* iterable is empty.
   *
   * <p><b>Warning:</b> Typical uses of the resulting iterator may produce an infinite loop. You
   * should use an explicit {@code break} or be certain that you will eventually remove all the
   * elements.
   *
   * <p><b>{@code Stream} equivalent:</b> if the source iterable has only a single element {@code

	// 15090: prometheus
	// 15021/15020: agent
	excludePorts := "22,15090,15021"
	if config.StatusPort != 15090 && config.StatusPort != 15021 {
		if config.StatusPort != 0 {
			// Explicit status port set, use that
			excludePorts += fmt.Sprintf(",%d", config.StatusPort)
		} else {
			// use default status port
			excludePorts += ",15020"
		}
	}

    multiple `OkHttpClient` instances.

    This particularly-subtle bug was caused by us assigning each `OkHttpClient` instance its own
    `NullProxySelector` when an explicit proxy is configured. But we don't share connections when
    the proxy selectors are different. Ugh!


## Version 4.2.0

_2019-09-10_

        3,
        3,
        7,
        new boolean[] {false, true, false, false, true, false, true});
  }

  public void testToArray() {
    // need explicit type parameter to avoid javac warning!?
    List<Boolean> none = Arrays.<Boolean>asList();
    assertThat(Booleans.toArray(none)).isEqualTo(EMPTY);

    List<Boolean> one = Arrays.asList(false);

   * user-created objects that aren't accessible via this multimap's methods. This is generally used
   * to determine whether {@code copyOf} implementations should make an explicit copy to avoid
   * memory leaks.
   */
  boolean isPartialView() {
    return map.isPartialView();
  }

  // accessors

  @Override
  public boolean containsKey(@CheckForNull Object key) {

        } else if (createNewEntry || valueReference.isLoading()) {
          removeLoadingValue(key, hash, computingValueReference);
          return null;
        } else {
          removeEntry(e, hash, RemovalCause.EXPLICIT);
          return null;
        }
      } finally {
        unlock();
        postWriteCleanup();
      }
    }

   * is empty.
   *
   * <p><b>Warning:</b> Typical uses of the resulting iterator may produce an infinite loop. You
   * should use an explicit {@code break} or be certain that you will eventually remove all the
   * elements.
   */
  public static <T extends @Nullable Object> Iterator<T> cycle(Iterable<T> iterable) {
    checkNotNull(iterable);

    return new RegularImmutableSortedSet<>(
        ImmutableList.<E>asImmutableList(contents, uniques), comparator);
  }

  /**
   * Returns a builder that creates immutable sorted sets with an explicit comparator. If the
   * comparator has a more general type than the set being generated, such as creating a {@code
   * SortedSet<Integer>} with a {@code Comparator<Number>}, use the {@link Builder} constructor
   * instead.

import javax.annotation.CheckForNull;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * A multiset which maintains the ordering of its elements, according to either their natural order
 * or an explicit {@link Comparator}. In all cases, this implementation uses {@link
 * Comparable#compareTo} or {@link Comparator#compare} instead of {@link Object#equals} to determine
 * equivalence of instances.
 *

     * was called, in which case entries are sorted by value.
     *
     * <p>Prefer the equivalent method {@link #buildOrThrow()} to make it explicit that the method
     * will throw an exception if there are duplicate keys or values. The {@code build()} method
     * will soon be deprecated.
     *