RFR: 8272163: Add -version option to keytool and jarsigner [v2]

[Weijun Wang]

On Tue, 19 Oct 2021 01:09:26 GMT, Hai-May Chao <hchao at openjdk.org> wrote:

>> It'd be useful to have a -version option for keytool and jarsigner. Many other JDK tools already have a -version option. This is to add -version option to keytool and jarsigner like jar command does.
>> 
>> CSR review:
>> https://bugs.openjdk.java.net/browse/JDK-8275174
>
> Hai-May Chao has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Fix -version in jarsigner and update tests

src/jdk.jartool/share/classes/sun/security/tools/jarsigner/Main.java line 314:

> 312:         if (version) {
> 313:             doPrintVersion();
> 314:         }

So if both `-version` and `file.jar` are provided, jarsigner will both sign the jar and print the version. This is probably OK but I prefer the `java` style that only prints the version.

-------------

PR: https://git.openjdk.java.net/jdk/pull/5954