The root cause of this issue is a "Concurrency error";
e.g.:
ERROR [
org.jboss.as.ejb3.invocation] (Worker_actionq#ActionQ1#WPDS_1) JBAS014134:
EJB Invocation failed on component WorkItemUpdatePvt_EJB for method public abstract com.workpoint.common.data.WorkItemQueryData
com.workpoint.server.pojo.WorkItemUpdatePvt.changeState(java.lang.String,java.lang.String,com.workpoint.common.data.WorkItemQueryData,short,int,int,java.lang.String,java.lang.String) throws com.workpoint.server.ejb.WorkPointEJBException:
com.workpoint.server.ejb.WorkPointEJBException: Concurrency error. Another user has updated this Job object since you selected it. Please re-select Job 51:WPDS and attempt this operation again.
at com.workpoint.server.pojo.GenericServerBean.createException(Unknown Source) [iam_im_wpServer.jar:]
at com.workpoint.server.pojo.GenericServerBean.createException(Unknown Source) [iam_im_wpServer.jar:]
at com.workpoint.server.pojo.WorkItemUpdatePvtBean.changeState(Unknown Source) [iam_im_wpServer.jar:]