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jordan.horwat
jordan.horwat
New Participant
April 20, 2018

KB-1559 "java.lang.NullPointerException" error when deploying Appian using WebLogic 12.2.1.0.0 and later

  • April 20, 2018
  • 0 replies
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Symptoms

After following Appian documentation on configuring WebLogic, the deployment of suite.ear fails and returns the following exception in the application server log, located at <WEBLOGIC_HOME>/<project_name>/domains/<domain_name>/servers/<server_name>/logs/<server_name>.log

<Failure occurred in the execution of deployment request with ID "XXX" for task "X" on [partition-name: DOMAIN]. Error is: "weblogic.application.ModuleException: java.lang.NullPointerException"
weblogic.application.ModuleException: java.lang.NullPointerException
 at weblogic.application.internal.ExtensibleModuleWrapper.prepare(ExtensibleModuleWrapper.java:114)

The WebLogic Administrator Console shows the following exception:

java.lang.NullPointerException

Cause

For WebLogic 12.2.1.0.0 and later, the JAR antlr-2.7.6.jar packaged with the ear file conflicts with the default class loader.

Action

Add the -DANTLR_USE_DIRECT_CLASS_LOADING=true parameter to the last occurrence of the JAVA_OPTIONS section in the setDomainEnv.bat|sh file to match the following:

set JAVA_OPTIONS=-Duser.timezone=GMT -Dfile.encoding=UTF-8 -Djavax.xml.soap.MessageFactory=weblogic.xml.saaj.MessageFactoryImpl -Djava.awt.headless=true -Xms512m -Xmx1024m -XX:+HeapDumpOnOutOfMemoryError -Dweblogic.log.RedirectStdoutToServerLogEnabled=true -Dweblogic.log.RedirectStderrToServerLogEnabled=true -DANTLR_USE_DIRECT_CLASS_LOADING=true %JAVA_OPTIONS%

Affected Versions

This article applies to all versions of Appian using WebLogic 12.2.1.0.0 and later.

Last Reviewed: April 2018

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