Kiichi Hiromasa

This may be related to #7247. So #7273 could improve this.

umm... JRuby build version on GitHub Actions is too old ``` jruby 9.4.0.0-SNAPSHOT (3.1.0) 2022-04-27 cefd578cef OpenJDK 64-Bit Server VM 11.0.16+8 on 11.0.16+8 [x86_64-linux] ``` https://github.com/rubocop/rubocop-ast/runs/7724638022?check_suite_focus=true#step:4:24

@eregon Do you have the next release date of [jruby-dev-builder ](https://github.com/ruby/jruby-dev-builder)?

That makes sense.

I cannot reproduce using jruby-1.7.22. What version of Java are you using?

I was debugging with -J-Djavax.net.debug=ssl option. - Gmail ; cipher is TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA - Mandrill ; cipher is SSL_RSA_EXPORT_WITH_DES40_CBC_SHA My Env ``` jruby 1.7.22 (1.9.3p551) 2015-08-20 c28f492 on Java HotSpot(TM) 64-Bit...

Workaround: using `smtp.enable_starttls_auto OpenSSL::SSL::SSLContext.new("TLSv1_2_client")`.

@headius Can I make some PRs for 3.2 features against the master branch? 9.4 branch does not exist yet, though.