Re: handleClientException()

["wen xie" <xwlj01@hotmail.com>]

I don't quite understand it. Everything is working fine before the server is 
shut down. When I restart the server and try to run my program again. The 
server throws handleClientException(), and I think because of this 
exception, I get null object from Ozone, that's why I got NPE on the client 
side.

Wen


>From: Falko Braeutigam <falko@smb-tec.com>
>Reply-To: ozone-users@ozone-db.org
>To: ozone-users@ozone-db.org
>Subject: Re: handleClientException()
>Date: Wed, 22 Aug 2001 10:29:32 +0200
>
>On Tue, 21 Aug 2001, you wrote:
> > Hi,
> >
> > I stored some objects in OzoneDB and did something to them. Everything 
>is
> > working fine. But when I shut down the server and restart it, then I 
>tried
> > to retrieve the objects again and I got the following error on the 
>server
> > side:
> >
> > [info] (341) InvokeServer: connection established...
> > [info] (396) InvokeServer: user logged in: jromano
> > [info] (396) ClusterStore: loadCluster(): load cluster from disk: 104
> > [warn] (396) InvokeServer: handleClientException():
> > java.net.SocketException: Co
> > nnection reset by peer: JVM_recv in socket input stream read
> >     java.net.SocketException: Connection reset by peer: JVM_recv in 
>socket
> >              input stream read
> >         at java.net.SocketInputStream.socketRead(Native Method)
> >         at java.net.SocketInputStream.read(SocketInputStream.java:86)
> >         at 
>java.io.BufferedInputStream.fill(BufferedInputStream.java:186)
> >         at 
>java.io.BufferedInputStream.read(BufferedInputStream.java:204)
> >         at 
>java.io.ObjectInputStream.peekCode(ObjectInputStream.java:1549)
> >         at java.io.ObjectInputStream.refill(ObjectInputStream.java:1683)
> >         at 
>java.io.ObjectInputStream.readObject(ObjectInputStream.java:283)
> >         at 
>java.io.ObjectInputStream.readObject(ObjectInputStream.java:236)
> >         at org.ozoneDB.DxLib.net.DxClient.receive(DxClient.java:107)
> >         at
> > org.ozoneDB.DxLib.net.DxMultiServerClient.run(DxMultiServerClient.
> >             java:44)
> >         at java.lang.Thread.run(Thread.java:484)
> > [info] (396) InvokeServer: connection closed (user: jromano)
> >
> > And on the client side, I got:
> >
> > D:\projects\datalayer\jbproject\DataLayer\classes>java
> > com.glue.persistence.test
> > com\glue\persistence\persistence.properties
> > Exception in thread "main" java.lang.NullPointerException
> >         at
> > com.glue.persistence.ozone.GTOzoneImpl.objectsOfClass(GTOzoneImpl.jav
> > a:123)
>
>Well, seems that you got a NPE at GTOzoneImpl.java:123, which forced the
>client to stop, which shutdown the client end of the socket, which caused 
>the
>SocketException on server side.
>
>Falko
>--
>______________________________________________________________________
>Falko Braeutigam                              mailto:falko@smb-tec.com
>SMB GmbH                                        http://www.smb-tec.com
>
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