while i crating a adapter notification i’m getting an exception
com.wm.app.b2b.server.ServiceException: java.lang.NullPointerException
at wm.server.VCS.runIfEnabled(VCS.java:186)
at wm.server.VCS.checkout(VCS.java:129)
at wm.server.nsimpl.lockNode(nsimpl.java:370)
at wm.server.nsimpl.deleteNode(nsimpl.java:2335)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.wm.app.b2b.server.JavaService.baseInvoke(JavaService.java:439)
at com.wm.app.b2b.server.invoke.InvokeManager.process(InvokeManager.java:635)
at com.wm.app.b2b.server.util.tspace.ReservationProcessor.process(ReservationProcessor.java:46)
at com.wm.app.b2b.server.invoke.StatisticsProcessor.process(StatisticsProcessor.java:44)
at com.wm.app.b2b.server.invoke.ServiceCompletionImpl.process(ServiceCompletionImpl.java:232)
at com.wm.app.b2b.server.invoke.ValidateProcessor.process(ValidateProcessor.java:51)
at com.wm.app.b2b.server.invoke.PipelineProcessor.process(PipelineProcessor.java:171)
at com.wm.app.b2b.server.ACLManager.process(ACLManager.java:266)
at com.wm.app.b2b.server.invoke.DispatchProcessor.process(DispatchProcessor.java:30)
at com.wm.app.b2b.server.AuditLogManager.process(AuditLogManager.java:384)
at com.wm.app.b2b.server.invoke.InvokeManager.invoke(InvokeManager.java:539)
at com.wm.app.b2b.server.invoke.InvokeManager.invoke(InvokeManager.java:384)
at com.wm.app.b2b.server.ServiceManager.invoke(ServiceManager.java:226)
at com.wm.app.b2b.server.comm.DefaultServerRequestHandler.handleMessage(DefaultServerRequestHandler.java:119)
at com.wm.app.b2b.server.HTTPMessageHandler.process(HTTPMessageHandler.java:160)
at com.wm.app.b2b.server.HTTPDispatch.handleRequest(HTTPDispatch.java:190)
at com.wm.app.b2b.server.Dispatch.run(Dispatch.java:354)
at com.wm.util.pool.PooledThread.run(PooledThread.java:131)
at java.lang.Thread.run(Thread.java:619)
pls send me the solution