IllegalArgumentException on error path in DispatcherThread ---------------------------------------------------------- Key: JBPM-2930 URL: https://jira.jboss.org/browse/JBPM-2930 Project: jBPM Issue Type: Bug Security Level: Public (Everyone can see) Affects Versions: jBPM 4.4 Environment: JBPM 4.4 upgraded from 4.3, JDK 1.6u21. Reporter: Per Christian Henden DispatcherThread waits before retrying to execute a Job when there is an error. If there are multiple failures in a row, the wait period is increased in the following manner: int currentIdleInterval = jobExecutor.getIdleMillis(); //Typically a few seconds while(isActive) { .... catch (Exception e) { ... semaphore.wait(currentIdleInterval); ... currentIdleInterval = currentIdleInterval * 2; ... } } In other words, currentIdleInterval grows without bounds. Eventually the integer currentIdleInterval will overflow and semaphore.wait() will throw java.lang.IllegalArgumentException: timeout value is negative, resulting in a crash. In my case an error occurs because there are timers that refer to inactive executions (because timers that have not fired are not deleted when a subprocess ends in JBPM 4.3). This has left me with some 340 rows in JBPM4_JOB that refers to a non-existing execution. Another aspect of this problem is that the retry-wait can grow to unreasonably large values, for example multiple days, and if my calculations are correct, multiple years. A simple fix is to introduce an upper bound of for example 256 * jobExecutor.getIdleMillis(), and not increase currentIdleInterval above that. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira