Facing issue in deploying guvnor.war in tomcat 7.0.30

Question

How do I deploy the guvnor.war (Version 5.4.0.Final) in Tomcat 7.0.30 server? Its giving me the following error:

Type: Exception report

Message

Description: The server encountered an internal error that prevented it from fulfilling this request.

Exception

java.lang.NullPointerException
  org.jboss.seam.transaction.TransactionServletListener.requestInitialized(TransactionServletListener.java:106)
  org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
  org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)
  org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
  org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1002)
  org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585)
  org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
  java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
  java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
  java.lang.Thread.run(Thread.java:722)

Note The full stack trace of the root cause is available in the Apache Tomcat/7.0.30 logs.

Answer 1

The following resolved the above issue for me. I have TomCat 7.0.34 installed with 5.4.0 Final of Guvnor.

You can disable the seam transaction listener by adding appropriate <context-param> to the web.xml file that you should find in

[tomcat-dir]\webapps\[nameOfGuvnorJar]\WEB-INF\

where [tomcat-dir] is your top level directory path to where you have installed Tomcat. and [nameOfGuvnorJar] is the name you gave to the guvnor application that you have deployed in Tomcat.

The lines required are

<context-param>
   <param-name>org.jboss.seam.transaction.disableListener</param-name>
   <param-value>true</param-value>
</context-param>

It needs to be added inside the <web-app> element

You will probably need to restart the webserver for the change to be picked up.