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java.lang.NoClassDefFoundError: at java.lang.J9VMInternals.verifyImpl(Native Method) at java.lang.J9VMInternals.verify( at java.lang.J9VMInternals.initialize( at com.adobe.epubcheck.ocf.OCFChecker.runChecks( at com.adobe.epubcheck.api.EpubCheck.validate( at com.adobe.epubcheck.tool.Checker.main(