final CharMatcher first;
    final CharMatcher second;

    And(CharMatcher a, CharMatcher b) {
      first = checkNotNull(a);
      second = checkNotNull(b);
    }

    @Override
    public boolean matches(char c) {
      return first.matches(c) && second.matches(c);
    }

    @GwtIncompatible // used only from other GwtIncompatible code

  <version>1.0</version>
  <name>Guava ListenableFuture only</name>
  <description>
    Contains Guava's com.google.common.util.concurrent.ListenableFuture class,
    without any of its other classes -- but is also available in a second
    "version" that omits the class to avoid conflicts with the copy in Guava
    itself. The idea is:

    - If users want only ListenableFuture, they depend on listenablefuture-1.0.

        // IOException handling is done by calling code
    }

    /**
     * Compares two SMB files by name.
     * @param f1 first file to compare
     * @param f1name name of first file
     * @param f2 second file to compare
     * @return comparison result for sorting
     * @throws IOException if an I/O error occurs
     */

        // Arrange: program send() to simulate first, next, next(NO_MORE_FILES)
        List<String[]> batches = new ArrayList<>();
        batches.add(new String[] { ".", "..", "a", "b" }); // first batch, dot entries filtered
        batches.add(new String[] { "c" }); // second batch
        batches.add(new String[] {}); // last -> NO_MORE_FILES

        // send() answer that mutates the provided response

Because this code is executed before the application **starts** taking requests, and right after it **finishes** handling requests, it covers the whole application **lifespan** (the word "lifespan" will be important in a second 😉).

          @Override
          protected Scheduler scheduler() {
            return newFixedDelaySchedule(Long.MAX_VALUE, Long.MAX_VALUE, SECONDS);
          }
        };
    service.startAsync().awaitRunning();
    assertThrows(TimeoutException.class, () -> service.firstBarrier.await(5, SECONDS));
    assertEquals(0, service.numIterations.get());
    service.stopAsync();
    service.awaitTerminated();
  }

          @Override
          protected Scheduler scheduler() {
            return newFixedDelaySchedule(Long.MAX_VALUE, Long.MAX_VALUE, SECONDS);
          }
        };
    service.startAsync().awaitRunning();
    assertThrows(TimeoutException.class, () -> service.firstBarrier.await(5, SECONDS));
    assertEquals(0, service.numIterations.get());
    service.stopAsync();
    service.awaitTerminated();
  }

  }

  private HashMultiset(int distinctElements) {
    super(Maps.newHashMapWithExpectedSize(distinctElements));
  }

  /**
   * @serialData the number of distinct elements, the first element, its count, the second element,
   *     its count, and so on
   */
  @GwtIncompatible
  @J2ktIncompatible
    private void writeObject(ObjectOutputStream stream) throws IOException {
    stream.defaultWriteObject();

### DurationSeconds

The duration, in seconds. The value can range from 900 seconds (15 minutes) up to 365 days. If value is higher than this setting, then operation fails. By default, the value is set to 3600 seconds.

| Params        | Value                                              |
| :--           | :--                                                |

	processStarttimeSecondsMD         = NewGaugeMD(processStartTimeSeconds, "Start time for MinIO process in seconds since Unix epoc")
	processUptimeSecondsMD            = NewGaugeMD(processUptimeSeconds, "Uptime for MinIO process in seconds")
	processFileDescriptorLimitTotalMD = NewGaugeMD(processFileDescriptorLimitTotal, "Limit on total number of open file descriptors for the MinIO Server process")