_[Original issue](https://code.google.com/p/guava-libraries/issues/detail?id=1813) created by **j...@nwsnet.de** on 2014-07-23 at 03:21 PM_

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I didn't find information on the immutability of `Range`&nbsp;instances in the JavaDocs [1]; only the wiki page [2] explicitly states it.

I suggest documenting the immutability directly in the JavaDocs, and thus in the implementation itself.

[1] https://google.github.io/guava/apidocs/com/google/common/collect/Range.html
[2] https://code.google.com/p/guava-libraries/wiki/RangesExplained

(Slightly unrelated: The comments disappeared from the wiki, especially helpful ones which I remembered to be on the page on ranges are gone. I'd like to state that I don't welcome that change.)

throw new AssertionError();
    }
  }
  /**
   * Returns a range that contains all values strictly greater than {@code endpoint}.
   *
   * @since 14.0
   */
  public static <C extends Comparable<?>> Range<C> greaterThan(C endpoint) {
    return create(Cut.aboveValue(endpoint), Cut.<C>aboveAll());
  }
  /**
   * Returns a range that contains all values greater than or equal to {@code endpoint}.
   *
   * @since 14.0
   */
  public static <C extends Comparable<?>> Range<C> atLeast(C endpoint) {
    return create(Cut.belowValue(endpoint), Cut.<C>aboveAll());
  }
  /**
   * Returns a range from the given endpoint, which may be either inclusive (closed) or exclusive
   * (open), with no upper bound.
   *
   * @since 14.0
   */
  public static <C extends Comparable<?>> Range<C> downTo(C endpoint, BoundType boundType) {
    switch (boundType) {
      case OPEN:
        return greaterThan(endpoint);
      case CLOSED: