[TM4J-users] NullPointerException when accessing Objects from Ozone via TMAPI

[Marcus F. <mar...@we...>]

Hello TM4J-Experts,

 

I'm trying to work with TMAPI and Ozone 1.1 as Backend for TM4J 0.9.8. I'm
parsing an XTM-File with TMAPI-Utils, everything is fine. But when I try to
access topics I get the following exception:

 

java.lang.NullPointerException

            java.util.Hashtable.get(Hashtable.java:333)

 
org.tm4j.topicmap.ozone.OzoneTopicMapImpl.getObjectByID(OzoneTopicMapImpl.ja
va:772)

            sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39
)

 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl
.java:25)

            java.lang.reflect.Method.invoke(Method.java:324)

 
org.ozoneDB.core.AbstractObjectContainer.invokeTarget(AbstractObjectContaine
r.java:233)

            org.ozoneDB.core.Transaction.invokeObject(Transaction.java:802)

            org.ozoneDB.core.DbRemote.DbInvoke.perform(DbInvoke.java:63)

 
org.ozoneDB.core.Transaction.performCommand(Transaction.java:416)

 
org.ozoneDB.core.TransactionManager.performCommand(TransactionManager.java:4
03)

 
org.ozoneDB.core.TransactionManager.completeTransaction(TransactionManager.j
ava:369)

 
org.ozoneDB.core.TransactionManager.handleCommand(TransactionManager.java:28
3)

 
org.ozoneDB.core.TransactionManager.handleCommand(TransactionManager.java:25
6)

 
org.ozoneDB.core.InvokeServer.handleClientEvent(InvokeServer.java:78)

 
org.ozoneDB.DxLib.net.DxMultiServerClient.run(DxMultiServerClient.java:44)

            java.lang.Thread.run(Thread.java:534)

 

Does anyone have any hints on that?

 

More information: working on WinXP, Tomcat 5.0.28, TM4J 0.9.8, Ozone 1.1

 

Thanks in advance,

Marcus


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