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null pointer exception



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Trying to work through the tutorial, I get a NullPointerException in
the server when I issue "java MyApp create"  I'm using ozone 0.4 and
the precompiled ozone.jar file.

I'm sure I'm missing something in tutorial docs, but I can't figure
out what it is.  Any suggestions?

The (poorly formatted) stack trace:
[warn] (592) 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(TransactionMana
            ger.java:304)
        at
org.ozoneDB.core.TransactionManager.completeTransaction(Transactio
            nManager.java:276)
        at
org.ozoneDB.core.TransactionManager.handleCommand(TransactionManag
            er.java:195)
        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] (592) Transaction: ta(1): uncaught exception:
(org.ozoneDB.OzoneInternalE
xc: 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(TransactionMana
            ger.java:304)
        at
org.ozoneDB.core.TransactionManager.completeTransaction(Transactio
            nManager.java:276)
        at
org.ozoneDB.core.TransactionManager.handleCommand(TransactionManag
            er.java:195)
        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)

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