ExpandTaskCommand expandTaskCommandClaim=new ExpandTaskCommand();
expandTaskCommandClaim.setCommandType("claim");
expandTaskCommandClaim.setTaskId(instanceQueryTo.getId());
taskService.expandTaskComplete(expandTaskCommandClaim, null);
//taskService.claim(instanceQueryTo.getId(), initiator);
//String nodeId = instanceQueryTo.getNodeId();
//String processDefinitionId = instanceQueryTo