David Harris [https://community.jboss.org/people/dmwpepper] created the discussion "Drools XML error when passing process variables to work item" To view the discussion, visit: https://community.jboss.org/message/811284#811284 -------------------------------------------------------------- I've been reading through "Section 7.2.3, Using your new work item in your processes"  to see how to pass process variables to a work item.  Even though the values of each process variable are getting passed each work item, I'm getting the following XML error in the Eclipse console: | 1 | 02/05 11:43:16,406[main] ERROR drools.xml.ExtensibleXmlParser.error  - (null: 40, 62): cvc-id.2: There are multiple occurrences of ID value '_4_Source_IPInput'. | | 4 | 02/05 11:43:16,409[main] ERROR drools.xml.ExtensibleXmlParser.error  - (null: 40, 62): cvc-attribute.3: The value '_4_Source_IPInput' of attribute 'id' on element 'dataInput' is not valid with respect to its type, 'ID'. | | 5 | 02/05 11:43:16,410[main] ERROR drools.xml.ExtensibleXmlParser.error  - (null: 41, 64): cvc-id.2: There are multiple occurrences of ID value '_4_Start_DateInput'. | | 5 | 02/05 11:43:16,410[main] ERROR drools.xml.ExtensibleXmlParser.error  - (null: 41, 64): cvc-attribute.3: The value '_4_Start_DateInput' of attribute 'id' on element 'dataInput' is not valid with respect to its type, 'ID'. | | 6 | 02/05 11:43:16,411[main] ERROR drools.xml.ExtensibleXmlParser.error  - (null: 42, 60): cvc-id.2: There are multiple occurrences of ID value '_4_End_DateInput'. | | 6 | 02/05 11:43:16,411[main] ERROR drools.xml.ExtensibleXmlParser.error  - (null: 42, 60): cvc-attribute.3: The value '_4_End_DateInput' of attribute 'id' on element 'dataInput' is not valid with respect to its type, 'ID'. | *parameters passed into work item: 111.111.111.111, 2013 05 02 09:00:00, 2013 04 02 09:00:00* Note the last line in red shows the values are being passed.  Does anyone see anything in the folllowing that would cause the Drools XML error? ********** public class ProcessMain {     public static final void main(String[] args) throws Exception {         // load up the knowledge base         KnowledgeBase kbase = readKnowledgeBase();         StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();         // start a new process instance         Map<String,Object> params = new HashMap<String,Object>();         params.put("processIP", "111.111.111.111");         params.put("processStartDate", "2013 05 02 09:00:00");         params.put("processEndDate", "2013 04 02 09:00:00");         ksession.getWorkItemManager().registerWorkItemHandler("IP Conversations", new IPConversationsWorkItemHandler());         ksession.startProcess("com.sample.bpmn.hello",params);     }     private static KnowledgeBase readKnowledgeBase() throws Exception {         KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();         kbuilder.add(ResourceFactory.newClassPathResource("sample.bpmn"), ResourceType.BPMN2);         return kbuilder.newKnowledgeBase();     } } *********** The Work Item Handler is: ********** package com.sample; import org.drools.runtime.process.WorkItem; import org.drools.runtime.process.WorkItemHandler; import org.drools.runtime.process.WorkItemManager; import java.sql.*; import java.util.*; public class IPConversationsWorkItemHandler implements WorkItemHandler {     public void executeWorkItem (WorkItem workItem, WorkItemManager manager) {         // extract parameters         String sourceIP = (String) workItem.getParameter("Source_IP");         String startDate = (String) workItem.getParameter("Start_Date");         String endDate = (String) workItem.getParameter("End_Date");         System.out.println("parameters passed into work item: " + sourceIP + "," + startDate + "," + endDate);         // notify manager that work item has been completed         manager.completeWorkItem(workItem.getId(),null);     }     public void abortWorkItem (WorkItem workItem, WorkItemManager manager) {         // do nothing, not planning to abort operation at this time     } } ********* ********* The work item definition file has the following entry: import org.drools.process.core.datatype.impl.type.StringDataType; [   [     "name" : "IP Conversations",     "parameters" : [         "Source_IP" : new StringDataType(),         "Start_Date" : new StringDataType(),         "End_Date" : new StringDataType()     ],     "results" : [     "Source_IPs" : new StringDataType(),     "Source_Ports" : new StringDataType(),     "Dest_IPs" : new StringDataType(),     "Dest_Ports" : new StringDataType(),     "Recv_Time"  : new StringDataType()     ],     "displayName" : "IP Conversations"   ], ] ******** -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/811284#811284] Start a new discussion in jBPM at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]