Hi community, i have started using jboss jbpm 4.2 and managed to integrate it with spring. i am able to deploy the sample process defintion and able to getProcessInstance , but when i query for processInstance.getId() it is coming as null. i had taken a look at source code and found out that id generation is done within Executionimpl class: protected void composeIds() { this.id = IdComposer.getIdComposer().createId(processDefinition, parent, this); } and id composer is Databaseid composer or memoryIdComposer. and default id generator implementation returns null for all process instances. i also see <id-generator> in jbpm.cfg.xml and thinks that its value must be overridden somehow. database used is mysql. thanks mayank View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4264551#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...