Travis-ci: added support for ppc64le

[sanjaymsh]

Hi,
I have added support for ppc64le build on travis-ci in the branch . The travis-ci build log can be tracked on the link :https://travis-ci.com/github/sanjaymsh/jax-maven-plugin/builds/191893530 . I believe it is ready for the final review and merge.
Please have a look on it.

Thanks !!

[davidmoten]

Why don't we just remove oraclejdk8, oraclejdk9?

[davidmoten]

Can you tell me why you want to add support for ppc64le build? Was there doubt that it would build on that platform?

[sanjaymsh]

Hi @davidmoten Reason behind running tests on ppc64le: This package is included in the ppc64le versions of RHEL and Ubuntu - this allows the top of tree to be tested continuously as it is for Intel, making it easier to catch any possible regressions on ppc64le before the distros begin their clones and builds. This reduces the work in integrating this package into future versions of RHEL/Ubuntu. So it will be required.

Thanks !!

[sanjaymsh]

Why don't we just remove oraclejdk8, oraclejdk9?

Yes, we can remove it. Actually i also thought the same, But then thought that may be it will be required by the community, so let put it in allow_failures case. But the thing is , these 2 are almost EOL. So we can remove it.

Thanks !!

[sanjaymsh]

Done !!