8190917: SSL session resumption broken for protocols other than TLSv1.2

[Jaikiran Pai]

(Moved from jdk9-dev list[1] to here)

I would like to contribute a patch, containing a potential fix and a 
test case, to the issue reported at 
https://bugs.openjdk.java.net/browse/JDK-8190917. This is going to be my 
first contribution to OpenJDK, so I would need some guidance/help in 
having this reviewed/merged, please.

To give a quick overview of this specific bug - the issue relates to SSL 
session resumption which is no longer functional in Java 9 for SSL 
protocols other than TLSv1.2. The JIRA itself has more extensive details 
and a test case which reproduces the issue.

So far, I have followed various documentation to setup and build OpenJDK 
locally. I have completed the following set of basic tasks:

     - Checked out the mercurial repo for jdk 
(http://hg.openjdk.java.net/jdk/jdk)
     - Built the JDK locally, following the instructions under 
doc/building.md
     - Run some of the basic tests successfully

I have also signed and submitted the Oracle Contributor Agreement in a 
mail a few hours back.

Right now I have the patch with the potential fix ready and also have a 
(jtreg) testcase which reproduces the issue and verifies the bug fix. I 
would like to understand what my next steps should be. More specifically:

     1. How do I initiate a review of the proposed change? Should I 
start a new discussion, in this very mailing list, with the subject line 
having [PATCH], an attachment with the patch and the details about the 
change? Or should I be attaching the proposed change in this current 
discussion itself?

     2. The "How to contribute" guide states "Your patch must be built 
and tested on all relevant platforms before submission." I use Mac OS 
for development and that's the only system I have access to. Would I be 
required to test this change on other *nix and Windows OS?

[1] 
http://mail.openjdk.java.net/pipermail/jdk9-dev/2017-November/006050.html
[2] http://openjdk.java.net/contribute/

-Jaikiran