JBoss throws "CharScanner; panic: ClassNotFoundException" error and then shuts down

Solution Verified - Updated -

Issue

  • JBoss server is randomly throwing the following error and then shutting down right after:
    ERROR [STDERR] (ajp-127.0.0.1-8009-16) CharScanner; panic: ClassNotFoundException: org.antlr.stringtemplate.language.ChunkToken
INFO  [org.jboss.bootstrap.microcontainer.ServerImpl] (JBoss Shutdown Hook) Runtime shutdown hook called, forceHalt: true

Environment

  • Red Hat JBoss Enterprise Application Platform (EAP)
    • 5.1.0

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