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Editorial Team
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Asked: 2026-05-14T03:15:39+00:00

We have a weblogic server 10.0 instance which has a cluster with one managed

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We have a weblogic server 10.0 instance which has a cluster with one managed server. Every Monday at 5am (or few seconds after), it shuts down on its own. The logs do not show any errors except the following message:

JVM called WLS shutdown hook. The server will force shutdown now.

JVM has a -Xnohup option and using JRockit. There is no cron job on the server. I am not sure how to debug this one. Admin Server keeps running with no issues and I am able to start the managed server back up with no problems. Any help is greatly appreciated.

Update:
I tried using -Djrockit.waitonerror, but JVM does not pause. I also see the following “panic” message in the log either just before or few minutes before. CharScanner; panic: ClassNotFoundException: org.antlr.stringtemplate.language.ChunkToken. Looks like this during some kind of Diagnostics run:

<Diagnostics> <BEA-320140> <Scheduling data retirement tasks as per configuration.>

Thanks.

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1 Answer

  1. Editorial Team

    Conflict with weblogic’s antlr version and the one used in the deployed app (war). Included that war in an ear file and put a weblogic-application.xml file in META-INF with the following:

    <weblogic-application xmlns="http://www.bea.com/ns/weblogic/90" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">      
<prefer-application-packages>
    <package-name>antlr.*</package-name>
</prefer-application-packages>

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