protected Workflow createWorkflow(String caller) throws WorkflowException {
Workflow workflow = (Workflow) ctl.getMock();
workflow.setConfiguration(OsWorkflowTemplateTests.this.configuration);
ctl.setVoidCallable();
workflow.changeEntryState(MOCK_INSTANCE_ID, newState);
ctl.setVoidCallable();
ctl.replay();
return workflow;
}