private void initFlowlet() throws InterruptedException { final TransactionContext txContext = flowletContext.createTransactionContext(); try { txContext.start(); try { LOG.info("Initializing flowlet: " + flowletContext); flowlet.initialize(flowletContext); LOG.info("Flowlet initialized: " + flowletContext); } catch (Throwable t) { LOG.error("User code exception. Aborting transaction.", t); txContext.abort(new TransactionFailureException("User code exception. Aborting transaction", t)); throw Throwables.propagate(t); } txContext.finish(); } catch (TransactionFailureException e) { LOG.error("Flowlet throws exception during flowlet initialize: " + flowletContext, e); throw Throwables.propagate(e); } }