[rules-users] JBPM : How to Listen Once ResourceChangeScanner Modifies the package after Changes

Hi, I want to upgrade my process instances using WorkflowProcessInstanceUpgrader. To trigger the upgrade after any change I wanted to listen for changes completed by ResourceChangeScanner. To listen the completion of changes I was looking to configure KnowledgeBaseEventListener. I have drools-spring-integration in place which uses drools-spring.xsd to configure beans and event listeners. I am getting KBase and Ksession from spring. I was trying to register my KnowledgeBaseEventListener in my spring configurations. But, The issue is that drools-spring.xsd only registers 3 kind of listeners 1. ProcessEventListener 2. AgendaEventListener 3. WorkingMemoryEventListener Solution Required : 1. I need to know how to configure the KnowledgeBaseEventListener in my spring configurations ? Example for ksession we have following config to register listeners. <drools:ksession id="knowledgeSession" type="stateful" kbase="knowledgeBase"> <drools:agendaEventListener ref="agendaEventListener"/> <drools:workingMemoryEventListener ref="wmEventListener"/> </drools:ksession> 2. Is this the best place to trigger a batch process upgrade ? From within the KBaseEventListener ? 3. Shall I add KBaseEventListener using knowledgebase.addEventListener() ? Environment 1. Drools-5.5.0.Final a. Guvnor b. Jbpm