Make it work also on JDK9 with new versioning scheme

[ctomc]

JDK9 comes with new versioning scheme that is defined in http://openjdk.java.net/jeps/223

This patch fixes the AbstractZipArchiver to work on JDK9 as well as older versions properly.

[Sanne]

Thanks for the quick merge @krosenvold !
Should I close issue #13 ? Sorry not familiar with the process.

I now opened this one as a follow up:

• https://issues.apache.org/jira/browse/MJAR-205

Would you be able to suggest if I need to open a bug on Maven too to then have that upgrade the plugins version?

[krosenvold]

I have a very short list of other issues to fix in plexus-archiver before making a release, shouldn't be too long. The update of default plugins normally happens when the jar plugin has been "in the wild" for a little time, you really dont need to create an issue for that

[Sanne]

thanks, good to know!

[krosenvold]

I'm sure you're aware of this, but just for the record: The moment plexus-archiver is released, it's trivial to do an upgrade of your local poms as described here:
http://blog.sonatype.com/2008/04/how-to-override-a-plugins-dependency-in-maven/#.VmrHQBrhBZo

[Sanne]

Yes, we're doing something like that ;)
But still would be nice to have a simpler way for the "masses". Probably not many testing Java 9 yet via Maven, but I hope it will become a good practice soon.

[krosenvold]

You're talking to a guy who deployed a production system with Java8 7 months before it was released :)

We're still relatively early in the JDK9 cycle, so I think it's fairly normal to expect a certain amount of kludges still (I mean, JDK9 is still not even feature complete!) At this point we'd normally prioritize getting the underlying libraries up to speed (like plexus-archiver) and release these, because then we can update all the higher level requirements. Normally they get released for other reasons fairly soon anyway.

[Sanne]

Hi @krosenvold , I see new Maven releases were published but the fix was not incorporated yet.
Could you please release an update and let the Maven team know?

I was notified today of several other people hitting this, and I see above testng and junit referencing this issue too.

[ctomc]

Just FYI, another workaround is to use much older version of plexus-archiver, 2.4.4 is the last one that doesn't have broken check in it.
But that is not always solution as some plugins are not compatible with older version.
our "hack" ctomc/wildfly-core@9636823