On 07/07/2011 01:31, eurotrans-Verlag wrote: > Hi all, > > I’m using Tomcat 7.0.16 on a system with Java 1.6.0_26 on Windows Serer 2008 > and wondered about a strange NPE I got shortly after deploying a webapp to > Tomcat:
> SCHWERWIEGEND: An exception or error occurred in the container during the
> request processing
> java.lang.NullPointerException
> at
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
> va:287)
> at
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
> va:164)
> at
> org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase
> .java:462)
> at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164
> )
> at
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100
> )
> at
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
> :118)
> at
> org.apache.catalina.valves.CrawlerSessionManagerValve.invoke(CrawlerSessionM
> anagerValve.java:172)
> at
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:403)
> at
> org.apache.coyote.ajp.AjpAprProcessor.process(AjpAprProcessor.java:284)
> at
> org.apache.coyote.ajp.AjpAprProtocol$AjpConnectionHandler.process(AjpAprProt
> ocol.java:146)
> at
> org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:
> 1730)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.ja
> va:886)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:9
> 08)
> at java.lang.Thread.run(Thread.java:662)
>
>
> From looking at Tomcat 7.0.16's source, I can see that line 287 in
> StandardWrapperValve is inside a catch block:
>
> 285 } catch (Throwable e) {
> 286 ExceptionUtils.handleThrowable(e);
> 287 container.getLogger().error(sm.getString(
> 288 "standardWrapper.serviceException", wrapper.getName(),
> 289 context.getName()), e);
> 290 throwable = e;
> 291 exception(request, response, e);
> 292 }
>
> So does that mean that another Exception/Error occurred, but was suppressed
> by that NPE and therefore couldn't be logged?
What is the request for and is the config of your Tomcat instance
modified from the original download - if so, what has changed (config etc)?
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