Error in running custom query from jspx(site) for Content Tracker Report

Question

Hi All,
I want to generate a custom Content Tracker Report. I am able to do so from Content Tracker console, but when i try to invoke the service 'SCT_GET_DOCUMENT_INFO_ADMIN' or 'SCT_GET_DOCUMENT_INFO' with my custom query(which simply counts the number of rows in a table) from my jspx page, it gives the following error.
oracle.stellent.wcm.server.request.RequestException: Error
occurred in Content Server executing service
'SCT_GET_DOCUMENT_INFO_ADMIN'
Caused By: oracle.stellent.ridc.protocol.ServiceException: Unable to get
document info. Unable to execute service method 'sctExecuteQuery'. The
error was caused by an internally generated issue. The error has been
logged.
What could be the reason and the resolution?
Also, I know that i am invoking the service in the right way as custom report from query as 'select * from users' works fine from site.
P.S. I am using UCM 11g + SSXA

Answer 1

Things are turning weird. The below two queries work from jspx.
1. SELECT * FROM Users
2. SELECT dname FROM Users
But, the following query gives error (SQL is correct).
select dname, count(dname) from users group by dname
Unable to execute service method 'sctExecuteQuery'. Null pointer is dereferenced.
$Unable to get document info.!csUnableToExecMethod,sctExecuteQuery!syNullPointerException
intradoc.common.ServiceException: !$Unable to get document info.!csUnableToExecMethod,sctExecuteQuery
*ScriptStack SCT_GET_DOCUMENT_INFO_ADMIN
3:sctExecuteQuery,**no captured values**
at intradoc.server.ServiceRequestImplementor.buildServiceException(ServiceRequestImplementor.java:2115)
at intradoc.server.Service.buildServiceException(Service.java:2260)
at intradoc.server.Service.createServiceExceptionEx(Service.java:2254)
at intradoc.server.Service.createServiceException(Service.java:2249)
at intradoc.server.Service.doCodeEx(Service.java:584)
at intradoc.server.Service.doCode(Service.java:505)
at intradoc.server.ServiceRequestImplementor.doAction(ServiceRequestImplementor.java:1643)
at intradoc.server.Service.doAction(Service.java:477)
at intradoc.server.ServiceRequestImplementor.doActions(ServiceRequestImplementor.java:1458)
at intradoc.server.Service.doActions(Service.java:472)
at intradoc.server.ServiceRequestImplementor.executeActions(ServiceRequestImplementor.java:1391)
at intradoc.server.Service.executeActions(Service.java:458)
at intradoc.server.ServiceRequestImplementor.doRequest(ServiceRequestImplementor.java:737)
at intradoc.server.Service.doRequest(Service.java:1890)
at intradoc.server.ServiceManager.processCommand(ServiceManager.java:435)
at intradoc.server.IdcServerThread.processRequest(IdcServerThread.java:265)
at intradoc.server.IdcServerThread.run(IdcServerThread.java:160)
at weblogic.work.SelfTuningWorkManagerImpl$WorkAdapterImpl.run(SelfTuningWorkManagerImpl.java:528)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:207)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:176)
Caused by: java.lang.NullPointerException
at java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:768)
at intradoc.util.IdcConcurrentHashMap.get(IdcConcurrentHashMap.java:60)
This works fine from Content Tracker UI.
Anyone has any idea, what could be the issue here?