ExecuteInsert of OracleSequenceCommand not called

We tried to use the defined sequence to autogenerate new keys for CMP beans, however we get the following in the log:
2006-04-13 11:56:35,367 DEBUG org.jboss.ejb.plugins.cmp.jdbc.JDBCEJBQLQuery.Hugo#findAll Executing SQL: SELECT DISTINCT t0_o.hugopkfield FROM HUGO t0_o
2006-04-13 12:00:36,334 DEBUG [org.jboss.ejb.plugins.cmp.jdbc.keygen.JDBCOracleSequenceCreateCommand.Hugo] Executing SQL:

{call INSERT INTO HUGO (hugopkfield, PRIORITY) VALUES (REPORT_REPORTID_SEQ.NEXTVAL, ?) RETURNING hugopkfield INTO ? }

2006-04-13 12:02:48,314 DEBUG [org.jboss.resource.connectionmanager.IdleRemover] run: IdleRemover notifying pools, interval: 450000
2006-04-13 12:03:46,768 WARN [org.jboss.tm.TransactionImpl] Transaction TransactionImpl:XidImpl[FormatId=257, GlobalId=office-hugo/17, BranchQual=, localId=17] timed out. status=STATUS_ACTIVE
2006-04-13 12:08:24,457 ERROR [org.jboss.ejb.plugins.cmp.jdbc.keygen.JDBCOracleSequenceCreateCommand.Hugo] Could not create entity
java.sql.SQLException: Missing IN or OUT parameter at index:: 2
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:125)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:162)
at oracle.jdbc.driver.OraclePreparedStatement.processCompletedBindRow(OraclePreparedStatement.java:1536)
at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:2900)
at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:2977)
at oracle.jdbc.driver.OracleCallableStatement.executeUpdate(OracleCallableStatement.java:4141)
at com.p6spy.engine.logging.P6LogCallableStatement.executeUpdate(P6LogCallableStatement.java:155)
at org.jboss.resource.adapter.jdbc.WrappedPreparedStatement.executeUpdate(WrappedPreparedStatement.java:227)
at org.jboss.ejb.plugins.cmp.jdbc.JDBCIdentityColumnCreateCommand.executeInsert(JDBCIdentityColumnCreateCommand.java:51)
at org.jboss.ejb.plugins.cmp.jdbc.JDBCAbstractCreateCommand.performInsert(JDBCAbstractCreateCommand.java:308)
at org.jboss.ejb.plugins.cmp.jdbc.JDBCAbstractCreateCommand.execute(JDBCAbstractCreateCommand.java:138)
at org.jboss.ejb.plugins.cmp.jdbc.JDBCStoreManager.createEntity(JDBCStoreManager.java:572)
at org.jboss.ejb.plugins.CMPPersistenceManager.createEntity(CMPPersistenceManager.java:222)
at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.createEntity(CachedConnectionInterceptor.java:219)
at org.jboss.ejb.EntityContainer.createHome(EntityContainer.java:766)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.jboss.invocation.Invocation.performCall(Invocation.java:345)
at org.jboss.ejb.EntityContainer$ContainerInterceptor.invokeHome(EntityContainer.java:1113)
at org.jboss.ejb.plugins.AbstractInterceptor.invokeHome(AbstractInterceptor.java:90)
at org.jboss.ejb.plugins.EntitySynchronizationInterceptor.invokeHome(EntitySynchronizationInterceptor.java:189)
at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invokeHome(CachedConnectionInterceptor.java:180)
at org.jboss.ejb.plugins.AbstractInterceptor.invokeHome(AbstractInterceptor.java:90)
at org.jboss.ejb.plugins.EntityInstanceInterceptor.invokeHome(EntityInstanceInterceptor.java:119)
at org.jboss.ejb.plugins.EntityLockInterceptor.invokeHome(EntityLockInterceptor.java:61)
at org.jboss.ejb.plugins.EntityCreationInterceptor.invokeHome(EntityCreationInterceptor.java:28)
at org.jboss.ejb.plugins.CallValidationInterceptor.invokeHome(CallValidationInterceptor.java:41)
at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:110)
at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:389)
at org.jboss.ejb.plugins.TxInterceptorCMT.invokeHome(TxInterceptorCMT.java:146)
at org.jboss.ejb.plugins.SecurityInterceptor.invokeHome(SecurityInterceptor.java:130)
at org.jboss.ejb.plugins.LogInterceptor.invokeHome(LogInterceptor.java:121)
at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invokeHome(ProxyFactoryFinderInterceptor.java:93)
at org.jboss.ejb.EntityContainer.internalInvokeHome(EntityContainer.java:508)
at org.jboss.ejb.Container.invoke(Container.java:894)

After tracing into JBOSS it appears that the class JDBCAbstractCreateCommand calls "int rowsAffected = executeInsert(index, ps, ctx);" on line 308 whcih has 3 arguments.
However we expected it should call "protected int executeInsert(PreparedStatement ps, EntityEnterpriseContext ctx) throws SQLException" in line 87 of class JDBCOracleSequenceCreateCommand, which needs 2 arguments.
Because of this the executeInsert method of the abstract class is used instead, which fails to register the OUT parameter. resulting in the error in the log above.

Am I doing something wrong or is this somethig that needs to be resolved?

Kind Regards,

Hugo

p.s. this is my jbosscmp-jdbc.xml:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE jbosscmp-jdbc PUBLIC "-//JBoss//DTD JBOSSCMP-JDBC 4.0//EN" "http://www.jboss.org/j2ee/dtd/jbosscmp-jdbc_4_0.dtd">

<jbosscmp-jdbc>
<defaults>
<datasource>java:/jdbc/ctb</datasource>
<datasource-mapping>Oracle9i</datasource-mapping>
<create-table>true</create-table>
</defaults>

<enterprise-beans>

<!--
To add beans that you have deployment descriptor info for, add
a file to your XDoclet merge directory called jbosscmp-jdbc-beans.xml
that contains the <entity></entity> markup for those beans.
-->

<entity>
<ejb-name>Hugo</ejb-name>
<create-table>true</create-table>
<pk-constraint>false</pk-constraint>

<cmp-field>
<field-name>hugopkfield</field-name>

</cmp-field>
<cmp-field>
<field-name>priority</field-name>
<column-name>PRIORITY</column-name>

<jdbc-type>DOUBLE</jdbc-type>
<sql-type>NUMBER(15,8)</sql-type>

</cmp-field>

<unknown-pk>
<unknown-pk-class>java.lang.Integer</unknown-pk-class>
<field-name>hugopkfield</field-name>
<column-name>HUGOPKFIELD</column-name>
<jdbc-type>INTEGER</jdbc-type>
<sql-type>NUMBER(10)</sql-type>
<auto-increment/>
</unknown-pk>
<entity-command name="oracle-sequence" class="org.jboss.ejb.plugins.cmp.jdbc.keygen.JDBCOracleSequenceCreateCommand">
<attribute name="sequence_name">REPORT_REPORTID_SEQ</attribute>
</entity-command>
<!-- jboss 3.2 features -->
<!-- optimistic locking does not express the exclusions needed -->
</entity>

</enterprise-beans>

</jbosscmp-jdbc>