Hi! I'm trying to create a schedule service at jboss 4.2.1 but I'm not sure what to do. I need a service to be started by the application server that runs every half an hour. I wrote a class but the problem is when I start jboss, I have the following error message: anonymous wrote : 10:11:11,280 ERROR [TimerServiceImpl] Cannot create txtimer | java.lang.IllegalStateException: Unable to persist timer anonymous wrote : Caused by: java.sql.SQLException: Unique constraint violation: in statement [insert into TIMERS (TIMERID,TARGETID,INITIALDATE,TIMERINTERVAL,INSTANCEPK,INFO) values (?,?,?,?,?,?)] Here is the class: | @Service | @Management(AtividadeTimerServiceManagement.class) | public class AtividadeTimerServiceBean implements AtividadeTimerServiceLocal, | AtividadeTimerServiceManagement { | | @Resource | private TimerService timerService; | | public void create() throws Exception { | this.timerService.createTimer(15*60*1000, 5*60*1000, null); | } | | public void destroy() { | | } | | public void start() throws Exception { | } | | public void stop() { | } | | @Timeout | public void monitorPeriodoCadastral(Timer timer) { | log.info("monitorPeriodoCadastral..."); | } | } | Does anybody have any idea why am I getting this error message? Thanks! View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4127802#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...