RS upload file in QTI 2.1

2017-01-26 11:31:55,202 [ajp-nio2-8008-exec-162] ERROR QTI21ServiceImpl  - OLAT::ERROR ^%^ N8-E107 ^%^ org.olat.ims.qti21.manager 

https://olat.xyz.ch/auth/RepositoryEntry/36306946/CourseNode/94771127120915/test/0 ^%^ Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_2) AppleWebKit/602.3.12 (KHTML, like Gecko) Version/10.0.2 Safari/602.3.12 
>>>stack of 1.cause::java.nio.file.AtomicMoveNotSupportedException: /tmp/xyz/upload-bzgbs_8_95008923417730
-> /fx/appfs/xyz/bcroot/qtiassessment/36306946/94771127120915/1704205_20170126T112420-302678017/submissions/Arbeitsblatt-220170126T113155.docx: Invalid cross-device link
-> at sun.nio.fs.UnixCopyFile.move(UnixCopyFile.java:394)
   at sun.nio.fs.UnixFileSystemProvider.move(UnixFileSystemProvider.java:262)
   at java.nio.file.Files.move(Files.java:1395)
   at org.olat.ims.qti21.manager.QTI21ServiceImpl.importFileSubmission(QTI21ServiceImpl.java:908)
   at org.olat.ims.qti21.ui.AssessmentTestDisplayController.handleResponse(AssessmentTestDisplayController.java:750)
   at org.olat.ims.qti21.ui.AssessmentTestDisplayController.processQTIEvent(AssessmentTestDisplayController.java:490)
   at org.olat.ims.qti21.ui.AssessmentTestDisplayController.event(AssessmentTestDisplayController.java:387)
   at org.olat.core.gui.control.DefaultController$1.run(DefaultController.java:246)
   at org.olat.core.logging.activity.ThreadLocalUserActivityLoggerInstaller.runWithUserActivityLogger(ThreadLocalUserActivityLoggerInstaller.java:108)
   at org.olat.core.gui.control.DefaultController.dispatchEvent(DefaultController.java:243)
   at org.olat.core.gui.control.DefaultController.fireEvent(DefaultController.java:190)
   

2017-01-26 11:31:55,203 [ajp-nio2-8008-exec-162] ERROR OLATRuntimeException  - OLAT::ERROR ^%^ N8-E108 ^%^ org.olat.core.logging
https://olat.xyz.ch/auth/RepositoryEntry/36306946/CourseNode/94771127120915/test/0
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_2) AppleWebKit/602.3.12 (KHTML, like Gecko) Version/10.0.2 Safari/602.3.12 ^%^ **RedScreen**

<dispatchinfo>
	<componentinfo>
		<compname>ffo_main_at_run</compname>
		<compclass>org.olat.core.gui.components.form.flexible.impl.FormWrapperContainer</compclass>
		<extendedinfo>n/a</extendedinfo>
		<event>
			<class>org.olat.core.gui.control.Event</class>
			<command>validation ok</command>
			<tostring>com:validation ok,org.olat.core.gui.control.Event@d62b3f02</tostring>
		</event>
	</componentinfo>
	<controllerinfo>
		<controllername>org.olat.ims.qti21.ui.AssessmentTestDisplayController$QtiWorksController</controllername>
		<controllername>org.olat.ims.qti21.ui.AssessmentTestDisplayController</controllername>
		<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: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 org.olat.ims.qti21.ui.AssessmentTestDisplayController.handleResponse(AssessmentTestDisplayController.java:751)
   at org.olat.ims.qti21.ui.AssessmentTestDisplayController.processQTIEvent(AssessmentTestDisplayController.java:490)
   at org.olat.ims.qti21.ui.AssessmentTestDisplayController.event(AssessmentTestDisplayController.java:387)
   at org.olat.core.gui.control.DefaultController$1.run(DefaultController.java:246)
   at org.olat.core.logging.activity.ThreadLocalUserActivityLoggerInstaller.runWithUserActivityLogger(ThreadLocalUserActivityLoggerInstaller.java:108)
   at org.olat.core.gui.control.DefaultController.dispatchEvent(DefaultController.java:243)
   at org.olat.core.gui.control.DefaultController.fireEvent(DefaultController.java:190)
   at org.olat.core.gui.components.form.flexible.impl.FormBasicController.fireEvent(FormBasicController.java:711)
   at org.olat.ims.qti21.ui.AssessmentTestDisplayController$QtiWorksController.fireResponse(AssessmentTestDisplayController.java:1409)
   at org.olat.ims.qti21.ui.AbstractQtiWorksController.processResponse(AbstractQtiWorksController.java:111)
   at org.olat.ims.qti21.ui.AssessmentTestDisplayController$QtiWorksController.formOK(AssessmentTestDisplayController.java:1360)