Exception in thread "main" java.lang.AssertionError: Subclass must override this method

Exception in thread "main" java.lang.AssertionError: Subclass must override this method

   at java.lang.reflect.AccessibleObject.getAnnotation(libgcj.so.7rh)

   at org.kohsuke.args4j.ClassParser.parse(ClassParser.java:21)

   at org.kohsuke.args4j.CmdLineParser.<init>(CmdLineParser.java:91)

   at hudson.remoting.Launcher.main(Launcher.java:170)

To overcome this on launching slave.jar as part of jekins setup, try using latest java version.

This should be solved on using the latest java versions.