Re: problems after upgrading jetty and hessian to the latest version

From: Andrus Adamchik (andru..bjectstyle.org)
Date: Tue Nov 23 2010 - 08:46:29 UTC

  • Next message: Aristedes Maniatis: "Re: problems after upgrading jetty and hessian to the latest version"

    Haven't tried the latest Hessian, but historically Hessian arbitrarily changed the serialization protocol between versions, so switching to a newer version required some tweaking on our end.

    Jetty 7 on the other hand just works... The only thing that caused me trouble with 6->7 upgrade about a year ago, was a change in cookie encoding algorithm.

    Andrus

    On Nov 17, 2010, at 12:33 AM, Marcin Skladaniec wrote:

    > Hello
    >
    > I was wondering if someone has tried cayenne with jetty 7 and hessian 4.
    >
    > After some trial and error I finally got to the stage where servlet is replying, but cayenne fails to establish ClientChannel. this is the log
    >
    > org.apache.cayenne.CayenneRuntimeException: [v.3.0.1 Aug 04 2010 18:38:23] Error establishing remote session. URL - http://localhost:8181/angel-server-cayenne; CAUSE - expected integer at 0x53 java.lang.String (org.apache.cayenne.remote.RemoteSession)
    > [java] [O] S [\x00'org.apache.cayenne.remote.RemoteSession\x94\x04name\x09sessionId\x12eventBridgeFactory\x15eventBridgeParameterso\x90N\x1913mrh1ds35gq3cu0vcyroaazzNNz]
    > at org.apache.cayenne.remote.hessian.HessianConnection.connect(HessianConnection.java:229)
    > [java] at org.apache.cayenne.remote.hessian.HessianConnection.getServerEventBridge(HessianConnection.java:114)
    > [java] at org.apache.cayenne.remote.ClientChannel.setupRemoteChannelListener(ClientChannel.java:299)
    > [java] at org.apache.cayenne.remote.ClientChannel.<init>(ClientChannel.java:95)
    > [java] at org.apache.cayenne.remote.ClientChannel.<init>(ClientChannel.java:77)
    > [java] at org.apache.cayenne.remote.ClientChannel.<init>(ClientChannel.java:72)
    > [java] at ish.oncourse.ContextManager.getDataChannel(ContextManager.java:84)
    > [java] at ish.oncourse.ContextManager.getChannel(ContextManager.java:70)
    > [java] at ish.oncourse.ContextManager.getNewDedicatedContext(ContextManager.java:111)
    > [java] at ish.oncourse.controller.ViewController.getContext(ViewController.java:1091)
    >
    > seems like something has changed on the deserialisation level(?) in hessian, but I cannot pinpoint what.
    >
    > Has someone hit or maybe solved this problem?
    > Thanks
    > Marcin
    >

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