generator1.setCommandList(Collections.singletonList("echo test1"));
        generator2.setCommandList(Collections.singletonList("echo test2"));

        generator1.setCommandTimeout(1000L);
        generator2.setCommandTimeout(2000L);

        assertTrue("Multiple generators should work independently", true);
    }

    // Test command string construction edge cases

    /** The end-of-life timestamp for the application. */
    protected long eolTime;

    private short systemCpuPercent;

    private long systemCpuCheckTime;

    private long systemCpuCheckInterval = 1000L;

    /** A map of listeners for configuration updates. */
    protected Map<String, Supplier<String>> updateConfigListenerMap = new HashMap<>();

    /** A set of names of threads that are currently waiting. */

            } else if (logger.isDebugEnabled()) {
                logger.debug("[{}] Failed to access to Fesen ({})", i, SystemUtil.getSearchEngineHttpAddress(), cause);
            }
            ThreadUtil.sleep(1000L);
        }
        final String message =
                "Fesen (" + SystemUtil.getSearchEngineHttpAddress() + ") is not available. Check the state of your Fesen cluster ("

 */
class TaskRunner(
  val backend: Backend,
  internal val logger: Logger = TaskRunner.logger,
) : Lockable {
  private var nextQueueName = 10000
  private var coordinatorWaiting = false
  private var coordinatorWakeUpAt = 0L

  /**
   * When we need a new thread to run tasks, we call [Backend.execute]. A few microseconds later we