java.lang.NullPointerException: This exception has no message.

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via GitHub by damithc
, 1 year ago
This exception has no message.
via GitHub by damithc
, 1 year ago
This exception has no message.
via GitHub by damithc
, 1 year ago
This exception has no message.
via GitHub by damithc
, 1 year ago
This exception has no message.
java.lang.NullPointerException:
at teammates.ui.controller.StudentCourseJoinAction.execute(StudentCourseJoinAction.java:41)
at teammates.ui.controller.Action.executeAndPostProcess(Action.java:344)
at teammates.ui.controller.ControllerServlet.doPost(ControllerServlet.java:64)
at teammates.ui.controller.ControllerServlet.doGet(ControllerServlet.java:43)
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 teammates.storage.datastore.DatastoreFilter.doFilter(DatastoreFilter.java:29)
at com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java:37)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
at com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionHandlerMap.java:260)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
at com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java:78)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:148)
at com.google.tracing.TraceContext$TraceContextRunnable.runInContext(TraceContext.java:439)
at com.google.tracing.TraceContext$TraceContextRunnable$1.run(TraceContext.java:446)
at com.google.tracing.CurrentContext.runInContext(CurrentContext.java:256)
at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:310)
at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:302)
at java.lang.Thread.run(Thread.java:745)

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