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https://issues.apache.org/jira/browse/OPENJPA-1853?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12924317#action_12924317
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Jeremy Bauer commented on OPENJPA-1853:
---------------------------------------

Hi Andreas.  I've been looking at what looks to be the same issue - identity 
column id, iSeries toolbox driver with 2.1.0 snapshot, but haven't yet been 
able to reproduce it outside of an app server environment.  It looks to be 
caused by some odd sql getting generated.  If you could post a simple JSE test 
that would really help things along.

> iSeries DB2 problem with using 
> @GeneratedValue(strategy=GenerationType.IDENTITY)
> --------------------------------------------------------------------------------
>
>                 Key: OPENJPA-1853
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-1853
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: sql
>    Affects Versions: 2.0.0, 2.0.1
>         Environment: DB2 on IBM iSeries V5R4, jt400.jar (JTOpen)
>            Reporter: Andreas Tomik
>            Assignee: Jeremy Bauer
>            Priority: Critical
>
> I get the following error when I try to insert new row to a table that has a 
> "generated always Identity" Column.
> Exception in thread "main" <openjpa-2.0.1-r422266:989424 fatal store error> 
> org.apache.openjpa.persistence.RollbackException: An error occurred 
> attempting to invoke JDBC 3 method.  Your driver or database may not support 
> JDBC 3 features.
>       at 
> org.apache.openjpa.persistence.EntityManagerImpl.commit(EntityManagerImpl.java:584)
>       at 
> de.meyerwerft.qs.laborpruef.laborprobe.dbaccess.LaborprobeBean.crtTest(LaborprobeBean.java:38)
>       at de.meyerwerft.test.JSE_Client.jlm_run(JSE_Client.java:35)
>       at de.meyerwerft.test.JSE_Client.<init>(JSE_Client.java:10)
>       at de.meyerwerft.test.JSE_Client.main(JSE_Client.java:17)
> Caused by: <openjpa-2.0.1-r422266:989424 nonfatal general error> 
> org.apache.openjpa.persistence.PersistenceException: An error occurred 
> attempting to invoke JDBC 3 method.  Your driver or database may not support 
> JDBC 3 features.
>       at 
> org.apache.openjpa.kernel.BrokerImpl.beforeCompletion(BrokerImpl.java:1963)
>       at 
> org.apache.openjpa.kernel.LocalManagedRuntime.commit(LocalManagedRuntime.java:81)
>       at org.apache.openjpa.kernel.BrokerImpl.commit(BrokerImpl.java:1479)
>       at 
> org.apache.openjpa.kernel.DelegatingBroker.commit(DelegatingBroker.java:925)
>       at 
> org.apache.openjpa.persistence.EntityManagerImpl.commit(EntityManagerImpl.java:560)
>       ... 4 more
> Caused by: org.apache.commons.lang.exception.NestableRuntimeException: An 
> error occurred attempting to invoke JDBC 3 method.  Your driver or database 
> may not support JDBC 3 features.
>       at 
> org.apache.openjpa.lib.jdbc.DelegatingConnection.invokeJDBC3(DelegatingConnection.java:597)
>       at 
> org.apache.openjpa.lib.jdbc.DelegatingConnection.prepareStatement(DelegatingConnection.java:577)
>       at 
> org.apache.openjpa.lib.jdbc.LoggingConnectionDecorator$LoggingConnection.prepareStatement(LoggingConnectionDecorator.java:571)
>       at 
> org.apache.openjpa.lib.jdbc.DelegatingConnection.prepareStatement(DelegatingConnection.java:571)
>       at 
> org.apache.openjpa.lib.jdbc.DelegatingConnection.prepareStatement(DelegatingConnection.java:571)
>       at 
> org.apache.openjpa.lib.jdbc.DelegatingConnection.prepareStatement(DelegatingConnection.java:563)
>       at 
> org.apache.openjpa.jdbc.kernel.PreparedStatementManagerImpl.prepareStatement(PreparedStatementManagerImpl.java:287)
>       at 
> org.apache.openjpa.jdbc.kernel.PreparedStatementManagerImpl.flushAndUpdate(PreparedStatementManagerImpl.java:112)
>       at 
> org.apache.openjpa.jdbc.kernel.BatchingPreparedStatementManagerImpl.flushAndUpdate(BatchingPreparedStatementManagerImpl.java:81)
>       at 
> org.apache.openjpa.jdbc.kernel.PreparedStatementManagerImpl.flushInternal(PreparedStatementManagerImpl.java:99)
>       at 
> org.apache.openjpa.jdbc.kernel.PreparedStatementManagerImpl.flush(PreparedStatementManagerImpl.java:87)
>       at 
> org.apache.openjpa.jdbc.kernel.ConstraintUpdateManager.flush(ConstraintUpdateManager.java:550)
>       at 
> org.apache.openjpa.jdbc.kernel.ConstraintUpdateManager.flush(ConstraintUpdateManager.java:106)
>       at 
> org.apache.openjpa.jdbc.kernel.BatchingConstraintUpdateManager.flush(BatchingConstraintUpdateManager.java:59)
>       at 
> org.apache.openjpa.jdbc.kernel.AbstractUpdateManager.flush(AbstractUpdateManager.java:103)
>       at 
> org.apache.openjpa.jdbc.kernel.AbstractUpdateManager.flush(AbstractUpdateManager.java:76)
>       at 
> org.apache.openjpa.jdbc.kernel.JDBCStoreManager.flush(JDBCStoreManager.java:731)
>       at 
> org.apache.openjpa.kernel.DelegatingStoreManager.flush(DelegatingStoreManager.java:131)
>       at org.apache.openjpa.kernel.BrokerImpl.flush(BrokerImpl.java:2139)
>       at org.apache.openjpa.kernel.BrokerImpl.flushSafe(BrokerImpl.java:2037)
>       at 
> org.apache.openjpa.kernel.BrokerImpl.beforeCompletion(BrokerImpl.java:1955)
>       ... 8 more
> Caused by: java.lang.reflect.InvocationTargetException
>       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>       at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>       at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>       at java.lang.reflect.Method.invoke(Method.java:597)
>       at 
> org.apache.openjpa.lib.jdbc.DelegatingConnection.invokeJDBC3(DelegatingConnection.java:593)
>       ... 28 more
> Caused by: java.sql.SQLException: The driver does not support this function.
>       at com.ibm.as400.access.JDError.throwSQLException(JDError.java:415)
>       at 
> com.ibm.as400.access.AS400JDBCConnection.prepareStatement(AS400JDBCConnection.java:2210)
>       ... 33 more
> I have the following in persistence.xml
> ...
> <property name="openjpa.jdbc.DBDictionary" value="db2"/> 
> <property name="openjpa.ConnectionDriverName" 
> value="com.ibm.as400.access.AS400JDBCDriver"/>
> <property name="openjpa.ConnectionURL" 
> value="jdbc:as400://myserver/myschema"/>
> ...
> In Version 1.2.3 this function works fine.
> Thank you,
> Andreas Tomik

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