Java Snippet runs once on Server but then fails until Server is restarted ( additional libraries loading problem)


I have a Workflow running on a Server that has a Java snippet that loads additional libraries from a mountpoint.
When the server is restarted, the workflow works until you change the configuration in some way → after which the snippet throws classloader exceptions, class already loaded, on classes in the jar library.

the closest I’ve found to this issue is: Java Snippet runs once then keeps failing until KNIME app is restarted - KNIME Analytics Platform - KNIME Community Forum

which seems similar, but is also unresolved.

Has anyone run into this issue? Maybe has found a solution?

Best Regards,


I recommend that you open a new support ticket with us directly at so that we can work with you in investigating details like the server/executor logs, and the java snippets &etc directly.

Thank you,

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