Re: Exception with Tomcat's session restore capability

From: Dave Dombrosky (dombr..mail.com)
Date: Mon Sep 11 2006 - 17:22:24 EDT

  • Next message: Andrus Adamchik: "Re: Exception with Tomcat's session restore capability"

    Andrus,

    Those are the only objectstyle lines in the stack trace. The next
    line up is my code calling a "get" method on a DataObject property, so
    I'm not sure how seeing my code would be useful.

    -Dave

    On 9/11/06, Andrus Adamchik <andru..bjectstyle.org> wrote:
    > Dave,
    >
    > could you post the rest of the stack? Looks like the fault fires on
    > deserialization, i.e. too early in the container lifecycle when there
    > is no DB connection yet. Normally this shouldn't happen. I wonder
    > what causes it; and the answer might be a few steps up the stack trace.
    >
    > Andrus
    >
    >
    > On Sep 11, 2006, at 1:46 PM, Dave Dombrosky wrote:
    >
    > > I am currently having problems when trying to use Cayenne 1.2 along
    > > with Tomcat's (v5.0.28) session restore capability. That is to say,
    > > if I deploy new code and restart tomcat, it saves the session data
    > > instead of starting with all new sessions when it starts up.
    > >
    > > My problem is that I used to be able to restart and stay logged in
    > > using version 1.1. Version 1.2 seems to have problems with trying to
    > > look up data after I have restarted Tomcat, and I get this stack trace
    > > caused by a NullPointerException:
    > >
    > > org.objectstyle.cayenne.access.ObjectStore.resolveHollow
    > > (ObjectStore.java:945)
    > > org.objectstyle.cayenne.access.DataContext.prepareForAccess
    > > (DataContext.java:1842)
    > > org.objectstyle.cayenne.CayenneDataObject.readProperty
    > > (CayenneDataObject.java:238)
    > >
    > > I couldn't find anyone else with this problem, so I assume I am doing
    > > something wrong and it's not a bug. Any ideas?
    > >
    > > -Dave
    > >
    >
    >



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