PartitionPlan.getThreads() returning zero value causes batch job not be started ------------------------------------------------------------------------------- Key: WFLY-3808 URL: https://issues.jboss.org/browse/WFLY-3808 Project: WildFly Issue Type: Bug Components: Batch Affects Versions: 8.1.0.Final Environment: Windows 7 Home Premium Service Pack 1 64-bit + JDK8u11 + WildFly 8.1.0 Final Reporter: Ari Silvan Assignee: Enrique González Martínez Fix For: 9.0.0.Alpha1 If you define a batch job to be divided to multiple partitions and write a PartitionMapper returning a PartitionPlanImpl object but don't override getThreads method, which means getThreads returns zero meaning thread count should be equal to partition count, but the batch job doesn't start. See http://docs.oracle.com/javaee/7/api/javax/batch/api/partition/PartitionPl... In GlassFish this works as expected: if getThreads is not overridden (thus returning zero), batch job is started in as many threads as there are partitions. See steps to reproduce for further details.