public void simple() throws Exception {
BatchCompilingEnvironment env = prov.getEnvironment();
JobFlowWorkDescriptionProcessor proc = new JobFlowWorkDescriptionProcessor();
proc.initialize(env);
JobFlowWorkDescription jobflow = new JobFlowWorkDescription(SimpleJobFlow.class);
JobflowModel model = proc.process(jobflow);
File jar = JobFlowWorkDescriptionProcessor.getPackageLocation(
env.getConfiguration().getOutputDirectory(),
model.getFlowId());