RTC and Clearquest bridge

Here is the error message :

There were problems modifying links that require the referenced resource to maintain a back link.
Error accessing http://<Clearquest>/record/16777238-33992297?oslc.properties=oslc_cm%3ArelatedChangeRequest&oslc.prefix=oslc_cm%3D%3Chttp%3A%2F%2Fopen-services.net%2Fns%2Fcm%23%3E: Internal Server Error <xml> <rdf> <Error> <message>java.lang.NullPointerException</message> <statusCode>500</statusCode>


Does anyone have any idea ?

Hi, we've seen this error when the OSLCLinks package is not applied to the record type you are linking to (and we're improving the error message in an upcoming CQ patch). If the OSLCLinks package is applied to the record type, please take a look at the SystemOut.log on the CQ Web server for the full error. If you can append that here, it will help us determine what is wrong.

Best Regards,
Sam Padgett
CQ Web and CQ Bridge Technical Lead

Sam is right.

You should read through the ClearQuest technote on how to set up and configure CQ-RTC bridge.

https://www-304.ibm.com/support/docview.wss?uid=swg21433074

Yuhong Yin

Hi.
Thanks Sam and Yuhong.

The error message i could find on SytemOut.log of the CQ web server is as follows :

0000007e RestServletCo E com.ibm.rational.cm.rest.controller.RestServletController doRestCall null
java.lang.NullPointerException
at com.ibm.rational.cm.rest.links.OslcLinksUtil.reconcileUpdatedLinkValues(OslcLinksUtil.java:284)
at com.ibm.rational.cm.rest.request.AbstractRecordActionHandler.getReconciledLinksValueForModify(AbstractRecordActionHandler.java:382)
at com.ibm.rational.cm.rest.request.AbstractRecordActionHandler.getReconciledLinksValue(AbstractRecordActionHandler.java:377)
at com.ibm.rational.cm.rest.request.AbstractRecordActionHandler.setLinkValues(AbstractRecordActionHandler.java:364)
at com.ibm.rational.cm.rest.request.OslcV2ChangeRequestXmlActionHandler.parseOslcChangeRequest(OslcV2ChangeRequestXmlActionHandler.java:90)
at com.ibm.rational.cm.rest.request.XmlRecordActionHandler.parseRequest(XmlRecordActionHandler.java:93)
at com.ibm.rational.cm.rest.request.AbstractRecordActionHandler.updateRecord(AbstractRecordActionHandler.java:225)
at com.ibm.rational.cm.rest.handlers.RecordHandler.doPutResource(RecordHandler.java:374)
at com.ibm.rational.cm.rest.controller.RestServletController.doRestCall(RestServletController.java:241)
at com.ibm.rational.cm.rest.controller.RestServletController.doPut(RestServletController.java:333)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:766)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1152)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1087)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:145)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:78)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:77)
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:190)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:130)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain._doFilter(WebAppFilterChain.java:87)
at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:837)
at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:680)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:588)
at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:481)
at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3507)
at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:269)
at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:815)
at com.ibm.ws.wswebcontainer.WebContainer.handleRequest(WebContainer.java:1466)
at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:122)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:458)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewInformation(HttpInboundLink.java:387)
at com.ibm.ws.http.channel.inbound.impl.HttpICLReadCallback.complete(HttpICLReadCallback.java:102)
at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:165)
at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217)
at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161)
at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:136)
at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:196)
at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:751)
at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:881)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1497)


rgds

Sam is right.

You should read through the ClearQuest technote on how to set up and configure CQ-RTC bridge.

https://www-304.ibm.com/support/docview.wss?uid=swg21433074

Yuhong Yin

Yes, this looks exactly like the error you will see if the OSLCLinks package is not applied to the record type. You'll want to apply the package to avoid the problem. See the link from Yuhong above for instructions.

- Thanks, Sam