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  1. OpenOLAT
  2. OO-1052

RS concurrent change of the messages history of a chat

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      Description

      A thread change the message history, an other render it

      2014-04-02 10:31:17,208 [ajp-bio-8021-exec-25] ERROR Window  -OLAT::ERROR ^%^ N1-E96499 ^%^ org.olat.core.gui.components 
      Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, likeGecko) Chrome/33.0.1750.154 Safari/537.36
      **RedScreen** exception while rendering component 'vc_chatMsgField'(org.olat.core.gui.components.velocity.VelocityContainer)listener:[org.olat.instantMessaging.ui.ChatController[cListener:org.olat.instantMessaging.ui.ChatManagerController, ]]
      Message of exception: exception occured while merging template: null
      >>>stack of 1.cause::org.olat.core.logging.OLATRuntimeException: exception while rendering component 'vc_chatMsgField'(org.olat.core.gui.components.velocity.VelocityContainer)listener:[org.olat.instantMessaging.ui.ChatController[cListener:org.olat.instantMessaging.ui.ChatManagerController, ]]
      Message of exception: exception occured while merging template: null
      -> at org.olat.core.gui.components.Window.handleDirties(Window.java:963)
         at org.olat.core.gui.components.Window.dispatchRequest(Window.java:439)
         at org.olat.core.gui.components.Window.doDispatchRequest(Window.java:228)
         at org.olat.core.gui.components.Component.dispatchRequest(Component.java:192)
         at org.olat.dispatcher.AuthenticatedDispatcher.processValidDispatchURI(AuthenticatedDispatcher.java:241)
         at org.olat.dispatcher.AuthenticatedDispatcher.execute(AuthenticatedDispatcher.java:197)
         at org.olat.core.servlets.OpenOLATServlet.executeUserRequest(OpenOLATServlet.java:261)
         at org.olat.core.servlets.OpenOLATServlet.doGet(OpenOLATServlet.java:197)
         at javax.servlet.http.HttpServlet.service(HttpServlet.java:620)
         at org.olat.core.servlets.OpenOLATServlet.service(OpenOLATServlet.java:153)
         at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
      >>>stack of 2.cause::org.olat.core.logging.OLATRuntimeException: exception occured while merging template: null
      -> at org.olat.core.gui.render.velocity.VelocityHelper.merge(VelocityHelper.java:171)
         at org.olat.core.gui.render.velocity.VelocityHelper.mergeContent(VelocityHelper.java:184)
         at org.olat.core.gui.components.velocity.VelocityContainerRenderer.render(VelocityContainerRenderer.java:77)
         at org.olat.core.gui.render.Renderer.render(Renderer.java:257) at org.olat.core.gui.render.Renderer.render(Renderer.java:189)
         at org.olat.core.gui.components.Window.handleDirties(Window.java:949)
         at org.olat.core.gui.components.Window.dispatchRequest(Window.java:439)
         at org.olat.core.gui.components.Window.doDispatchRequest(Window.java:228)
         at org.olat.core.gui.components.Component.dispatchRequest(Component.java:192)
         at org.olat.dispatcher.AuthenticatedDispatcher.processValidDispatchURI(AuthenticatedDispatcher.java:241)
         at org.olat.dispatcher.AuthenticatedDispatcher.execute(AuthenticatedDispatcher.java:197)
      >>>stack of 3.cause::java.util.ConcurrentModificationException: null
      -> at java.util.ArrayList$Itr.checkForComodification(Unknown Source)
         at java.util.ArrayList$Itr.next(Unknown Source)
         at org.apache.velocity.runtime.directive.Foreach.render(Foreach.java:393)
         at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:207)
         at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)
         at org.apache.velocity.Template.merge(Template.java:356) at org.apache.velocity.Template.merge(Template.java:260)
         at org.olat.core.gui.render.velocity.VelocityHelper.merge(VelocityHelper.java:166)
         at org.olat.core.gui.render.velocity.VelocityHelper.mergeContent(VelocityHelper.java:184)
         at org.olat.core.gui.components.velocity.VelocityContainerRenderer.render(VelocityContainerRenderer.java:77)
         at org.olat.core.gui.render.Renderer.render(Renderer.java:257)
      

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            Assignee:
            srosse Stéphane Rossé
            Reporter:
            mkurian Matthai Kurian
            Tester:
            Matthai Kurian
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              Updated:
              Resolved:

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