OC4J 904 and Unicode(AL16UTF16) in NVARCHAR2 column

I have:
OC4J 904 standalone runs on Windows2000 AdvancedServer.
Oracle 9i
JDBC thin driver shipped with OC4J
NLS_NCHAR_CHARSET = AL16UTF16
(NLS_CHARACTERSET = VN8VN3)
I have a table with a NVARCHAR2 column. I created a CMP EJB from the table but I can't use the EJB to retreive data from Database. I was success in using Oracle JDBC connection to connect manually to database and save/retreive Unicode data.
I read somewhere that EJB use thin driver, so the getter/setter of CMP-Fields should work normally.
I think that may be the problems is the function OraclePreparedStatement.setFormOfUse(1,OraclePreparedStatement.FORM_NCHAR);
was not called in the EJB Contenner or things like that - so it's a bug of OC4J, right?.
This is the Exception I received on the browser.
javax.ejb.NoSuchObjectLocalException: ? ?ÃY CÃ CH? HOA CÃ D?U!!!!!
     at TestLocal_EntityBeanWrapper0.reActivateNew(TestLocal_EntityBeanWrapper0.java:1668)
     at TestLocal_EntityBeanWrapper0.reActivateNewLocal(TestLocal_EntityBeanWrapper0.java:1636)
     at TestLocal_EntityBeanWrapper0.getUnicode(TestLocal_EntityBeanWrapper0.java:108)
     at test.showparam._jspService(_showparam.java:100)
     [SRC:/test/showparam.jsp:65]
     at com.orionserver[Oracle9iAS (9.0.4.0.0) Containers for J2EE].http.OrionHttpJspPage.service(OrionHttpJspPage.java:56)
     at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:348)
     at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:498)
     at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:402)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at com.evermind[Oracle9iAS (9.0.4.0.0) Containers for J2EE].server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:65)
     at oracle.security.jazn.oc4j.JAZNFilter.doFilter(JAZNFilter.java:293)
     at com.evermind[Oracle9iAS (9.0.4.0.0) Containers for J2EE].server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:602)
     at com.evermind[Oracle9iAS (9.0.4.0.0) Containers for J2EE].server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:308)
     at com.evermind[Oracle9iAS (9.0.4.0.0) Containers for J2EE].server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:779)
     at com.evermind[Oracle9iAS (9.0.4.0.0) Containers for J2EE].server.http.HttpRequestHandler.run(HttpRequestHandler.java:264)
     at com.evermind[Oracle9iAS (9.0.4.0.0) Containers for J2EE].server.http.HttpRequestHandler.run(HttpRequestHandler.java:107)
     at com.evermind[Oracle9iAS (9.0.4.0.0) Containers for J2EE].util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:186)
     at java.lang.Thread.run(Thread.java:536)
Can anybody help or give me some information or workaround?
Thank you very much.

Hi Nghia,
Can anybody help or give me some information or
workaround? I suggest using BMP and a non-emulated data source. More details are available in the documentation which can be downloaded from here:
http://technet.oracle.com/tech/java/oc4j/904/documentation_preview.html
Good Luck,
Avi.

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Message was edited by:
user610168

Hi,
I use version 10.2.0.1 version of ojdbc with an Oracle9i database and get ORA-1461 (can bind a LONG value only for insert into a LONG column) when updating multiple NVARCHAR2 columns in the same table.
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Message was edited by:
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