CLOUDSTACK-10012: Upgrade Jetty to 9.3.x

[yadvr]

Upgrades Jetty to Java8 compatible version

Pinging for review @marcaurele @nvazquez @borisstoyanov @DaanHoogland @wido and others

@blueorangutan package

[blueorangutan]

@rhtyd a Jenkins job has been kicked to build packages. I'll keep you posted as I make progress.

[blueorangutan]

Packaging result: ✖centos6 ✔centos7 ✔debian. JID-1260

[wido]

What would be the easiest way to test? Just create a DEB and run it?

[marcaurele]

@wido The problem upgrading to jetty 9.3 or 9.4 is the wiremock dependency which forces the use of jetty 9.2. The dependency is only used by cloudian module. I was looking to push an upgrade to 9.4 along with the new gzip handler and a context redirect. I haven't found the time to find a solution for the wiremock dependency.

• Build additional artefact for Java 8+, Jetty 9.3 and HTTP/2 wiremock/wiremock#407
• Upgrade to jetty 9.4 and in the process java 8 wiremock/wiremock#644
• https://groups.google.com/forum/#!topic/wiremock-user/0W600q57pl0

[yadvr]

@wido yes, building a package and testing that management server works as expected is a valid regression test.
Thanks @marcaurele -- last time I tried using Jetty 9.4.x, I faced issues around server configuration which is why I dropped to using 9.2.x for the fatjar PR. The wiremock stuff is used only for writing unit tests for the cloudian plugin, I don't see how they are related to Jetty/running mgmt server. I'll close this PR in favour of your PR #2329, thanks.

[blueorangutan]

@rhtyd a Jenkins job has been kicked to build packages. I'll keep you posted as I make progress.

[blueorangutan]

Packaging result: ✔centos6 ✔centos7 ✖debian. JID-1261