throw new RuntimeException("Failure in half-open");
            });
            fail("Should have thrown exception");
        } catch (CIFSException e) {
            // Expected - failure in HALF_OPEN should reopen circuit
        }

        assertEquals(State.OPEN, circuitBreaker.getState(), "Circuit should reopen after failure in HALF_OPEN");
    }

    @Test

            "Logon failure: unknown user name or bad password.", "Logon failure: user account restriction.",
            "Logon failure: account logon time restriction violation.", "Logon failure: user not allowed to log on to this computer.",
            "Logon failure: the specified account password has expired.", "Logon failure: account currently disabled.",

    @Override
    protected void doStart() {
      notifyFailed(new IllegalStateException("start failure"));
    }
  }

  private static class FailRunService extends NoOpService {
    @Override
    protected void doStart() {
      super.doStart();
      notifyFailed(new IllegalStateException("run failure"));
    }
  }

  private static class FailStopService extends NoOpService {
    @Override

      checkArgument(
          (failure != null) == (internalState == FAILED),
          "A failure cause should be set if and only if the state is failed.  Got %s and %s "
              + "instead.",
          internalState,
          failure);
      this.state = internalState;
      this.shutdownWhenStartupFinishes = shutdownWhenStartupFinishes;
      this.failure = failure;
    }

    /**

        // Verify the exception message indicates name resolution failure
        assertTrue(exception.getMessage().contains("NONEXISTENT") || exception.getMessage().contains("unknown")
                || exception.getMessage().contains("not found"), "Exception message should indicate name resolution failure");
    }

    @Test
    @DisplayName("Should handle NetBIOS name with type and scope with timeout")

              ? (isBoolean(method) ? Outcome.FAILURE : Outcome.HANG)
              : Outcome.SUCCESS);
      addTests(
          suite,
          method,
          Scenario.UNSATISFIED_AND_UNOCCUPIED_BEFORE_ENTERING,
          TimeoutsToUse.INFINITE,
          isGuarded(method)
              ? (isTryEnter(method) || isEnterIf(method) ? Outcome.FAILURE : Outcome.HANG)
              : Outcome.SUCCESS);

     *
     * @param from The previous state that is being transitioned from. Failure can occur in any
     *     state with the exception of {@linkplain State#NEW NEW} or {@linkplain State#TERMINATED
     *     TERMINATED}.
     * @param failure The exception that caused the failure.
     */
    public void failed(State from, Throwable failure) {}
  }

      checkArgument(
          (failure != null) == (internalState == FAILED),
          "A failure cause should be set if and only if the state is failed.  Got %s and %s "
              + "instead.",
          internalState,
          failure);
      this.state = internalState;
      this.shutdownWhenStartupFinishes = shutdownWhenStartupFinishes;
      this.failure = failure;
    }

    /**

            }
        });

        handle.setNotificationFuture(future);
    }

    /**
     * Determine optimal polling interval based on directory activity and failure count
     *
     * Current strategy is based on failure count. In the future, this could be enhanced to consider:
     * - Recent event frequency (successful notifications)
     * - Time since last successful notification

            t.setDaemon(true);
            return t;
        });
        this.failoverStates = new ConcurrentHashMap<>();
    }

    /**
     * Handle channel failure
     *
     * @param failedChannel failed channel
     * @param error error that caused failure
     */
    public void handleFailure(ChannelInfo failedChannel, Exception error) {
        log.warn("Channel {} failed: {}", failedChannel.getChannelId(), error.getMessage());