Hi wishmaster7,
use something like this with JBPM5.4
java.util.Map<String, Object> result = new java.util.HashMap<String, Object>();
result.put("Result", action);
org.jbpm.task.service.ContentData contentData = org.jbpm.task.utils.ContentMarshallerHelper.marshal(result, null);
client.complete(taskId, userId, contentData);
Regards,
Thomas Setiabudi