Have you tried with 6.1.0.CR1 to see if that is already solved?

Maciej
On 2 lip 2014, at 10:36, Akila Rathnayake <akila.senarath@gmail.com> wrote:

hi all,
i
When I run a webservice task in kie workbench 6.0.1  I get the following error message;
 
Process Instances failed to start: [examples.ex4:627 - WS:2] -- Could not find work item handler for WebService
 
Even though I set my CustomWorkItemHandlers.conf to the required workitem handler error still repeats.
My CustomWorkItemHandlers.conf as follows;
 
[
  "Log": new org.jbpm.process.instance.impl.demo.SystemOutWorkItemHandler(),
  "WebService": new org.jbpm.process.workitem.webservice.WebServiceWorkItemHandler(ksession),
  "Rest": new org.jbpm.process.workitem.rest.RESTWorkItemHandler()
    "Service Task" : new org.jbpm.process.workitem.bpmn2.ServiceTaskHandler(ksession),
  "FileInput": new org.jbpm.formModeler.core.fieldTypes.file.FileCustomType(),
"Service Task" : new org.jbpm.process.workitem.bpmn2.ServiceTaskHandler(ksession)
]

and also i gone through redhat bugzill in following link,
also i did same thing that Kris Verlaenen said in comment 5

guys have you any idea about this error...

regards
Akila