Null pointer exception in EntityResolver

From: Marcin Skladaniec (marci..sh.com.au)
Date: Wed Aug 09 2006 - 20:44:00 EDT

  • Next message: Marcin Skladaniec: "Re: Many to many relation problems"

    Hi !

    I'm running cayenne [v.3.0-PROTO June 21 2006] in remote persistence.
    Sometimes I'm getting this exception. Is it fixed in current release ?

    2006-08-02 12:25:19,207 [AWT-EventQueue-0] ERROR
    com.ish.angel.controller.EditController - Exception thrown during save:
    org.objectstyle.cayenne.CayenneRuntimeException: [v.3.0-PROTO June 21
    2006] Remote error. URL - http://192.168.3.167:8181/angel-server-cayenne
    at
    org.objectstyle.cayenne.remote.hessian.HessianConnection.doSendMessage
    (HessianConnection.java:181)
    at org.objectstyle.cayenne.remote.BaseConnection.sendMessage
    (BaseConnection.java:109)
    at org.objectstyle.cayenne.remote.ClientChannel.send
    (ClientChannel.java:278)
    at org.objectstyle.cayenne.remote.ClientChannel.onSync
    (ClientChannel.java:188)
    at org.objectstyle.cayenne.CayenneContext.doCommitChanges
    (CayenneContext.java:233)
    at org.objectstyle.cayenne.CayenneContext.commitChanges
    (CayenneContext.java:220)
    at com.ish.angel.cayenne.CayenneContext.commitChanges(Unknown Source)
    (...)long stack of swing events here(...)
    Caused by: java.lang.NullPointerException
    at org.objectstyle.cayenne.map.EntityResolver.lookupObjEntity
    (EntityResolver.java:514)
    at org.objectstyle.cayenne.access.ChildDiffLoader.arcDeleted
    (ChildDiffLoader.java:157)
    at org.objectstyle.cayenne.graph.ArcDeleteOperation.apply
    (ArcDeleteOperation.java:80)
    at org.objectstyle.cayenne.graph.CompoundDiff.apply(CompoundDiff.java:
    133)
    at org.objectstyle.cayenne.access.DataContext.onContextFlush
    (DataContext.java:1215)
    at org.objectstyle.cayenne.access.ClientServerChannel.onCommit
    (ClientServerChannel.java:191)
    at org.objectstyle.cayenne.access.ClientServerChannel.onSync
    (ClientServerChannel.java:143)
    at org.objectstyle.cayenne.remote.service.DispatchHelper.dispatch
    (DispatchHelper.java:80)
    at
    org.objectstyle.cayenne.remote.service.BaseRemoteService.processMessage(
    BaseRemoteService.java:182)
    at sun.reflect.GeneratedMethodAccessor18.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at com.caucho.hessian.server.HessianSkeleton.invoke
    (HessianSkeleton.java:157)
    at
    org.objectstyle.cayenne.remote.hessian.service._HessianServlet.service
    (_HessianServlet.java:388)
    at com.ish.angel.server.CayenneServlet.service(Unknown Source)
    at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:
    428)
    at org.mortbay.jetty.servlet.ServletHandler.dispatch
    (ServletHandler.java:666)
    at org.mortbay.jetty.servlet.ServletHandler.handle
    (ServletHandler.java:568)
    at org.mortbay.http.HttpContext.handle(HttpContext.java:1530)
    at org.mortbay.http.HttpContext.handle(HttpContext.java:1482)
    at org.mortbay.http.HttpServer.service(HttpServer.java:909)
    at org.mortbay.http.HttpConnection.service(HttpConnection.java:816)
    at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:982)
    at org.mortbay.http.HttpConnection.handle(HttpConnection.java:833)
    at org.mortbay.http.SocketListener.handleConnection
    (SocketListener.java:244)
    at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:357)
    at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:534)

    -------------------------->
    ish
    http://www.ish.com.au
    Level 1, 30 Wilson Street Newtown 2042 Australia
    phone +61 2 9550 5001 fax +61 2 9550 4001

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