Hi
Sorry if this has been discussed previously.
We are using some Message Driven Beans that need direct access to DB (for mostly
reading).
May be we are doing something wrong... Please help!!!
we acquire the database connection through JNDI
DataSource ds = ctx.lookup("java:/DefaultDS");
Connection con = ds.getConnection();
/// use it
con.close();
the close() method SOMETIMES throws and exception:
java.lang.RuntimeException: Unable to deregister with TransactionManager:
java.lang.IllegalArgumentException: xaRes not enlisted
at org.jboss.pool.jdbc.xa.XAConnectionFactory$2.closeConnection(Unknown Source)
at org.jboss.pool.jdbc.xa.XAConnectionFactory$2.connectionClosed(Unknown
Source)
at
org.jboss.pool.jdbc.xa.wrapper.XAConnectionImpl.clientConnectionClosed(Unknown Source)
at org.jboss.pool.jdbc.xa.wrapper.XAClientConnection.close(Unknown Source)
at
com.premier.cims.sbl.util.ServiceLocator.releaseReusableConnection(ServiceLocator.java:249)
at com.premier.cims.sbl.persist.access.GetContract.get(GetContract.java:115)
at
com.premier.cims.sbl.persist.PersistBean.getEntityByKey(PersistBean.java:143)
at java.lang.reflect.Method.invoke(Native Method)
at
org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invoke(StatelessSessionContainer.java:542)
at
org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invoke(StatelessSessionInstanceInterceptor.java:82)
at org.jboss.ejb.plugins.TxInterceptorCMT.invokeNext(TxInterceptorCMT.java:138)
at
org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:347)
at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:100)
at
org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:127)
at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:170)
at
org.jboss.ejb.StatelessSessionContainer.invoke(StatelessSessionContainer.java:286)
at
org.jboss.ejb.plugins.local.BaseLocalContainerInvoker.invoke(BaseLocalContainerInvoker.java:297)
at
org.jboss.ejb.plugins.local.BaseLocalContainerInvoker$StatelessSessionProxy.invoke(BaseLocalContainerInvoker.java:507)
at $Proxy18.getEntityByKey(Unknown Source)
at
com.premier.cims.sbl.mgr.FinderSessionBean.findByKey(FinderSessionBean.java:138)
etc etc
Could anyone tell us how to acquire a database connection?
Can it be cached? Can the datasource be cached?
many thanks
Benoit.
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