@Deprecated
  public static <K, V> ImmutableSortedMap<K, V> of(K k1, V v1) {
    throw new UnsupportedOperationException();
  }
@Deprecated
  public static <K, V> ImmutableSortedMap<K, V> of(K k1, V v1) {
    throw new UnsupportedOperationException();
  }
@ Deprecated public static < K , V > ImmutableSortedMap < K , V > of ( K k1 , V v1 ) { throw new UnsupportedOperationException ( ) ; }
Not supported. <b>You are attempting to create a map that may contain a non-{@code Comparable}
key.</b> Proper calls will resolve to the version in {@code ImmutableSortedMap}, not this dummy
version.

@throws UnsupportedOperationException always
@deprecated <b>Pass a key of type {@code Comparable} to use {@link
ImmutableSortedMap#of(Comparable, Object)}.</b>
Not supported . <b > You are attempting to create a map that may contain a non - { @code Comparable } key . < / b > Proper calls will resolve to the version in { @code ImmutableSortedMap } not this dummy version .