}
    String oldPathSeparator = PATH_SEPARATOR.value();
    String oldClassPath = JAVA_CLASS_PATH.value();
    System.setProperty(PATH_SEPARATOR.key(), ":");
    System.setProperty(
        JAVA_CLASS_PATH.key(),
        Joiner.on(":")
            .join(
                "relative/path/to/some.jar",
                "/absolute/path/to/some.jar",

            return true;
          } else if (nanos <= 0) {
            return false;
          } else {
            long now = System.nanoTime();
            TimeUnit.NANOSECONDS.timedWait(lock, nanos);
            nanos -= System.nanoTime() - now; // subtract the actual time we waited
          }
        }
      }
    }

    /**

                  @Override
                  protected List<String> create(String[] elements) {
                    String[] rest = new String[elements.length - 1];
                    System.arraycopy(elements, 1, rest, 0, elements.length - 1);
                    return Lists.asList(elements[0], rest);
                  }
                })
            .named("Lists.asList, 2 parameter")

    Comparable<?>[] contents = new Comparable<?>[6 + remaining.length];
    contents[0] = e1;
    contents[1] = e2;
    contents[2] = e3;
    contents[3] = e4;
    contents[4] = e5;
    contents[5] = e6;
    System.arraycopy(remaining, 0, contents, 6, remaining.length);
    return construct(Ordering.natural(), contents.length, (E[]) contents);
  }

  // TODO(kevinb): Consider factory methods that reject duplicates

  /**

                  @Override
                  protected List<String> create(String[] elements) {
                    String[] rest = new String[elements.length - 1];
                    System.arraycopy(elements, 1, rest, 0, elements.length - 1);
                    return Lists.asList(elements[0], rest);
                  }
                })
            .named("Lists.asList, 2 parameter")

     * can do magic to mock static method calls still can't do so for a system
     * class, so we need the indirection. In production, Hotspot should still
     * recognize that the call is 1-morphic and should still be willing to
     * inline it if necessary.
     */
    int identityHashCode(Object object) {
      return System.identityHashCode(object);
    }
  }

  // Constructor

  /**

      return this;
    }

    @CanIgnoreReturnValue
    Builder<K, V> combine(Builder<K, V> other) {
      checkNotNull(other);
      ensureCapacity(this.size + other.size);
      System.arraycopy(
          other.alternatingKeysAndValues,
          0,
          this.alternatingKeysAndValues,
          this.size * 2,
          other.size * 2);
      this.size += other.size;
      return this;

    Object[] elements = new Object[paramCount + others.length];
    elements[0] = e1;
    elements[1] = e2;
    elements[2] = e3;
    elements[3] = e4;
    elements[4] = e5;
    elements[5] = e6;
    System.arraycopy(others, 0, elements, paramCount, others.length);
    return construct(elements.length, elements);
  }

  /**
   * Constructs an {@code ImmutableSet} from the first {@code n} elements of the specified array. If

    array[3] = e4;
    array[4] = e5;
    array[5] = e6;
    array[6] = e7;
    array[7] = e8;
    array[8] = e9;
    array[9] = e10;
    array[10] = e11;
    array[11] = e12;
    System.arraycopy(others, 0, array, 12, others.length);
    return construct(array);
  }

  /**
   * Returns an immutable list containing the given elements, in order. If {@code elements} is a

   */
  public static Equivalence<Object> equals() {
    return Equals.INSTANCE;
  }

  /**
   * Returns an equivalence that uses {@code ==} to compare values and {@link
   * System#identityHashCode(Object)} to compute the hash code. {@link Equivalence#equivalent}
   * returns {@code true} if {@code a == b}, including in the case that a and b are both null.
   *
   * @since 13.0