Java 9 support

[md5]

In an email exchange today with one of the Jetty developers, I was told that Jetty 9.3 will be tracking Java 9 to take advantage of its built-in support for ALPN.

It doesn't look like openjdk-9-* packages for Debian Sid are even a glimmer in anyone's eye yet, so perhaps this would be the time to start to exploring compilation from source.

Based on the comments in the Dockerfile, it looks like the objections to doing a source build revolved around the need to install a bootstrap JDK and Oracle's licensing. It looks like installing a boostrap JDK is still a requirement in the current jdk9 build (cf. http://hg.openjdk.java.net/build-infra/jdk9/file/50da9851d248/README-builds.html#l352).

[tianon]

There's https://bugs.debian.org/751519, but it was shot down for openjdk-8 being available; no idea WTF that's about. 😕

[md5]

Yeah, that's a bit odd. Perhaps it makes more sense to someone more involved in the Debian Java community.

I started looking into the situation a bit more and it looks like they only want to have a single default JDK per Debian release, so openjdk-9 will presumably not be available until Debian 10...

[md5]

I think "NEW" is this: https://wiki.debian.org/NewQueue

And from my reading it looks like they don't want openjdk-9 in "NEW" until openjdk-8 is out of it. And I think openjdk-8 moving out of "NEW" may be dependent on this: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=760984

So it seems that openjdk-8 will likely be part of Debian 9/Stretch, at which point openjdk-9 can go into Sid and later Debian 10/Buster.

[tianon]

The fact that an "openjdk-8" package is available for installing means it's moved out of NEW already. 😞

[tianon]

And looking at https://packages.debian.org/sid/openjdk-8-jdk, it's clear it's not available in Jessie, which means they must be targeting Stretch.

[md5]

There's currently a thread on debian-java about the plans for Java in Stretch: https://lists.debian.org/debian-java/2015/04/msg00082.html

[tianon]

Wow, even adding "Ensure our openjdk-8 package passes the TCK"; they're definitely getting ambitious! (cc @jpetazzo)

[jpetazzo]

Indeed! I hope this'll also make @giltene happier with the current state of Java-on-Docker :-)

[tianon]

This was fixed in #55. 👍

[md5]

@tianon For some reason I missed this last month, but I thought I'd check if you guys have an ETA or any expectations for an Alpine variant for OpenJDK 9.

[md5]

It looks like I commented on the PR itself back in November 2015 though 😕

[tianon]

As soon as https://pkgs.alpinelinux.org/packages?name=openjdk9* returns something (ie, there's an Alpine package for it), so can't actually say for certain. 😞