NP when accessing workflow states using java plain API
"How do I get state of a work item?" ("scm.exe compare blabla" does not output state of work item)
We've tried the following:
Given some project area, we need to locate the work item types:
IProjectArea pr_area = …;
IWorkItemClient wiclient = (IWorkItemClient)repo.getClientLibrary(IWorkItemClient.class);
List<IWorkItemType> witypes = wiclient.findWorkItemTypes(pr_area, null);
Calling findWorkItemTypes() gives NullPointerException. See attached trace.
We also need to get info about state on work items:
IWorkItem iwi = ...;
IWorkItemClient wiiClient = (IWorkItemClient)repo.getClientLibrary(IWorkItemClient.class);
IWorkflowInfo info = wiiClient.findWorkflowInfo(iwi, null);
Calling findWorkflowInfo() also gives a NullPointerException ending in same line of org.apache.xerces.util.ParserConfigurationSettings.java
Any input on how to move ahead is welcome :-)
Stacktrace: 13:09:08 [E] Caused by: java.lang.NullPointerException 13:09:08 [E] at java.util.Hashtable.put(Hashtable.java:542) 13:09:08 [E] at org.apache.xerces.util.ParserConfigurationSettings.setProperty(Unknown Source) 13:09:08 [E] at org.apache.xerces.parsers.XML11Configuration.setProperty(Unknown Source) 13:09:08 [E] at org.apache.xerces.parsers.AbstractSAXParser.setProperty(Unknown Source) 13:09:08 [E] at com.ibm.team.process.internal.common.model.ModelGenerator.enableValidation(ModelGenerator.java:106) 13:09:08 [E] at com.ibm.team.process.internal.common.model.ModelGenerator.generate(ModelGenerator.java:86) 13:09:08 [E] at com.ibm.team.process.internal.client.ThinClientProcess.createConfigurationData(ThinClientProcess.java:342) 13:09:08 [E] at com.ibm.team.process.internal.client.ThinClientProcess.getProjectConfigurationData(ThinClientProcess.java:280) 13:09:08 [E] at com.ibm.team.workitem.client.internal.AuditableClientProcess.findProcessConfiguration(AuditableClientProcess.java:72) 13:09:08 [E] at com.ibm.team.workitem.common.internal.ConfigurationItemManager.resolveProcessConfiguration(ConfigurationItemManager.java:124) 13:09:08 [E] at com.ibm.team.workitem.common.internal.ConfigurationItemManager.readConfigurationItems(ConfigurationItemManager.java:107) 13:09:08 [E] at com.ibm.team.workitem.common.internal.WorkItemTypeManager.readConfigurationItems(WorkItemTypeManager.java:370) 13:09:08 [E] at com.ibm.team.workitem.common.internal.ConfigurationItemManager.updateCache(ConfigurationItemManager.java:99) 13:09:08 [E] at com.ibm.team.workitem.common.internal.util.CacheHelper.internalCheckCache(CacheHelper.java:107) 13:09:08 [E] at com.ibm.team.workitem.common.internal.util.CacheHelper.checkCache(CacheHelper.java:73) 13:09:08 [E] at com.ibm.team.workitem.common.internal.util.CacheHelper.checkCache(CacheHelper.java:65) 13:09:08 [E] at com.ibm.team.workitem.common.internal.ConfigurationItemManager.findConfigurationItems(ConfigurationItemManager.java:48) 13:09:08 [E] at com.ibm.team.workitem.common.internal.WorkItemCommon.findWorkItemTypes(WorkItemCommon.java:408) 13:09:08 [E] at com.systematic.javaenv.internal.teamconcert.changequery.RTC.defineBasics(RTC.java:165) 13:09:08 [E] at com.systematic.javaenv.internal.teamconcert.changequery.RTC.execute(RTC.java:112)
13:09:08 [E] ... 21 more |
2 answers
Issue has been solved. There was no problem with code. Initially, the code was executed from within an Ant context (http://ant.apache.org). Somehow Ant apparently made certain properties inaccessible. When running the job without Ant, but with the same java + jars, the code works fine.
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As Susan suggests, it sounds like your work item client is null. I have very similar code that works:
IWorkItemClient workItemClient= (IWorkItemClient)repo.getClientLibrary(IWorkItemClient.class); IWorkItem handle= workItemClient.findWorkItemById(workItemId, IWorkItem.SMALL_PROFILE, monitor);Do you have com.ibm.team.workitem.client listed as a required bundle in your plugin's manifest? |
Comments
Have you looked at if you are getting a WorkItemClient back from your first line?
I have code that basically does the same thing for fineWorkflowInfo(workItem,null) from the WorkItemClient() and for findWorkItemTypes(project_area,null).
Susan