I need to create an EJB timer (using @Schedule), but read that this is not supported in the Websphere Liberty profile? According to a previously posted question about StackOverflow, it was not supported as of 08/2013:
Java EE-Timer / @ Schedule in Websphere Liberty profile
Currently, when I try to use the @Schedule annotation, I get the following exception:
[ERROR ] CWWKZ0004E: An exception occurred while starting the application
<EAR>. The exception message was: com.ibm.ws.container.service.state.StateChangeException: com.ibm.ws.exception.RuntimeError: java.lang.IllegalStateException: The ejbPersistentTimer feature is enabled, but the defaultEJBPersistentTimerExecutor persistent executor cannot be resolved. The most likely cause is that the DefaultDataSource datasource has not been configured. Persistent EJB timers require a datasource configuration for persistence.
The problem is that I have a default data source installed. Here is the EJB code - it is very simple because I was just trying to check the timer functions:
import javax.ejb.Schedule;
import javax.ejb.Stateless;
@Stateless
public class TimerBean {
@Schedule(second="*/10", persistent=false)
public void doSomething() {
System.out.println("Hello World!");
}
}
Update:
I changed my dataSource identifier to "DefaultDataSource" and now I have other exceptions in my console when starting the server:
[ERROR ] WTRN0078E: An attempt by the transaction manager to call start on a transactional resource has resulted in an error. The error code was XAER_RMERR. The exception stack trace follows: javax.transaction.xa.XAException: com.microsoft.sqlserver.jdbc.SQLServerException: Could not find stored procedure 'master..xp_sqljdbc_xa_start'.
at com.microsoft.sqlserver.jdbc.SQLServerXAResource.DTC_XA_Interface(SQLServerXAResource.java:647)
at com.microsoft.sqlserver.jdbc.SQLServerXAResource.start(SQLServerXAResource.java:679)
at com.ibm.ws.rsadapter.spi.WSRdbXaResourceImpl.start(WSRdbXaResourceImpl.java:1189)
at [internal classes]
[ERROR ] J2CA0030E: Method enlist caught javax.transaction.SystemException: XAResource start association error:XAER_RMERR
at com.ibm.tx.jta.impl.RegisteredResources.startRes(RegisteredResources.java:1048)
at [internal classes]
Caused by: javax.transaction.xa.XAException: com.microsoft.sqlserver.jdbc.SQLServerException: Could not find stored procedure 'master..xp_sqljdbc_xa_start'.
at com.microsoft.sqlserver.jdbc.SQLServerXAResource.DTC_XA_Interface(SQLServerXAResource.java:647)
at com.microsoft.sqlserver.jdbc.SQLServerXAResource.start(SQLServerXAResource.java:679)
, SQL- , , ?