Runtime exception: NoClassDefFoundError: com/sapportals/htmlb/Component

Question

Hi,
I'm trying to use htmlb to have some javascript in my page:
Button myButton = (Button) view.getElement("DNMO.MainWindowView.testButton");
myButton.setJsObjectNeeded(true);
but at run time this exception is raised:
  java.lang.NoClassDefFoundError: com/sapportals/htmlb/Component
Libraries com.sap.portal.htmlb_api.jar and htmlb.jar are in my project java build path.
Has anyone seen this problem before?
Thanks for your help,
Romain

Answer 1

OK, so:
- In SAP NW developer studio, project properties -> Web Dynpro References -> Sharing References tab, if I add the htmlb reference there, next time I deploy my application, portalapp.xml is generated with that line:
<property name="SharingReference" value="htmlb"/>
- but I've got this warning when deploying:
Caught exception during application startup from SAP J2EE Engine's deploy service:
java.rmi.RemoteException: Error occurred while starting application arch.com/portal and wait. Reason: Clusterwide exception: server ID 27977350:com.sap.engine.services.deploy.container.DeploymentException: Clusterwide exception: Failed to prepare application XXX for startup. Reason=Clusterwide exception: Failed to start application XXX: The referenced application htmlb cannot be started. Check the causing exception for details. Hint: Is the referenced application deployed correctly on the server?
at com.sap.engine.services.webdynpro.WebDynproContainer.prepareStart(WebDynproContainer.java:1507)
- On the server, in the Visual Administrator, Services > Deploy selected in the left-hand pane, I can see sap.com/com.sapportals.htmlb.ear is deployed and started in the servlet_jsp container, but not in the webdynpro container
Is this my problem? If so, do you know how to deploy this application in the webdynpro container? I've been playing a bit with this visual admin tool but I can't find a way to do it...
Thanks
Edited by: Romain83 on Mar 18, 2010 11:12 AM