log.put("uncaught exception: $throwable")
    }

  private val threadFactory =
    ThreadFactory { runnable ->
      Thread(runnable, "TaskRunnerRealBackendTest").apply {
        isDaemon = true
        uncaughtExceptionHandler = loggingUncaughtExceptionHandler
      }
    }

  private val backend = TaskRunner.RealBackend(threadFactory)
  private val taskRunner = TaskRunner(backend)

    Thread thread = threadFactory.newThread(monitoredRunnable);
    checkThreadPoolName(thread, 1);

    Thread defaultThread = defaultThreadFactory().newThread(monitoredRunnable);
    assertEquals(defaultThread.isDaemon(), thread.isDaemon());
    assertEquals(defaultThread.getPriority(), thread.getPriority());
    assertThat(thread.getThreadGroup()).isEqualTo(defaultThread.getThreadGroup());
    assertThat(thread.getUncaughtExceptionHandler())

    Thread thread = threadFactory.newThread(monitoredRunnable);
    checkThreadPoolName(thread, 1);

    Thread defaultThread = defaultThreadFactory().newThread(monitoredRunnable);
    assertEquals(defaultThread.isDaemon(), thread.isDaemon());
    assertEquals(defaultThread.getPriority(), thread.getPriority());
    assertThat(thread.getThreadGroup()).isEqualTo(defaultThread.getThreadGroup());
    assertThat(thread.getUncaughtExceptionHandler())

            Thread[] ts = new Thread[tg.activeCount()];
            tg.enumerate(ts);

            for (Thread active : ts) {
                String name = active.getName();
                boolean daemon = active.isDaemon();
                assertTrue(daemon, name + " is no daemon Thread.");
            }
        }

        assertTrue(seen, "Could not find ThreadGroup: " + DefaultArtifactResolver.DaemonThreadCreator.THREADGROUP_NAME);