  1. ,
    via Stack Overflow by ERJAN

    This exception occurs when using an older version of java. Mainly when trying to run a jar compiled with a newer Java version in an older Java version. We can avoid this issue by executing the jar in the same version which it was compiled.

  2. ,
    via Google Groups by Marcus Haebler

    Update "latest" to Java 8 on DockerHub.

Solutions on the web

via eclipse-ccase by lzheng
, 1 year ago
Bad version number in .class file
via Google Groups by momalxa, 1 year ago
Bad version number in .class > file
via Google Groups by Pavlin Dobrev, 2 years ago
java.lang.UnsupportedClassVersionError: Bad version number in .class file at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(Unknown Source) at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.defineClass( at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.defineClass( at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findClassImpl( at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClassImpl(