RS if guest try to access a LTI course element

2016-02-04 12:50:42,145 [ajp-nio2-8001-exec-5] ERROR OLATRuntimeException - OLAT::ERROR ^%^ N1-E9 

https://xyz.olat.com/auth/RepositoryEntry/89653257/CourseNode/89324668642203 ^%^ Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:43.0) Gecko/20100101 Firefox/43.0 

**RedScreen**
<dispatchinfo>
	<componentinfo>
		<compname>luTreeRun</compname>
		<compclass>org.olat.core.gui.components.tree.MenuTree</compclass>
		<extendedinfo>n/a</extendedinfo>
		<event>
			<class&gt;org.olat.core.gui.components.tree.TreeEvent</class&gt;
			<command>ctncl</command>
			<tostring>TreeEvent:{cmd:ctncl, nodeid:87888032544739}</tostring>
		</event>
	</componentinfo>
	<controllerinfo>
		<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:536)
   at org.olat.core.gui.components.Window.doDispatchRequest(Window.java:234)
   at org.olat.core.gui.components.AbstractComponent.dispatchRequest(AbstractComponent.java:193)
   at org.olat.dispatcher.AuthenticatedDispatcher.processValidDispatchURI(AuthenticatedDispatcher.java:298)
   at org.olat.dispatcher.AuthenticatedDispatcher.execute(AuthenticatedDispatcher.java:216)
   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:648)
>>> stack of 2.cause::java.lang.NullPointerException: null
-> at java.util.Hashtable.put(Hashtable.java:459)
   at org.olat.course.nodes.basiclti.LTIRunController.createExchangeDataProperties(LTIRunController.java:209)
   at org.olat.course.nodes.basiclti.LTIRunController.<init>(LTIRunController.java:143)
   at org.olat.course.nodes.BasicLTICourseNode.createNodeRunConstructionResult(BasicLTICourseNode.java:117)
   at org.olat.course.run.navigation.NavigationHandler.doEvaluateJumpTo(NavigationHandler.java:437)
   at org.olat.course.run.navigation.NavigationHandler.evaluateJumpToTreeNode(NavigationHandler.java:272)
   at org.olat.course.run.RunMainController.doNodeClick(RunMainController.java:617)
   at org.olat.course.run.RunMainController.event(RunMainController.java:478)
   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)