@Override public DescribeStepResult describeStepRequest(AmazonElasticMapReduceClient emrClient, DescribeStepRequest describeStepRequest) { MockEmrJobFlow cluster = getClusterById(describeStepRequest.getClusterId()); if (cluster == null) { throw new AmazonServiceException("No cluster found with jobFlowId: " + describeStepRequest.getClusterId()); } Step stepResult = null; // Add steps that are in these states for (MockEmrJobFlow step : cluster.getSteps()) { if (describeStepRequest.getStepId().equalsIgnoreCase(step.getJobFlowId())) { HadoopStepConfig hadoopStepConfig = new HadoopStepConfig().withJar(step.getJarLocation()); stepResult = new Step().withId(step.getJobFlowId()).withName(step.getJobFlowName()).withStatus(new StepStatus().withState(step.getStatus())) .withConfig(hadoopStepConfig); if (stepResult.getName().equalsIgnoreCase(MOCK_STEP_WITHOUT_ID_NAME)) { stepResult.setId(null); } break; } } return new DescribeStepResult().withStep(stepResult); }