BatchUpdateException Problems

Question

I am trying to play around the batch update method provided in JAVA API 1.3. It works but not without errors. I keep on insert 5 records into my DB2 table by using back the same records. The result is, sometime my code works properly, but sometime it will give me a BatchUpdateException. And I don't know why this could be happened. Attached are the code snippet and also the error log.
Thanks for any advise and reply.
// Code Snippet
if (connection == null) connection = connectDB(); //open connection
if (stmt != null) stmt = null;
sqlQuery = "INSERT INTO FAVOURITE (STAFFID, NAME, ACCTNO) VALUES(?,?,?);
connection.setAutoCommit(false);
stmt = connection.prepareStatement(sqlQuery);
for (int j = 0; j < 5; j++) {
   stmt.setString(1, staffID[j]);
   stmt.setString(2, staffName[j]);
   stmt.setString(3, staffAcct[j]);
   stmt.addBatch();
int [] numUpdates = stmt.executeBatch();
connection.commit();
stmt.clearBatch();
// end code snippet
// Start error log
[11/1/04 22:18:41:086 MYT] 21ab3697 LocalTransact E WLTC0033E: Resource jdbc/dev rolled back in cleanup of unresolved LocalTransactionContainment.
[11/1/04 22:18:41:089 MYT] 21ab3697 LocalTransact E WLTC0032E: One or more resou
rces rolled back. An unresolved LocalTransactionContainment had an unresolved ac
tion of rollback.
[11/1/04 22:18:41:091 MYT] 21ab3697 WebAppTransac E SRVE0183E: LocalTransaction
rolled-back due to setRollbackOnly
[11/1/04 22:18:41:095 MYT] 21ab3697 WebGroup      E SRVE0026E: [Servlet Error]-[
LocalTransaction rolled-back due to setRollbackOnly]: com.ibm.ws.LocalTransactio
n.RolledbackException
        at com.ibm.ws.LocalTransaction.LocalTranCoordImpl.cleanup(LocalTranCoord
Impl.java(Compiled Code))
        at com.ibm.ws.webcontainer.webapp.WebAppTransactionCollaborator.postInvo
ke(WebAppTransactionCollaborator.java(Compiled Code))
        at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.dispatch(WebAp
pRequestDispatcher.java(Compiled Code))
        at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebApp
RequestDispatcher.java(Compiled Code))
        at com.ibm.ws.webcontainer.servlet.InvokerServlet.service(InvokerServlet
.java:255)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java(Compiled Code
        at com.ibm.ws.webcontainer.servlet.StrictServletInstance.doService(Stric
tServletInstance.java(Compiled Code))
        at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet._service(Stric
tLifecycleServlet.java(Compiled Code))
        at com.ibm.ws.webcontainer.servlet.IdleServletState.service(StrictLifecy
cleServlet.java(Compiled Code))
        at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet.service(Strict
LifecycleServlet.java(Inlined Compiled Code))
        at com.ibm.ws.webcontainer.servlet.ServletInstance.service(ServletInstan
ce.java(Compiled Code))
        at com.ibm.ws.webcontainer.servlet.ValidServletReferenceState.dispatch(V
alidServletReferenceState.java(Compiled Code))
        at com.ibm.ws.webcontainer.servlet.ServletInstanceReference.dispatch(Ser
vletInstanceReference.java(Inlined Compiled Code))
        at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.handleWebAppDi
spatch(WebAppRequestDispatcher.java(Compiled Code))
        at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.dispatch(WebAp
pRequestDispatcher.java(Compiled Code))
        at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebApp
RequestDispatcher.java(Compiled Code))
        at com.ibm.ws.webcontainer.srt.WebAppInvoker.doForward(WebAppInvoker.jav
a(Compiled Code))
        at com.ibm.ws.webcontainer.srt.WebAppInvoker.handleInvocationHook(WebApp
Invoker.java(Compiled Code))
        at com.ibm.ws.webcontainer.cache.invocation.CachedInvocation.handleInvoc
ation(CachedInvocation.java(Compiled Code))
        at com.ibm.ws.webcontainer.srp.ServletRequestProcessor.dispatchByURI(Ser
vletRequestProcessor.java(Compiled Code))
        at com.ibm.ws.webcontainer.oselistener.OSEListenerDispatcher.service(OSE
Listener.java(Compiled Code))
        at com.ibm.ws.webcontainer.http.HttpConnection.handleRequest(HttpConnect
ion.java(Compiled Code))
        at com.ibm.ws.http.HttpConnection.readAndHandleRequest(HttpConnection.ja
va(Compiled Code))
        at com.ibm.ws.http.HttpConnection.run(HttpConnection.java:449)
        at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java(Compiled Code))
//end error log

Answer 1

I would suggest that you google using the following string....
"An unresolved LocalTransactionContainment"