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  1. XWiki Platform
  2. XWIKI-20175

NPE can occur when accessing the revision of a deleted document

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Details

    • Bug
    • Resolution: Duplicate
    • Major
    • None
    • 14.8
    • None
    • None
    • Unknown

    Description

      I managed to reproduce this with Blog Application documents, as well as with pages from other applications.
      Steps to reproduce:

      1. Install Blog application, the latest version
      2. Delete Blog.BlogIntroduction (has object) or Blog.BlogCode (hasn't object)
      3. Go to Page Index -> Deleted Pages
      4. Click on the page line in Page columns

      Expected result:  access http://127.0.0.1:8080/xwiki/bin/view/Blog/BlogIntroduction/ with the possibility of restoring the page
      Actual result: access http://127.0.0.1:8080/xwiki/bin/view/Blog/BlogIntroduction?rev=deleted%3A19 with the following error

      Detailed information:    Error number 0 in 11: Uncaught exception
      com.xpn.xwiki.XWikiException: Error number 0 in 11: Uncaught exception
      	at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:612)
      	at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:289)
      	at com.xpn.xwiki.web.LegacyActionServlet.service(LegacyActionServlet.java:114)
      	at javax.servlet.http.HttpServlet.service(HttpServlet.java:590)
      	at org.eclipse.jetty.servlet.ServletHolder$NotAsync.service(ServletHolder.java:1419)
      	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:764)
      	at org.eclipse.jetty.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1624)
      	at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:122)
      	at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
      	at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1594)
      	at org.xwiki.wysiwyg.filter.ConversionFilter.doFilter(ConversionFilter.java:61)
      	at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
      	at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1594)
      	at org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208)
      	at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
      	at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1594)
      	at org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111)
      	at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
      	at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1594)
      	at org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:132)
      	at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
      	at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1594)
      	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:506)
      	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:131)
      	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:596)
      	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
      	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:223)
      	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1571)
      	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
      	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1378)
      	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:176)
      	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:463)
      	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1544)
      	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:174)
      	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1300)
      	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:129)
      	at org.eclipse.jetty.server.Dispatcher.forward(Dispatcher.java:215)
      	at org.eclipse.jetty.server.Dispatcher.forward(Dispatcher.java:135)
      	at com.xpn.xwiki.web.XWikiAction.redirectSpaceURLs(XWikiAction.java:1097)
      	at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:459)
      	at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:289)
      	at com.xpn.xwiki.web.LegacyActionServlet.service(LegacyActionServlet.java:114)
      	at javax.servlet.http.HttpServlet.service(HttpServlet.java:590)
      	at org.eclipse.jetty.servlet.ServletHolder$NotAsync.service(ServletHolder.java:1419)
      	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:764)
      	at org.eclipse.jetty.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1624)
      	at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:122)
      	at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
      	at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1594)
      	at org.xwiki.wysiwyg.filter.ConversionFilter.doFilter(ConversionFilter.java:61)
      	at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
      	at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1594)
      	at org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:63)
      	at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
      	at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1594)
      	at org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208)
      	at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
      	at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1594)
      	at org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111)
      	at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
      	at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1594)
      	at org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:132)
      	at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:210)
      	at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1594)
      	at org.eclipse.jetty.websocket.servlet.WebSocketUpgradeFilter.doFilter(WebSocketUpgradeFilter.java:164)
      	at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
      	at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1594)
      	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:506)
      	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:131)
      	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:578)
      	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
      	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:223)
      	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1571)
      	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
      	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1378)
      	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:176)
      	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:463)
      	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1544)
      	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:174)
      	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1300)
      	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:129)
      	at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:192)
      	at org.eclipse.jetty.server.handler.HandlerList.handle(HandlerList.java:51)
      	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
      	at org.eclipse.jetty.server.Server.handle(Server.java:562)
      	at org.eclipse.jetty.server.HttpChannel.lambda$handle$0(HttpChannel.java:418)
      	at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:675)
      	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:410)
      	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:282)
      	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:319)
      	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:100)
      	at org.eclipse.jetty.io.SocketChannelEndPoint$1.run(SocketChannelEndPoint.java:101)
      	at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.runTask(AdaptiveExecutionStrategy.java:412)
      	at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.consumeTask(AdaptiveExecutionStrategy.java:381)
      	at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.tryProduce(AdaptiveExecutionStrategy.java:268)
      	at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.lambda$new$0(AdaptiveExecutionStrategy.java:138)
      	at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:407)
      	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:894)
      	at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1038)
      	at java.base/java.lang.Thread.run(Thread.java:829)
      Caused by: java.lang.NullPointerException
      	at com.xpn.xwiki.web.ViewAction.render(ViewAction.java:73)
      	at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:587)
      	... 99 more
      

       

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              acotiuga Alex Cotiugă
              acotiuga Alex Cotiugă
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                Updated:
                Resolved: