topic Error retrieving form properties from activiti-REST in Alfresco Archive https://connect.hyland.com/t5/alfresco-archive/error-retrieving-form-properties-from-activiti-rest/m-p/98182#M67663 <HTML><HEAD></HEAD><BODY><SPAN>Hello,</SPAN><BR /><BR /><SPAN>I have encountered this error when trying to retrieve the form properties. I am using activiti 5.8</SPAN><BR /><A href="http://localhost:8080/activiti-rest/service/form/1724/properties" rel="nofollow noopener noreferrer">http://localhost:8080/activiti-rest/service/form/1724/properties</A><BR /><BR /><SPAN>the stacktrace:</SPAN><BR /><SPAN>java.lang.NullPointerException</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; at org.codehaus.jackson.node.ObjectNode.toString(ObjectNode.java:344)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; at org.codehaus.jackson.node.ArrayNode.toString(ArrayNode.java:403)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; at org.codehaus.jackson.node.ObjectNode.toString(ObjectNode.java:344)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; at java.lang.String.valueOf(String.java:2826)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; at java.lang.StringBuilder.append(StringBuilder.java:115)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; at org.restlet.service.ConverterService.toRepresentation(ConverterService.java:213)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; at org.restlet.resource.UniformResource.toRepresentation(UniformResource.java:667)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; at org.restlet.resource.ServerResource.doHandle(ServerResource.java:464)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; at org.restlet.resource.ServerResource.get(ServerResource.java:645)</SPAN><BR /><BR /><SPAN>heres my process definition.</SPAN><BR /><PRE class="language-none line-numbers"><CODE><BR />&lt;definitions xmlns="<A href="http://www.omg.org/spec/BPMN/20100524/MODEL" rel="nofollow noopener noreferrer">http://www.omg.org/spec/BPMN/20100524/MODEL</A>" xmlns:xsi="<A href="http://www.w3.org/2001/XMLSchema-instance" rel="nofollow noopener noreferrer">http://www.w3.org/2001/XMLSchema-instance</A>" xmlns:activiti="<A href="http://activiti.org/bpmn" rel="nofollow noopener noreferrer">http://activiti.org/bpmn</A>" xmlns:bpmndi="<A href="http://www.omg.org/spec/BPMN/20100524/DI" rel="nofollow noopener noreferrer">http://www.omg.org/spec/BPMN/20100524/DI</A>" xmlns:omgdc="<A href="http://www.omg.org/spec/DD/20100524/DC" rel="nofollow noopener noreferrer">http://www.omg.org/spec/DD/20100524/DC</A>" xmlns:omgdi="<A href="http://www.omg.org/spec/DD/20100524/DI" rel="nofollow noopener noreferrer">http://www.omg.org/spec/DD/20100524/DI</A>" typeLanguage="<A href="http://www.w3.org/2001/XMLSchema" rel="nofollow noopener noreferrer">http://www.w3.org/2001/XMLSchema</A>" expressionLanguage="<A href="http://www.w3.org/1999/XPath" rel="nofollow noopener noreferrer">http://www.w3.org/1999/XPath</A>" targetNamespace="diagrams"&gt;<BR />&nbsp; &lt;process id="LoanProcess" name="LoanProcess"&gt;<BR />&nbsp;&nbsp;&nbsp; &lt;userTask id="processLoanRequestTask" name="Process Loan Request" activiti:assignee="${initiator}"&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;extensionElements&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;activiti:formProperty id="ICNO" name="IC Number" type="string" required="true"&gt;&lt;/activiti:formProperty&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;activiti:formProperty id="amount" name="Loan Amount" type="long" required="true"&gt;&lt;/activiti:formProperty&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;/extensionElements&gt;<BR />&nbsp;&nbsp;&nbsp; &lt;/userTask&gt;<BR />&nbsp;&nbsp;&nbsp; &lt;startEvent id="startevent1" name="Start" activiti:initiator="initiator"&gt;&lt;/startEvent&gt;<BR />&nbsp;&nbsp;&nbsp; &lt;sequenceFlow id="flow2" name="" sourceRef="startevent1" targetRef="processLoanRequestTask"&gt;&lt;/sequenceFlow&gt;<BR />&nbsp;&nbsp;&nbsp; &lt;endEvent id="endevent1" name="End"&gt;&lt;/endEvent&gt;<BR />&nbsp;&nbsp;&nbsp; &lt;serviceTask id="checkCredit" name="Check Credit" activiti:class="loan.CheckCredit"&gt;&lt;/serviceTask&gt;<BR />&nbsp;&nbsp;&nbsp; &lt;sequenceFlow id="flow3" name="" sourceRef="processLoanRequestTask" targetRef="checkCredit"&gt;&lt;/sequenceFlow&gt;<BR />&nbsp;&nbsp;&nbsp; &lt;userTask id="approveLoanTask" name="Approve Loan" activiti:candidateGroups="management" activiti:formKey="approveLoan.jsp"&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;extensionElements&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;activiti:formProperty id="approveLoan" name="Approve Loan?" type="enum" required="true"&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;activiti:value id="true" name="Yes"&gt;&lt;/activiti:value&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;activiti:value id="false" name="No"&gt;&lt;/activiti:value&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;/activiti:formProperty&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;/extensionElements&gt;<BR />&nbsp;&nbsp;&nbsp; &lt;/userTask&gt;<BR />&nbsp;&nbsp;&nbsp; &lt;exclusiveGateway id="exclusivegateway2" name="Exclusive Gateway"&gt;&lt;/exclusiveGateway&gt;<BR />&nbsp;&nbsp;&nbsp; &lt;sequenceFlow id="flow7" name="" sourceRef="approveLoanTask" targetRef="exclusivegateway2"&gt;&lt;/sequenceFlow&gt;<BR />&nbsp;&nbsp;&nbsp; &lt;userTask id="processLoanTask" name="Process Loan" activiti:assignee="${initiator}"&gt;&lt;/userTask&gt;<BR />&nbsp;&nbsp;&nbsp; &lt;sequenceFlow id="flow9" name="Approved" sourceRef="exclusivegateway2" targetRef="processLoanTask"&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;conditionExpression xsi:type="tFormalExpression"&gt;&lt;![CDATA[${approveLoan == 'true'}]]&gt;&lt;/conditionExpression&gt;<BR />&nbsp;&nbsp;&nbsp; &lt;/sequenceFlow&gt;<BR />&nbsp;&nbsp;&nbsp; &lt;sequenceFlow id="flow10" name="Reject" sourceRef="exclusivegateway2" targetRef="endevent1"&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;conditionExpression xsi:type="tFormalExpression"&gt;&lt;![CDATA[${approveLoan == 'false'}]]&gt;&lt;/conditionExpression&gt;<BR />&nbsp;&nbsp;&nbsp; &lt;/sequenceFlow&gt;<BR />&nbsp;&nbsp;&nbsp; &lt;sequenceFlow id="flow11" name="" sourceRef="processLoanTask" targetRef="endevent1"&gt;&lt;/sequenceFlow&gt;<BR />&nbsp;&nbsp;&nbsp; &lt;sequenceFlow id="flow12" name="" sourceRef="checkCredit" targetRef="exclusivegateway3"&gt;&lt;/sequenceFlow&gt;<BR />&nbsp;&nbsp;&nbsp; &lt;sequenceFlow id="flow13" name="" sourceRef="exclusivegateway3" targetRef="endevent1"&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;extensionElements&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;activiti:executionListener event="take" class="loan.FailCreditListener"&gt;&lt;/activiti:executionListener&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;/extensionElements&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;conditionExpression xsi:type="tFormalExpression"&gt;&lt;![CDATA[${result.equals('false')}]]&gt;&lt;/conditionExpression&gt;<BR />&nbsp;&nbsp;&nbsp; &lt;/sequenceFlow&gt;<BR />&nbsp;&nbsp;&nbsp; &lt;sequenceFlow id="flow14" name="" sourceRef="exclusivegateway3" targetRef="approveLoanTask"&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;extensionElements&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;activiti:executionListener event="take" class="loan.PassCreditListener"&gt;&lt;/activiti:executionListener&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;/extensionElements&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;conditionExpression xsi:type="tFormalExpression"&gt;&lt;![CDATA[${result.equals('true')}]]&gt;&lt;/conditionExpression&gt;<BR />&nbsp;&nbsp;&nbsp; &lt;/sequenceFlow&gt;<BR />&nbsp;&nbsp;&nbsp; &lt;exclusiveGateway id="exclusivegateway3" name="Exclusive Gateway"&gt;&lt;/exclusiveGateway&gt;<BR />&nbsp; &lt;/process&gt;<BR /><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN></CODE></PRE><BR /><SPAN>Any help is greatly appreciated.</SPAN><BR /><BR /><SPAN>Thanks</SPAN></BODY></HTML> Fri, 10 Feb 2012 09:32:53 GMT memetscc 2012-02-10T09:32:53Z Error retrieving form properties from activiti-REST https://connect.hyland.com/t5/alfresco-archive/error-retrieving-form-properties-from-activiti-rest/m-p/98182#M67663 Hello,I have encountered this error when trying to retrieve the form properties. I am using activiti 5.8http://localhost:8080/activiti-rest/service/form/1724/propertiesthe stacktrace:java.lang.NullPointerException&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; at org.codehaus.jackson.node.ObjectNode.toString(ObjectNode.java:344)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; at Fri, 10 Feb 2012 09:32:53 GMT https://connect.hyland.com/t5/alfresco-archive/error-retrieving-form-properties-from-activiti-rest/m-p/98182#M67663 memetscc 2012-02-10T09:32:53Z Re: Error retrieving form properties from activiti-REST https://connect.hyland.com/t5/alfresco-archive/error-retrieving-form-properties-from-activiti-rest/m-p/98183#M67664 <HTML><HEAD></HEAD><BODY><SPAN>Additional info:</SPAN><BR /><BR /><SPAN>I also got the same error when trying to get form properties for task "Handle Vacation Request" that is from Activiti's own sample.</SPAN></BODY></HTML> Mon, 13 Feb 2012 01:24:36 GMT https://connect.hyland.com/t5/alfresco-archive/error-retrieving-form-properties-from-activiti-rest/m-p/98183#M67664 memetscc 2012-02-13T01:24:36Z Re: Error retrieving form properties from activiti-REST https://connect.hyland.com/t5/alfresco-archive/error-retrieving-form-properties-from-activiti-rest/m-p/98184#M67665 <HTML><HEAD></HEAD><BODY><SPAN>I have the same error too , is there any solution ?</SPAN></BODY></HTML> Fri, 01 Jun 2012 03:37:03 GMT https://connect.hyland.com/t5/alfresco-archive/error-retrieving-form-properties-from-activiti-rest/m-p/98184#M67665 cuizhiyong 2012-06-01T03:37:03Z Re: Error retrieving form properties from activiti-REST https://connect.hyland.com/t5/alfresco-archive/error-retrieving-form-properties-from-activiti-rest/m-p/98185#M67666 <HTML><HEAD></HEAD><BODY><SPAN>Did you try it with Activiti 5.9? If so can you post the full stacktrace?</SPAN><BR /><BR /><SPAN>Best regards,</SPAN></BODY></HTML> Fri, 01 Jun 2012 07:39:00 GMT https://connect.hyland.com/t5/alfresco-archive/error-retrieving-form-properties-from-activiti-rest/m-p/98185#M67666 trademak 2012-06-01T07:39:00Z