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Re: Problem running examples




Hi,

On Don, 17 Aug 2000, Bernhard.Derks@ifs-gmbh.de wrote:
> Hi,
> 
> after a long way testing some settings (path / \, classpath) etc.
> i got an error running MyApp:
> 'java MyApp create' shows NullPointerException, 
> the stack  from ozone-server shows:
> 
> [info] (147) InvokeServer: user logged in: re02233
> [warn] (147) Transaction: nameObject()
>     java.lang.NullPointerException
>         at
> org.ozoneDB.core.wizardStore.WizardStore.nameContainer(WizardStore.java:297)
>         at org.ozoneDB.core.Transaction.nameObject(Transaction.java:429)
>         at org.ozoneDB.core.Transaction.createObject(Transaction.java:318)
>         at
> org.ozoneDB.core.DbRemote.DbCreateObj.perform(DbCreateObj.java:43)
> 
>         at org.ozoneDB.core.Transaction.performCommand(Transaction.java:189)
>         at
> org.ozoneDB.core.TransactionManager.performCommand(TransactionManager.java:3
> 04)
>         at
> org.ozoneDB.core.TransactionManager.completeTransaction(TransactionManager.j
> ava:276)
>         at
> org.ozoneDB.core.TransactionManager.handleCommand(TransactionManager.java:19
> 5)
>         at
> org.ozoneDB.core.InvokeServer.handleClientEvent(InvokeServer.java:76)
>         at
> org.ozoneDB.DxLib.net.DxMultiServerClient.run(DxMultiServerClient.java:36)
>         at java.lang.Thread.run(Unknown Source)
> [warn] (147) Transaction: ta(59): uncaught exception:
> (org.ozoneDB.OzoneInternalExc: java.lang.NullPointerException)
>     org.ozoneDB.OzoneInternalExc: java.lang.NullPointerException
>         at org.ozoneDB.core.Transaction.nameObject(Transaction.java:436)
>         at org.ozoneDB.core.Transaction.createObject(Transaction.java:318)
>         at
> org.ozoneDB.core.DbRemote.DbCreateObj.perform(DbCreateObj.java:43)
> 
>         at org.ozoneDB.core.Transaction.performCommand(Transaction.java:189)
>         at
> org.ozoneDB.core.TransactionManager.performCommand(TransactionManager.java:3
> 04)
>         at
> org.ozoneDB.core.TransactionManager.completeTransaction(TransactionManager.j
> ava:276)
>         at
> org.ozoneDB.core.TransactionManager.handleCommand(TransactionManager.java:19
> 5)
>         at
> org.ozoneDB.core.InvokeServer.handleClientEvent(InvokeServer.java:76)
>         at
> org.ozoneDB.DxLib.net.DxMultiServerClient.run(DxMultiServerClientjava:36)
>         at java.lang.Thread.run(Unknown Source)
> [info] (147) InvokeServer: connection closed (user: re02233)

I don't know what is the problem for this error. I presume that this is an
internal server error.

> Next Problem:  Even including './' in classpath there is the error in the
> simple-sample.
> After generating the Proxies and invoking 'java client' it shows 
> [warn] (561) Transaction: ta(54): uncaught exception:
> (org.ozoneDB.ClassNotFoundExc: BusImpl)
>     org.ozoneDB.ClassNotFoundExc: BusImpl
>         at org.ozoneDB.core.ClassManager.classForName(ClassManager.java:52)

Did you set the CLASSPATH environment on the server side too? The ozone server
needs to know where it can find the proxy class.

> Last problem: How to generate ozone from the Sources?
> There are a lot of errors and hints '...must be declared abstract...'

Hmm interesting, some minutes ago Ronald Joseph reported the same problem. He
is using JDK 1.3 from IBM. Which JDK to you use - the same? There is a problem
with Xerces which comes with this JDK from IBM.

Hope this helps a little bit,
Lars
-- 
___________________________________________________________________
Lars Martin                                 mailto:lars@smb-tec.com
SMB GmbH                                     http://www.smb-tec.com