2017-10-17 10:44:23,942 [ajp-nio2-8009-exec-8] ERROR OLATRuntimeException - OLAT::ERROR ^%^ N1-E60 ^%^ org.olat.core.logging
https:Mozilla/5.0 (iPad; CPU OS 10_2 like Mac OS X) AppleWebKit/602.3.12 (KHTML, like Gecko) Version/10.0 Mobile/14C92 Safari/602.1
**RedScreen**
<dispatchinfo>
<componentinfo>
<compname>start</compname>
<compclass>org.olat.core.gui.components.link.Link</compclass>
<extendedinfo>n/a</extendedinfo>
<event>
<class>org.olat.core.gui.control.Event</class>
<command>start</command>
<tostring>com:start,org.olat.core.gui.control.Event@68ac481</tostring>
</event>
</componentinfo>
<controllerinfo>
<controllername>org.olat.course.nodes.iq.QTI21AssessmentRunController</controllername>
<controllername>org.olat.course.run.RunMainController</controllername>
<controllername>org.olat.course.run.CourseRuntimeController</controllername>
<controllername>org.olat.core.commons.fullWebApp.BaseFullWebappController</controllername>
</controllerinfo>
</dispatchinfo>
>>> stack of 1.cause::org.olat.core.logging.OLATRuntimeException: null
-> at org.olat.core.gui.exception.ExceptionWindowController.<init>(ExceptionWindowController.java:116)
at org.olat.core.gui.exception.MsgFactory.createMessageChiefController(MsgFactory.java:57)
at org.olat.core.gui.exception.MsgFactory.createMessageChiefController(MsgFactory.java:46)
at org.olat.core.gui.components.Window.dispatchRequest(Window.java:549)
at org.olat.core.gui.components.Window.doDispatchRequest(Window.java:242)
at org.olat.core.gui.components.AbstractComponent.dispatchRequest(AbstractComponent.java:193)
at org.olat.dispatcher.AuthenticatedDispatcher.processValidDispatchURI(AuthenticatedDispatcher.java:273)
at org.olat.dispatcher.AuthenticatedDispatcher.execute(AuthenticatedDispatcher.java:190)
at org.olat.core.servlets.OpenOLATServlet.executeUserRequest(OpenOLATServlet.java:289)
at org.olat.core.servlets.OpenOLATServlet.doPost(OpenOLATServlet.java:232)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:661)
>>> stack of 2.cause::java.lang.NullPointerException: null
-> at org.olat.ims.qti21.ui.AssessmentTestDisplayController.isEnded(AssessmentTestDisplayController.java:411)
at org.olat.course.nodes.iq.QTI21AssessmentRunController.doStart(QTI21AssessmentRunController.java:574)
at org.olat.course.nodes.iq.QTI21AssessmentRunController.event(QTI21AssessmentRunController.java:445)
at org.olat.core.gui.control.DefaultController.dispatchEvent(DefaultController.java:202)
at org.olat.core.gui.components.AbstractComponent$1.run(AbstractComponent.java:240)
at org.olat.core.logging.activity.ThreadLocalUserActivityLoggerInstaller.runWithUserActivityLogger(ThreadLocalUserActivityLoggerInstaller.java:108)
at org.olat.core.gui.components.AbstractComponent.fireEvent(AbstractComponent.java:238)
at org.olat.core.gui.components.link.Link.dispatch(Link.java:200)
at org.olat.core.gui.components.link.Link.doDispatchRequest(Link.java:187)
at org.olat.core.gui.components.AbstractComponent.dispatchRequest(AbstractComponent.java:193)
at org.olat.core.gui.components.Window.doDispatchToComponent(Window.java:1143)