Re: [VOTE] Require Java 17 for Maven 4

[Martin Desruisseaux]

Just realized since I'm working on the Maven compiler plugin, upgrading 
to Java 21 instead of 17 would allow us to replace currently 
hard-to-read Javadoc like this:

     * <pre>
     * &lt;compilerArgs&gt;
     *   &lt;arg&gt;-Xmaxerrs&lt;/arg&gt;
     *   &lt;arg&gt;1000&lt;/arg&gt;
     *   &lt;arg&gt;-Xlint&lt;/arg&gt;
     *   &lt;arg&gt;-J-Duser.language=en_us&lt;/arg&gt;
     * &lt;/compilerArgs&gt;
     * </pre>
by:

     * {@snippet lang="xml" :
     * <compilerArgs>
     *   <arg>-Xmaxerrs</arg>
     *   <arg>1000</arg>
     *   <arg>-Xlint</arg>
     *   <arg>-J-Duser.language=en_us</arg>
     * </compilerArgs>
     * }

However it may not a sufficient reason for restarting a new vote. I'm 
just mentioning that for info.

    Martin