Masalah Master Detail Form Netbeans : Exception [TOPLINK-8034]

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gan suer, udah gak bisa lagi mecahin ni masalah, cari sana sini di google gak dapet juga...

keterangan masalahnya kayak gini gan:


Code:

[TopLink Info]: 2011.07.08 02:16:18.718--ServerSession(3840954)--TopLink, version: Oracle TopLink Essentials - 2.0.1 (Build b09d-fcs (12/06/2007))
[TopLink Info]: 2011.07.08 02:16:19.008--ServerSession(3840954)--file:/D:/KERJAAN/_Projek_Skripsi/Jhon%20Stok%20Kulit%20Ular/build/classes/-jhon_stok_kulitPU login successful
Exception in thread "AWT-EventQueue-0" java.lang.IllegalArgumentException: An exception occured while creating a query in EntityManager
at oracle.toplink.essentials.internal.ejb.cmp3.Entity ManagerImpl.createQuery(EntityManagerImpl.java:209 )
at jhon.stok.kulit.ular.FormPersediaan.initComponents (FormPersediaan.java:45)
at jhon.stok.kulit.ular.FormPersediaan.(FormPersediaa n.java:28)
at jhon.stok.kulit.ular.FormPersediaan$1.run(FormPers ediaan.java:316)
at java.awt.event.InvocationEvent.dispatch(Invocation Event.java:209)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.j ava:641)
at java.awt.EventQueue.access$000(EventQueue.java:84)
at java.awt.EventQueue$1.run(EventQueue.java:602)
at java.awt.EventQueue$1.run(EventQueue.java:600)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectio nPrivilege(AccessControlContext.java:87)
at java.awt.EventQueue.dispatchEvent(EventQueue.java: 611)
at java.awt.EventDispatchThread.pumpOneEventForFilter s(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForFilter(E ventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEventsForHierarch y(EventDispatchThread.java:174)
at java.awt.EventDispatchThread.pumpEvents(EventDispa tchThread.java:169)
at java.awt.EventDispatchThread.pumpEvents(EventDispa tchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThre ad.java:122)
Caused by: Exception [TOPLINK-8034] (Oracle TopLink Essentials - 2.0.1 (Build b09d-fcs (12/06/2007))): oracle.toplink.essentials.exceptions.EJBQLExceptio n
Exception Description: Error compiling the query [SELECT p FROM Persediaan p]. Unknown abstract schema type [Persediaan].
at oracle.toplink.essentials.exceptions.EJBQLExceptio n.unknownAbstractSchemaType(EJBQLException.java:49 4)
at oracle.toplink.essentials.internal.parsing.ParseTr eeContext.classForSchemaName(ParseTreeContext.java :163)
at oracle.toplink.essentials.internal.parsing.SelectN ode.getClassOfFirstVariable(SelectNode.java:366)
at oracle.toplink.essentials.internal.parsing.SelectN ode.getReferenceClass(SelectNode.java:354)
at oracle.toplink.essentials.internal.parsing.ParseTr ee.getReferenceClass(ParseTree.java:463)
at oracle.toplink.essentials.internal.parsing.ParseTr ee.adjustReferenceClassForQuery(ParseTree.java:103 )
at oracle.toplink.essentials.internal.parsing.EJBQLPa rseTree.populateReadQueryInternal(EJBQLParseTree.j ava:127)
at oracle.toplink.essentials.internal.parsing.EJBQLPa rseTree.populateQuery(EJBQLParseTree.java:108)
at oracle.toplink.essentials.internal.ejb.cmp3.base.E JBQueryImpl.buildEJBQLDatabaseQuery(EJBQueryImpl.j ava:219)
at oracle.toplink.essentials.internal.ejb.cmp3.base.E JBQueryImpl.buildEJBQLDatabaseQuery(EJBQueryImpl.j ava:189)
at oracle.toplink.essentials.internal.ejb.cmp3.base.E JBQueryImpl.buildEJBQLDatabaseQuery(EJBQueryImpl.j ava:153)
at oracle.toplink.essentials.internal.ejb.cmp3.base.E JBQueryImpl.(EJBQueryImpl.java:114)
at oracle.toplink.essentials.internal.ejb.cmp3.base.E JBQueryImpl.(EJBQueryImpl.java:99)
at oracle.toplink.essentials.internal.ejb.cmp3.EJBQue ryImpl.(EJBQueryImpl.java:86)
at oracle.toplink.essentials.internal.ejb.cmp3.Entity ManagerImpl.createQuery(EntityManagerImpl.java:204 )
... 17 more
BUILD SUCCESSFUL (total time: 2 seconds)



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