In the VM Guide we have a section describing Signal Chaining e.g.

https://docs.oracle.com/en/java/javase/15/vm/signal-chaining.html#GUID-CB49A2A7-2A9F-4C18-948F-6D4A96FF688D

This needs to be updated to address the deprecation of sigset/signal usage under JDK-8257572.

After the paragraph that starts:

"Your application can link and load the libjsig.so shared library ..."

add:

Note: As of Java 16 the use of the <code>signal</code> and <code>sigset</code> functions are deprecated, and support for those functions will be removed in a future release. Use the <code>sigaction</code> function instead.