When Jenkins fails to initialize, it tries to execute a user-definable script. 
But that can only work when Jenkins is already successfully initialized. Will 
file a bug about this.

That said, there should be another SEVERE message just above the null pointer 
with more details on what the actual problem is.

On 13.09.2014, at 23:42, Jason Swager <[email protected]> wrote:

> I'm having the same problem.  I'm trying to install Jenkins 1.579 into Tomcat 
> 7 which is running on a Synology NAS server.  The only thing I can find is 
> the exception that's listed above.
> 
> Anyone know how to solve this problem?
> Jason
> 
> On Saturday, July 5, 2014 11:50:25 AM UTC-7, Swarup Rakshit wrote:
> 
>  Hi Team,
> 
>  I am trying to setup new jenkins in tomcat server. I tried to reinstall 
> jenkins war couple of times found same error. can you please help ?
> 
>  Thanks
> Here is error trace, 
> 
> Jul 03, 2014 6:56:03 PM org.apache.catalina.core.StandardContext listenerStart
> SEVERE: Exception sending context initialized event to listener instance of 
> class hudson.WebAppMain
> java.lang.NullPointerException
>         at jenkins.util.groovy.GroovyHookScript.run(GroovyHookScript.java:63)
>         at hudson.util.BootFailure.publish(BootFailure.java:43)
>         at hudson.WebAppMain.contextInitialized(WebAppMain.java:244)
>         at 
> org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4939)
>         at 
> org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5434)
>         at 
> org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
>         at 
> org.apache.catalina.manager.ManagerServlet.start(ManagerServlet.java:1258)
>         at 
> org.apache.catalina.manager.HTMLManagerServlet.start(HTMLManagerServlet.java:716)
>         at 
> org.apache.catalina.manager.HTMLManagerServlet.doPost(HTMLManagerServlet.java:221)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
>         at 
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
>         at 
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
>         at 
> org.apache.catalina.filters.CsrfPreventionFilter.doFilter(CsrfPreventionFilter.java:213)
>         at 
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
>         at 
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
>         at 
> org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
>         at 
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
>         at 
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
>         at 
> org.apache.catalina.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:108)
>         at 
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
>         at 
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
>         at 
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
>         at 
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
>         at 
> org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:611)
>         at 
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
>         at 
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
>         at 
> org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
>         at 
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
>         at 
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
>         at 
> org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
>         at 
> org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
>         at 
> org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
>         at 
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
>         at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
>         at java.lang.Thread.run(Thread.java:722) 
> 
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