Java.sql.SQLException: Statement cancelled, probably by transaction timing

Question

Hi all,
I have a problem with transaction handling over 2 applications. I have 2 EAR files (*A.ear* and B.ear) which are deployed on a WLS 12.1. The WLS contains a XA datasource which is connected to a Oracle XE database. Both applications are using the same datasource. The datasource is configured to use the driver oracle.jdbc.xa.client.OracleXADataSource.
EAR A contains a Remote EJB which is is calling a local EJB. The local EJB calls a Remote EJB from EAR B.
Here is an example how the code looks like:
@Remote
@Stateless(mappedName = "AnyRemote", name = "AnyRemote")
public class AnyRemoteBean implements AnyRemote {
    @EJB
    private AnyLocal anyLocal;
    @Override
    public void doIt() {
        anyLocal.doSomething();
@Local
@Stateless(mappedName = "AnyLocal", name = "AnyLocal")
public class AnyLocalBean implements AnyLocal {
    @PersistenceContext(unitName = "A")
    private EntityManager entityManager;
    @EJB(mappedName = "AnyCompositeService")
    private AnyCompositeService anyCompositeService;
    @Override
    @TransactionAttribute(TransactionAttributeType.REQUIRES_NEW)
    public boolean doSomething() {
            try {
                 // do some stuff and save to database within another local EJB
                anyCompositeService.doSomethingOnEAR_B();
                return true;
            } catch (final AnyException e) {
                LOGGER.error("doSomething failed", e);
                return false;
    @Override
    @TransactionAttribute(TransactionAttributeType.REQUIRES_NEW)
    public boolean stayOnEar_A() {
            // do some stuff and save to database within another local EJB
            return true;
}AnyCompositeService located in EAR B looks like this:
@Remote
@Stateless(mappedName = "AnyCompositeService ", name = "AnyCompositeService ")
public class AnyCompositeServiceBean implements AnyCompositeService {
    @Override
    public boolean doSomethingOnEAR_B() throws AnyException {
        // do some calls to some local EJBs and some other remote EJBs and save something to database
        return true;
}In this process of EAR B I'm using the entitiy manager:
    @PersistenceContext(unitName = "B")
    private EntityManager entityManager;persistence.xml for EAR A looks like this
    <persistence-unit name="A" transaction-type="JTA">
        <provider>org.hibernate.ejb.HibernatePersistence</provider>
        <jta-data-source>MyDatasource</jta-data-source>
       <!-- some entities -->
        <properties>
            <property name="hibernate.transaction.jta.platform"
                value="org.hibernate.service.jta.platform.internal.WeblogicJtaPlatform" />
            <property name="hibernate.max_fetch_depth" value="3" />
            <property name="hibernate.connection.characterEncoding" value="UTF-8" />
            <property name="hibernate.connection.charSet" value="UTF-8" />
            <property name="hibernate.connection.useUnicode" value="true" />
            <property name="hibernate.default_batch_fetch_size" value="20" />
        </properties>
    </persistence-unit>
</persistence>persistence.xml for EAR B looks like this
    <persistence-unit name="B" transaction-type="JTA">
        <provider>org.hibernate.ejb.HibernatePersistence</provider>
        <jta-data-source>MyDatasource</jta-data-source>
       <!-- some entities -->
        <properties>
            <property name="hibernate.transaction.jta.platform"
                value="org.hibernate.service.jta.platform.internal.WeblogicJtaPlatform" />
            <property name="hibernate.max_fetch_depth" value="3" />
            <property name="hibernate.connection.characterEncoding" value="UTF-8" />
            <property name="hibernate.connection.charSet" value="UTF-8" />
            <property name="hibernate.connection.useUnicode" value="true" />
            <property name="hibernate.default_batch_fetch_size" value="20" />
        </properties>
    </persistence-unit>
</persistence>As you can see the method doSomething() defines the transaction attribute TransactionAttributeType.REQUIRES_NEW.
When I execute AnyRemote.doIt() I get the following exception:
Caused By: java.sql.SQLException: Statement cancelled, probably by transaction timing out
     at weblogic.jdbc.wrapper.Statement.postInvocationHandler(Statement.java:69)
     at weblogic.jdbc.wrapper.PreparedStatement_oracle_jdbc_driver_OraclePreparedStatementWrapper.clearBatch(Unknown Source)
     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.hibernate.engine.jdbc.internal.proxy.AbstractStatementProxyHandler.continueInvocation(AbstractStatementProxyHandler.java:122)
     at org.hibernate.engine.jdbc.internal.proxy.AbstractProxyHandler.invoke(AbstractProxyHandler.java:81)
     at $Proxy452.clearBatch(Unknown Source)
     at org.hibernate.engine.jdbc.batch.internal.AbstractBatchImpl.releaseStatements(AbstractBatchImpl.java:163)
     at org.hibernate.engine.jdbc.batch.internal.AbstractBatchImpl.release(AbstractBatchImpl.java:197)
     at org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl.close(JdbcCoordinatorImpl.java:139)
     at org.hibernate.engine.transaction.internal.TransactionCoordinatorImpl.close(TransactionCoordinatorImpl.java:276)
     at org.hibernate.internal.SessionImpl.close(SessionImpl.java:349)
     at org.hibernate.ejb.EntityManagerImpl.close(EntityManagerImpl.java:137)
     at weblogic.persistence.TransactionalEntityManagerProxyImpl.close(TransactionalEntityManagerProxyImpl.java:117)
     at weblogic.persistence.BasePersistenceContextProxyImpl$PersistenceContextCloser.afterCompletion(BasePersistenceContextProxyImpl.java:213)
     at weblogic.transaction.internal.ServerSCInfo.doAfterCompletion(ServerSCInfo.java:1068)
     at weblogic.transaction.internal.ServerSCInfo.callAfterCompletions(ServerSCInfo.java:1012)
     at weblogic.transaction.internal.ServerTransactionImpl.callAfterCompletions(ServerTransactionImpl.java:3074)
     at weblogic.transaction.internal.ServerTransactionImpl.afterRolledBackStateHousekeeping(ServerTransactionImpl.java:2954)
     at weblogic.transaction.internal.ServerTransactionImpl.setRolledBack(ServerTransactionImpl.java:2930)
     at weblogic.transaction.internal.ServerTransactionImpl.globalRetryRollback(ServerTransactionImpl.java:3172)
     at weblogic.transaction.internal.ServerTransactionImpl.globalRollback(ServerTransactionImpl.java:2920)
     at weblogic.transaction.internal.ServerTransactionImpl.internalCommit(ServerTransactionImpl.java:374)
     at weblogic.transaction.internal.ServerTransactionImpl.commit(ServerTransactionImpl.java:268)
     at weblogic.ejb.container.internal.BaseLocalObject.postInvoke1(BaseLocalObject.java:332)
     at weblogic.ejb.container.internal.BaseLocalObject.__WL_postInvokeTxRetry(BaseLocalObject.java:202)
     at weblogic.ejb.container.internal.SessionLocalMethodInvoker.invoke(SessionLocalMethodInvoker.java:44)As long as the process only calls EJBs from EAR A only there is no issue. But if the process calls the method doSomethingOnEAR_B() on EAR B the call fails with above exception. If the process throws AnyException the rollback takes place as expected for transaction in EAR B and EAR A.
Does anybody know what is the issue here? Is there any configuration I have overseen?

Answer 1

That is a WLS internal message. The statement did get cancelled,
probably as a part of the process of rolling back the transaction it
was involved in. If you don't find your core problem, open an
Oracle support SR, and we could help debug this further.