com.wm.app.prt. ProcessException: [PRT.0101.9125]

Hi,
Can you please let me know why & when this will occur?

 com.wm.app.prt.ProcessException: [PRT.0101.9125] Service {0} failed java.lang.NullPointerException 
at com.wm.app.prt.Storage.unlockGlobalData(Storage.java:895) 
at com.wm.app.prt.StepDispatcherAgent.handleServiceError(StepDispatcherAgent.java:1895) 
at com.wm.app.prt.StepDispatcherAgent.runStep(StepDispatcherAgent.java:1873) 
at com.wm.app.prt.StepDispatcherAgent.execute(StepDispatcherAgent.java:818)
at com.wm.app.prt.StepDispatcherAgent.synchRun(StepDispatcherAgent.java:85)
at com.wm.app.prt.StepDispatcherAgent.synchRun(StepDispatcherAgent.java:103)
at com.wm.app.prt.StepDispatcherAgent.synchRun(StepDispatcherAgent.java:103)
at com.wm.app.prt.StepDispatcherAgent.synchRun(StepDispatcherAgent.java:103)
at com.wm.app.prt.StepDispatcher.startStep(StepDispatcher.java:836) 
at com.wm.app.prt.StepDispatcher.dispatch(StepDispatcher.java:798) 
at com.wm.app.prt.StepDispatcher.handleNativeDoc(StepDispatcher.java:687) 
at wm.prt.dispatch.handlePublishedInput(dispatch.java:853) 
at sun.reflect.GeneratedMethodAccessor48.invoke(Unknown Source) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
at java.lang.reflect.Method.invoke(Method.java:324) 
at com.wm.app.b2b.server.JavaService.baseInvoke(JavaService.java:287) 
at com.wm.app.b2b.server.invoke.InvokeManager.process(InvokeManager.java:587) 
at com.wm.app.b2b.server.invoke.StatisticsProcessor.process(StatisticsProcessor.java:44) 
at com.wm.app.b2b.server.invoke.ServiceCompletionImpl.process(ServiceCompletionImpl.java:229) 
at com.wm.app.b2b.server.invoke.ValidateProcessor.process(ValidateProcessor.java:49) 
at com.wm.app.b2b.server.ACLManager.process(ACLManager.java:198) 
at com.wm.app.b2b.server.invoke.DispatchProcessor.process(DispatchProcessor.java:39) 
at com.wm.app.b2b.server.AuditLogManager.process(AuditLogManager.java:407) 
at com.wm.app.b2b.server.invoke.InvokeManager.invoke(InvokeManager.java:503) 
at com.wm.app.b2b.server.invoke.InvokeManager.invoke(InvokeManager.java:325)

Thanks
Peter

Where and at what point are you getting this error???

Elaborate more with your details/issue/IS version etc…So that you will get timely response…

HTH,
RMG