RS batch pull of QTI 2.1 tests

2017-02-26 20:08:08,815 [ajp-nio2-8006-exec-543] ERROR OLATRuntimeException - OLAT::ERROR ^%^ N1-E4348 ^%^ org.olat.core.logging 

https://olat.bbw.ch/auth/RepositoryEntry/493518880/assessmentToolv2/0/BusinessGroups/0/Node/95035532394079/BusinessGroup/484475460/Node/95035532394079

Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:45.0) Gecko/20100101 Firefox/45.0 ^%^ **RedScreen**

<dispatchinfo>
	<componentinfo>
		<compname>correction.test.title</compname>
		<compclass>org.olat.core.gui.components.link.Link</compclass>
		<extendedinfo>n/a</extendedinfo>
		<event>
			<class&gt;org.olat.core.gui.control.Event</class&gt;
			<command>correction.test.title</command>
			<tostring>com:correction.test.title,org.olat.core.gui.control.Event@790b76ab</tostring>
		</event>
	</componentinfo>
	<controllerinfo>
		<controllername>org.olat.ims.qti21.ui.assessment.QTI21CorrectionToolController</controllername>
		<controllername>org.olat.course.assessment.ui.tool.IdentityListCourseNodeController</controllername>
		<controllername>org.olat.course.assessment.ui.tool.AssessmentIdentityListCourseTreeController</controllername>
		<controllername>org.olat.course.assessment.ui.tool.AssessedBusinessGroupCourseNodeListController</controllername>
		<controllername>org.olat.course.assessment.ui.tool.AssessmentCourseTreeController</controllername>
		<controllername>org.olat.course.assessment.ui.tool.AssessmentToolController</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:548)
   at org.olat.core.gui.components.Window.doDispatchRequest(Window.java:241)
   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:292)
   at org.olat.core.servlets.OpenOLATServlet.doPost(OpenOLATServlet.java:235)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
>>> stack of 2.cause::java.lang.NullPointerException: null
-> at java.util.HashSet.<init>(HashSet.java:118)
   at org.olat.ims.qti21.ui.assessment.IdentitiesAssessmentTestCorrectionController.getAssessedIdentities(IdentitiesAssessmentTestCorrectionController.java:227)
   at org.olat.ims.qti21.ui.assessment.IdentitiesAssessmentTestCorrectionController.<init>(IdentitiesAssessmentTestCorrectionController.java:108)
   at org.olat.ims.qti21.ui.assessment.QTI21CorrectionToolController.doStartCorrection(QTI21CorrectionToolController.java:109)
   at org.olat.ims.qti21.ui.assessment.QTI21CorrectionToolController.event(QTI21CorrectionToolController.java:84)
   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:199)
   at org.olat.core.gui.components.link.Link.doDispatchRequest(Link.java:186)