These should refer to NavigableSet/NavigableMap. All of the implementations in the JDK that implement SortedX also implement NavigableX. The main body of SortedX docs should remain complete, though, since there may be implementations in the wild that implement SortedX but not NavigableX.

In particular the note about the presence of only half-open ranges doesn't apply to the NavigableX interfaces. The workaround/"hack" of appending a '\0' character to a String should probably just be removed.

See core-libs-dev email thread: https://mail.openjdk.org/pipermail/core-libs-dev/2024-November/133732.html