Hi, Asiri.
The problem is Execution object is not completely initialized so it has
no ExecutionContext.
AFAIK, Execution need to be initialized explicitly by
ServletContainerInitializer or else.
Look at XWikiAction#initializeContainerComponent
So you need something similar before call XWiki.getXWiki(xwikiContext);
Asiri Rathnayake wrote:
> Hi Devs,
>
> Currently I have my pom file as bellow,
>
> <....>
> .....
> <dependency>
> <groupId>com.xpn.xwiki.platform</groupId>
> <artifactId>*xwiki-core*</artifactId>
> <version>*1.5-milestone-2*</version>
> </dependency>
> <dependency>
> <groupId>org.xwiki.platform</groupId>
> <artifactId>*xwiki-core-plexus*</artifactId>
> <version>*1.5-SNAPSHOT*</version>
> </dependency>
> .....
> </...>
>
> And everything is working fine :)
>
> But when i upgraded the pom file to use 1.6-SNAPSHOT versions of above
> dependencies as bellow,
>
> <....>
> .....
> <dependency>
> <groupId>com.xpn.xwiki.platform</groupId>
> <artifactId>*xwiki-core*</artifactId>
> <version>*1.6-SNAPSHOT*</version>
> </dependency>
> <dependency>
> <groupId>org.xwiki.platform</groupId>
> <artifactId>*xwiki-core-plexus*</artifactId>
> <version>*1.6-SNAPSHOT*</version>
> </dependency>
> .....
> </...>
>
> I get the follwing exception when trying to access the xwiki-webdav servlet,
>
> <dump>
> [INFO] Started Jetty Server
> java.lang.NullPointerException
> at
> org.xwiki.context.DefaultExecution.getContext(DefaultExecution.java:50)
> at
> com.xpn.xwiki.store.XWikiHibernateBaseStore.initialize(XWikiHibernateBaseStore.java:90)
> at
> org.xwiki.plexus.lifecycle.phase.InitializePhase.execute(InitializePhase.java:37)
> at
> org.codehaus.plexus.lifecycle.AbstractLifecycleHandler.start(AbstractLifecycleHandler.java:128)
> at
> org.codehaus.plexus.component.manager.AbstractComponentManager.startComponentLifecycle(AbstractComponentManager.java:142)
> at
> org.codehaus.plexus.component.manager.AbstractComponentManager.createComponentInstance(AbstractComponentManager.java:132)
> at
> org.codehaus.plexus.component.manager.ClassicSingletonComponentManager.getComponent(ClassicSingletonComponentManager.java:90)
> at
> org.codehaus.plexus.DefaultComponentLookupManager.lookup(DefaultComponentLookupManager.java:147)
> at
> org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:277)
> at
> org.codehaus.plexus.personality.plexus.lifecycle.phase.PlexusContainerLocator.lookup(PlexusContainerLocator.java:51)
> at
> org.xwiki.plexus.manager.PlexusComponentManager.lookup(PlexusComponentManager.java:56)
> at com.xpn.xwiki.web.Utils.getComponent(Utils.java:548)
> at com.xpn.xwiki.XWiki.initXWiki(XWiki.java:668)
> at com.xpn.xwiki.XWiki.<init>(XWiki.java:650)
> at com.xpn.xwiki.XWiki.getMainXWiki(XWiki.java:310)
> at com.xpn.xwiki.XWiki.getXWiki(XWiki.java:381)
> at
> com.xpn.xwiki.plugin.webdav.utils.XWikiDavParams.initXWikiContext(XWikiDavParams.java:99)
> at
> com.xpn.xwiki.plugin.webdav.utils.XWikiDavParams.<init>(XWikiDavParams.java:62)
> at
> com.xpn.xwiki.plugin.webdav.utils.XWikiResourceFactory.createResource(XWikiResourceFactory.java:97)
> at
> com.xpn.xwiki.plugin.webdav.utils.XWikiResourceFactory.createResource(XWikiResourceFactory.java:66)
> at
> com.xpn.xwiki.plugin.webdav.XWikiDavServlet.service(XWikiDavServlet.java:357)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> at
> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)
> at
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:363)
> at
> org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:219)
> at
> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
> at
> org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:738)
> at
> org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
> at
> org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:206)
> at
> org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:113)
> at
> org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> at org.mortbay.jetty.Server.handle(Server.java:325)
> at
> org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:535)
> at
> org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:873)
> at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:648)
> at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
> at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:391)
> at
> org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
> at
> org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488)
> </dump>
>
> Bellow is the way i initialize the xwiki context,
>
> <code>
> private void initXWikiContext(DavServletRequest drequest, DavServletResponse
> dresponse, ServletContext servletContext) throws XWikiException
> {
> if (this.xwikiEngine == null) {
> xwikiEngine = new XWikiServletContext(servletContext);
> }
>
> xwikiRequest = (this.xwikiRequest != null) ? this.xwikiRequest :
> new XWikiServletRequest(drequest);
> xwikiResponse = (this.xwikiResponse != null) ? this.xwikiResponse :
> new XWikiXMLRPCResponse(dresponse);
>
> xwikiContext = Utils.prepareContext("", xwikiRequest, xwikiResponse,
> xwikiEngine);
> xwikiContext.setMode(XWikiContext.MODE_GWT);
> xwikiContext.setDatabase("xwiki");
>
> * XWiki xwiki = XWiki.getXWiki(xwikiContext);
> * ...............
> }*
> *</code>
>
> The line "*XWiki xwiki = XWiki.getXWiki(xwikiContext);*" is where the
> exception gets thrown.
>
> Can any of you please help me fix this ? It would be a big help :)
>
> Thanks a lot.
--
Artem Melentyev
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