if (logger.isDebugEnabled()) {
                    logger.debug("Failed to select a job by {}", id, e);
                }
                lastException = e;
                ThreadUtil.sleep(RandomUtils.nextLong(500, 5000));
            }
        }
        logger.warn("Failed to select a job by {}", id, lastException);
        return OptionalEntity.empty();
    }

        if ( f != null ) {
            f.delete();
        }
    }


    protected String makeRandomName () {
        return "jcifs-test-" + Math.abs(this.rand.nextLong());
    }


    protected String makeRandomDirectoryName () {
        return makeRandomName() + "/";
    }

    public ReadWriteTest ( String name, Map<String, String> properties ) {
        super(name, properties);
    }

    private static final long SEED = ( new Random() ).nextLong();


    @Override
    @Before
    public void setUp () throws Exception {
        super.setUp();
    }


    static Random getRandom () {
        return new Random(SEED);
    }