Troubleshooting

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JAR Compatibility List

There are some known compatibility issues regarding JAR files in the /userlib directory. This page lists the problematic JAR files and the known workarounds.

JAR file Exception in the log Workaround
xml-apis.jar java.util.concurrent.ExecutionException: Boxed Error or java.lang.NoClassDefFoundError: org/w3c/dom/Document Use an alternative xml-apis.jar. Download it here.
servlet-api.jar java.lang.LinkageError: javax/servlet/http/HttpServletRequest Remove servlet-api.jar from the userlib directory.
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