[lyo-dev] Strange Behavior with RTC Sample Code

[Daniel Chirillo <chirillo@xxxxxxxxxx>]

I'm running the client sample code in org.eclipse.lyo.client.oslc.samples
against CLM 4.0.5 and am struggling with the following:

1.  RTCFormSample is sometimes
(more 'usually' than 'sometimes', actually) unable to create a change request
(Scenario C).  What I've seen so far is that when it can't, the server
(so far) returns a 403 (forbidden) or a 500 (Internal Server Error).  
It's really very odd.  I'll run the exact same code 10 times in a
row with various results.   

When a 500 is returned, there is an
exception in ccm.log:

2014-01-21 09:31:42,568 [http-bio-9443-exec-39
@@ 09:31 dan /ccm/oslc/contexts/_ZhCkgFC7EeODy79VBasTnw/drafts/workitems]
ERROR com.ibm.team.workitem.service   - Failed to serve the request
- 'oslc/contexts/_ZhCkgFC7EeODy79VBasTnw/drafts/workitems'. Reason - 'null
argument:'. 
org.eclipse.core.runtime.AssertionFailedException:
null argument:
        at
org.eclipse.core.runtime.Assert.isNotNull(Assert.java:85)
        at
org.eclipse.core.runtime.Assert.isNotNull(Assert.java:73)
        at
com.ibm.team.workitem.common.internal.workflow.StateGroupRegistry.getStateGroup(StateGroupRegistry.java:29)
        at
com.ibm.team.workitem.common.internal.workflow.WorkflowInfo.getStateGroup(WorkflowInfo.java:241)
        at
com.ibm.team.workitem.service.internal.oslc.util.OSLCPredicateSupport$OslcPredicateEvaluator.<init>(OSLCPredicateSupport.java:166)
        at
com.ibm.team.workitem.service.internal.oslc.util.OSLCPredicateSupport$OslcPredicateEvaluator.<init>(OSLCPredicateSupport.java:163)
        at
com.ibm.team.workitem.service.internal.oslc.util.OSLCPredicateSupport.getPredicateEvaluator(OSLCPredicateSupport.java:66)
        at
com.ibm.team.workitem.service.internal.oslc.resources.WorkItemResource.getPredicateEvaluator(WorkItemResource.java:746)
        at
com.ibm.team.workitem.service.internal.oslc.resources.WorkItemResource.getChildResource(WorkItemResource.java:266)
        at
com.ibm.team.workitem.service.internal.oslc.representations.RDFResourceRepresentation.renderComposite(RDFResourceRepresentation.java:314)
        at
com.ibm.team.workitem.service.internal.oslc.representations.RDFResourceRepresentation.renderComposite(RDFResourceRepresentation.java:285)
        at
com.ibm.team.workitem.service.internal.oslc.representations.RDFResourceRepresentation.render(RDFResourceRepresentation.java:111)
        at
com.ibm.team.workitem.service.internal.oslc.representations.RDFResourceRepresentation.render(RDFResourceRepresentation.java:101)
        at
com.ibm.team.workitem.service.internal.oslc.RequestHandler.handlePOST(RequestHandler.java:212)
        at
com.ibm.team.workitem.service.internal.oslc.OSLCService.perform_POST(OSLCService.java:56)
        at
com.ibm.team.repository.service.TeamRawService.service(TeamRawService.java:92)
        at
sun.reflect.GeneratedMethodAccessor484.invoke(Unknown Source)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at
java.lang.reflect.Method.invoke(Method.java:597)
        at
org.eclipse.soda.sat.core.internal.record.ExportProxyServiceRecord.invoke(ExportProxyServiceRecord.java:361)
        at
org.eclipse.soda.sat.core.internal.record.ExportProxyServiceRecord.access$0(ExportProxyServiceRecord.java:347)
        at
org.eclipse.soda.sat.core.internal.record.ExportProxyServiceRecord$ExportedServiceInvocationHandler.invoke(ExportProxyServiceRecord.java:56)
        at
com.sun.proxy.$Proxy1099.service(Unknown Source)
        at
com.ibm.team.repository.servlet.AbstractTeamServerServlet.doRestService(AbstractTeamServerServlet.java:909)
        at
com.ibm.team.repository.servlet.AbstractTeamServerServlet.handleRequest2(AbstractTeamServerServlet.java:2349)
        at
com.ibm.team.repository.servlet.AbstractTeamServerServlet.handleRequest(AbstractTeamServerServlet.java:2153)
        at
com.ibm.team.repository.servlet.AbstractTeamServerServlet.service(AbstractTeamServerServlet.java:1963)
        at
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
        at
org.eclipse.equinox.http.registry.internal.ServletManager$ServletWrapper.service(ServletManager.java:180)
        at
org.eclipse.equinox.http.servlet.internal.ServletRegistration.service(ServletRegistration.java:61)
        at
org.eclipse.equinox.http.servlet.internal.ProxyServlet.processAlias(ProxyServlet.java:126)
        at
org.eclipse.equinox.http.servlet.internal.ProxyServlet.service(ProxyServlet.java:76)
        at
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
        at
org.eclipse.equinox.servletbridge.BridgeServlet.service(BridgeServlet.java:120)
        at
com.ibm.team.repository.server.servletbridge.JazzServlet.service(JazzServlet.java:74)
        at
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
        at
com.ibm.team.repository.server.servletbridge.BridgeFilter.processDelegate(BridgeFilter.java:165)
        at
com.ibm.team.repository.server.servletbridge.BridgeFilter.doFilter(BridgeFilter.java:198)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
        at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
        at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
        at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:581)
        at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
        at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
        at
org.apache.catalina.authenticator.SingleSignOn.invoke(SingleSignOn.java:336)
        at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
        at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
        at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1002)
        at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585)
        at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
        at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
        at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
        at
java.lang.Thread.run(Thread.java:695)

2.  Even when RTCFormSample can
create the source, getEntity() (which it calls further down in the code...for
the purpose of doing a partial update) always throws an exception (java.lang.reflect.UndeclaredThrowableException
with no message) and the call to printStackTrace() on that exception throws
an OutOfMemoryError. 

3.  In fact (continuation of #2),
the only way I've been able to get a change request entity (in my own code)
has been to execute a query (that returns a result set of 1) and then loop
through the result set -- OslcQueryResult.getMembers() does properly/successfully
return entities.



Regards,

Daniel Chirillo
IBM Software Services for Rational
1-720-395-0914  (voice & fax)
chirillo@xxxxxxxxxx