break;
case DELETE_PIPELINE:
DeletePipelineTask deletePipelineTask = (DeletePipelineTask) task;
try {
backEnd.deletePipeline(
deletePipelineTask.getRootJobKey(), deletePipelineTask.shouldForce(), false);
} catch (Exception e) {
logger.log(Level.WARNING, "DeletePipeline operation failed.", e);
}
break;
case HANDLE_CHILD_EXCEPTION: