Not able to call sling service from component jsp

Question

Hi All,I have created a component jsp ,from which i need to call a sling service,this component page simply calls the methods of service.When i am trying to see the rendered page i am getting null pointer exception.Can someone tell me what could be the reason,why could not instantiate the service.Attaching jsp and service class. <%@include file="/libs/foundation/global.jsp"%><%@taglib prefix="cq" uri="http://www.day.com/taglibs/cq/1.0" %><%@page import="com.sample.initiatewf.InvokeAEMWorkflow"%>

TemplatePDF Page

<%//create a InvokeAEMWorkflow instancecom.sample.initiatewf.InvokeAEMWorkflow wfService = sling.getService(com.sample.initiatewf.InvokeAEMWorkflow.class);%>

About to invoke an AEM workflow using the AEM workflow APIs

<%=wfService.getStringMsg()%>

Thanks,Kishore

BrijeshYadav · Accepted Answer

[img]service.png[/img]Kishore,Your code required below change in jsp filecom.sample.initiatewf.InvokeAEMWorkflow wfService = sling.getService(com.sample.initiatewf.INvokeAEMWorkflowImp.class);You were accessing your service with name "com.sample.initiatewf.INvokeAEMWorkflow.class" instead of "com.sample.initiatewf.INvokeAEMWorkflowImp.class"  Because you registered your service in INvokeAEMWorkflowImp class as below@Service(value = {INvokeAEMWorkflowImp.class})So it has to be accessed with INvokeAEMWorkflowImp.Please see attached image for more clarification.RegardsBrijesh

smacdonald2008 · Answer

This is based on a community article. It looks like the OSGi bundle that contains the com.sample.initiatewf.InvokeAEMWorkflow service is not deployed and in an active state.

Make sure to deploy the OSGI bundle and place the bundle into an Active state as discussed here:

http://scottsdigitalcommunity.blogspot.ca/2013/09/creating-workflows-for-adobe-experience.html

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