javax.jdo.JDOUserException: Cannot read fields from a deleted object FailedObject

[damithc]

From dam...@gmail.com on February 03, 2014 09:56:02

We might be missing a check at Storage level:

javax.jdo.JDOUserException: Cannot read fields from a deleted object FailedObject:13715970 at org.datanucleus.jdo.state.PersistentDeleted.transitionReadField(PersistentDeleted.java:115) at org.datanucleus.state.AbstractStateManager.transitionReadField(AbstractStateManager.java:561) at org.datanucleus.state.JDOStateManagerImpl.isLoaded(JDOStateManagerImpl.java:1900) at teammates.storage.entity.Evaluation.jdoGetcourseID(Evaluation.java) at teammates.storage.entity.Evaluation.getCourseId(Evaluation.java:112) at teammates.common.datatransfer.EvaluationAttributes.(EvaluationAttributes.java:66) at teammates.common.datatransfer.EvaluationAttributes.toAttributes(EvaluationAttributes.java:243) at teammates.storage.api.EvaluationsDb.getEvaluationsForCourse(EvaluationsDb.java:61) at teammates.logic.core.EvaluationsLogic.getEvaluationsForCourse(EvaluationsLogic.java:124) at teammates.logic.core.EvaluationsLogic.getEvaluationsListForInstructor(EvaluationsLogic.java:176) at teammates.logic.core.CoursesLogic.getCoursesSummaryWithoutStatsForInstructor(CoursesLogic.java:353) at teammates.logic.api.Logic.getCourseSummariesWithoutStatsForInstructor(Logic.java:404) at teammates.ui.controller.InstructorHomePageAction.execute(InstructorHomePageAction.java:26) at teammates.ui.controller.Action.executeAndPostProcess(Action.java:125) at teammates.ui.controller.ControllerServlet.doPost(ControllerServlet.java:48) at teammates.ui.controller.ControllerServlet.doGet(ControllerServlet.java:34) at javax.servlet.http.HttpServlet.service(HttpServlet.java:617) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166) at teammates.ui.controller.LoginFilter.doFilter(LoginFilter.java:46) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) at teammates.storage.datastore.DatastoreFilter.doFilter(DatastoreFilter.java:28) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) at com.google.appengine.tools.appstats.AppstatsFilter.doFilter(AppstatsFilter.java:141) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) at com.google.apphosting.utils.servlet.ParseBlobUploadFilter.doFilter(ParseBlobUploadFilter.java:125) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) at com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java:35) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) at com.google.apphosting.utils.servlet.JdbcMySqlConnectionCleanupFilter.doFilter(JdbcMySqlConnectionCleanupFilter.java:60) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418) at com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionHandlerMap.java:266) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at org.mortbay.jetty.Server.handle(Server.java:326) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542) at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923) at com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java:76) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) at com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:146) at com.google.apphosting.runtime.JavaRuntime$RequestRunnable.run(JavaRuntime.java:446) at com.google.tracing.TraceContext$TraceContextRunnable.runInContext(TraceContext.java:437) at com.google.tracing.TraceContext$TraceContextRunnable$1.run(TraceContext.java:444) at com.google.tracing.CurrentContext.runInContext(CurrentContext.java:188) at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:308) at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:300) at com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:441) at com.google.apphosting.runtime.ThreadGroupPool$PoolEntry.run(ThreadGroupPool.java:251) at java.lang.Thread.run(Thread.java:724)

Original issue: http://code.google.com/p/teammatespes/issues/detail?id=1574

[damithc]

From dam...@gmail.com on February 02, 2014 17:56:12

Labels: -Type-Task Type-Bug

[damithc]

From dam...@gmail.com on February 02, 2014 17:57:07

Labels: -FaultTolerance FaultTolarence

[damithc]

From dam...@gmail.com on February 02, 2014 18:00:47

Or this may be a case of deleting in one window and trying to access it from another window.