assertThat(logged.get(0).getThrown()).hasMessageThat().isEqualTo("You can't fire me, I quit.");
  }

  private static final class CancelPanickingFuture<V> extends AbstractFuture<V> {
    @Override
    public boolean cancel(boolean mayInterruptIfRunning) {
      setException(new Error("You can't fire me, I quit."));
      return false;
    }
  }

    /** The key of the configuration. e.g. org.codelibs.fess.app.job.ScriptExecutorJob */
    String SCHEDULER_JOB_CLASS = "scheduler.job.class";

    /** The key of the configuration. e.g. QUIT */
    String SCHEDULER_CONCURRENT_EXEC_MODE = "scheduler.concurrent.exec.mode";

    /** The key of the configuration. e.g. 30 */
    String SCHEDULER_MONITOR_INTERVAL = "scheduler.monitor.interval";

    assertThat(logged.get(0).getThrown()).hasMessageThat().isEqualTo("You can't fire me, I quit.");
  }

  private static final class CancelPanickingFuture<V> extends AbstractFuture<V> {
    @Override
    public boolean cancel(boolean mayInterruptIfRunning) {
      setException(new Error("You can't fire me, I quit."));
      return false;
    }
  }