super.setUp(testInfo);
        target = new HotThreadMonitorTarget();
    }

    @Test
    public void test_inheritance() {
        assertTrue(MonitorTarget.class.isAssignableFrom(HotThreadMonitorTarget.class),
                "HotThreadMonitorTarget should extend MonitorTarget");
        assertTrue(TimeoutTarget.class.isAssignableFrom(HotThreadMonitorTarget.class),
                "HotThreadMonitorTarget should implement TimeoutTarget");

        JobLog jobLog = new JobLog();
        jobLog.setId("test-log-1");
        jobLog.setJobName("Test Job");
        jobLog.setEndTime(null);

        MonitorTarget target = new MonitorTarget(jobLog);
        try {
            target.expired();
            // If it succeeds, check that lastUpdated is set
            assertNotNull(jobLog.getLastUpdated());
        } catch (Exception e) {

        super.setUp(testInfo);
        target = new SystemMonitorTarget();
    }

    @Test
    public void test_inheritance() {
        assertTrue(MonitorTarget.class.isAssignableFrom(SystemMonitorTarget.class), "SystemMonitorTarget should extend MonitorTarget");
        assertTrue(TimeoutTarget.class.isAssignableFrom(SystemMonitorTarget.class), "SystemMonitorTarget should implement TimeoutTarget");
    }

    @Test

        buf.append(",");
        monitorTarget.append(buf, "key3", () -> null);

        assertEquals("\"key1\":\"value1\",\"key2\":123,\"key3\":null", buf.toString());
    }

    // Test append with empty string
    @Test
    public void test_append_emptyString() {
        StringBuilder buf = new StringBuilder();
        Supplier<Object> supplier = () -> "";

     */
    static class MonitorTarget implements TimeoutTarget {

        /** The job log being monitored */
        private final JobLog jobLog;

        /**
         * Constructor for MonitorTarget.
         *
         * @param jobLog the job log to monitor
         */
        public MonitorTarget(final JobLog jobLog) {
            this.jobLog = jobLog;
        }