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From "Andrea Ceccanti (JIRA)" <j...@apache.org>
Subject [jira] Commented: (WW-2956) setting devMode value to "true" causes NullPointerException
Date Fri, 10 Jul 2009 07:42:59 GMT

    [ https://issues.apache.org/struts/browse/WW-2956?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=46472#action_46472
] 

Andrea Ceccanti commented on WW-2956:
-------------------------------------

I didn't try the latest builds, I am speaking about 2.1.6. In my setup the error is raised
even if there are no spaces in 

* the tomcat installation path : /opt/tomcat/apache-tomcat-5.5.27
* the webapplication context path: /opt/tomcat/apache-tomcat-5.5.27/webapps/voms#test_vo_mysql

So it could be that the presence of spaces isn't the only reason behind this bug.

> setting devMode value to "true" causes NullPointerException
> -----------------------------------------------------------
>
>                 Key: WW-2956
>                 URL: https://issues.apache.org/struts/browse/WW-2956
>             Project: Struts 2
>          Issue Type: Bug
>    Affects Versions: 2.1.6
>         Environment: Windows 2003 Server SP2, JRE 1.6.0_07, Tomcat 6.0.18
>            Reporter: Semion Oshchepkov
>            Priority: Blocker
>             Fix For: 2.1.7
>
>         Attachments: WW-2956-1.patch, WW-2956.patch
>
>
> I enabled devMode in struts2-blank-2.1.6 application and it's caused such deployment
exception:
> org.apache.catalina.core.StandardContext filterStart
> SEVERE: Exception starting filter struts2
> java.lang.NullPointerException
> 	at com.opensymphony.xwork2.util.FileManager$FileRevision.needsReloading(FileManager.java:209)
> 	at com.opensymphony.xwork2.util.FileManager.fileNeedsReloading(FileManager.java:60)
> 	at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.needsReload(XmlConfigurationProvider.java:325)
> 	at org.apache.struts2.config.StrutsXmlConfigurationProvider.needsReload(StrutsXmlConfigurationProvider.java:168)
> 	at com.opensymphony.xwork2.config.ConfigurationManager.conditionalReload(ConfigurationManager.java:220)
> 	at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:61)
> 	at org.apache.struts2.dispatcher.Dispatcher.getContainer(Dispatcher.java:774)
> 	at org.apache.struts2.dispatcher.ng.InitOperations.initStaticContentLoader(InitOperations.java:77)
> 	at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:49)
> 	at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:275)
> 	at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:397)
> 	at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:108)
> 	at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3709)
> 	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4363)
> 	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
> 	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
> 	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)
> 	at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:830)
> 	at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:719)
> 	at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:490)
> 	at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1149)
> 	at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
> 	at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
> 	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
> 	at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)
> 	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
> 	at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
> 	at org.apache.catalina.core.StandardService.start(StandardService.java:516)
> 	at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
> 	at org.apache.catalina.startup.Catalina.start(Catalina.java:578)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> 	at java.lang.reflect.Method.invoke(Unknown Source)
> 	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
> 	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
> Also struts2-showcase-2.1.6 (where devMode is default) throws same exception:
> org.apache.catalina.core.StandardWrapperValve invoke
> SEVERE: Servlet.service() for servlet jsp threw exception
> java.lang.NullPointerException
> 	at com.opensymphony.xwork2.util.FileManager$FileRevision.needsReloading(FileManager.java:209)
> 	at com.opensymphony.xwork2.util.FileManager.fileNeedsReloading(FileManager.java:60)
> 	at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.needsReload(XmlConfigurationProvider.java:325)
> 	at org.apache.struts2.config.StrutsXmlConfigurationProvider.needsReload(StrutsXmlConfigurationProvider.java:168)
> 	at com.opensymphony.xwork2.config.ConfigurationManager.conditionalReload(ConfigurationManager.java:220)
> 	at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:61)
> 	at org.apache.struts2.dispatcher.Dispatcher.getContainer(Dispatcher.java:774)
> 	at org.apache.struts2.dispatcher.ng.PrepareOperations.createActionContext(PrepareOperations.java:74)
> 	at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareFilter.doFilter(StrutsPrepareFilter.java:59)
> 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
> 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> 	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
> 	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
> 	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
> 	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
> 	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
> 	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
> 	at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:857)
> 	at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:565)
> 	at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1509)
> 	at java.lang.Thread.run(Unknown Source)

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