Fix OSX setup

[hadim]

Ping @KeyWeeUsr.

In the OSX if statement JRE_HOME is not defined.

[KeyWeeUsr]

@hadim Could you also add a travis build for OSX with java 8 and java 9+? You can check the matrix at plyer .travis.yml.

[hadim]

Sorry but I don't have an osx machine so it's complicated for me to test.

Only the osx/Java 8 builds are failing: https://travis-ci.org/kivy/pyjnius/jobs/459157377

Could you take care of it from here?

[KeyWeeUsr]

To test it quickly you can temporarily remove linux from the matrix and various python versions e.g. just keep osx 2.7 and 3.7 for java 8 and java 9. What I think is happening is this: #304 (comment) i.e. a missing jre folder for Java 8. If you do ls -lah for particular folders in the CI job, you'll get there :)

[hadim]

I am already working on the conda forge feedstock. Could you take care of this one?

[hadim]

The Allow edits from maintainers. box is checked.

[hadim]

@KeyWeeUsr I have disabled Java 8/OSX build on Travis. Can you merge and I'll try to submit a new PR later this week if you cannot do it?

[KeyWeeUsr]

I took a look at it and I believe https://github.com/kivy/pyjnius/pull/364/files#diff-2eeaed663bd0d25b7e608891384b7298R124 is the mistake in here if you use conda. I have no experience with conda, so you'll have more luck with it, since the original fix is yours. You might try to install Java 8 the ordinary way, without conda.

Edit: Java 8 definitely has the jre folder and it's missing, therefore the check for path appears to be wrong.

[KeyWeeUsr]

The builds are all green! Thank you for the fix :-)

[hadim]

Yes finally. Hope you'll release a new version soon!