Fix gradle error

[dnbit]

Problem
Gradle fails with the following error:

Gradle sync failed: Cannot access first() element from an empty List

Solution
This seems to be related a bintray-release issue that was resolved here.

Nevertheless the bintray-release used in the core project has not been updated. Using latest bintray-release version (0.4.0) solves the issue as expected.

[stefanhoth]

Can one of the admins review this PR?

[frapontillo]

Please test this.

[stefanhoth]

Can one of the admins review this PR?

[dnbit]

Sorry guys, can you elaborate on this?

[frapontillo]

@dnbit sorry, that was just a command to start the CI build 😄.
BTW it's weird, it doesn't crash on my machine. What task are you running?

[dnbit]

@frapontillo thanks for the clarification. I was a bit confused.

I just wanted to try the library and a normal build/make project failed with the message I mentioned above. As I found that it was an old issue in bintray-release I updated it in the corresponding build.gradle file and, after sync, it built successfully. That's all.

[frapontillo]

Cool, no problem!
Just so we're clear, it was only a temporary issue, right?

[dnbit]

@frapontillo
If you do a fresh checkout and stuck to the old gradle version that is given, the project compiles without an issue.

If you update the gradle version the project does not compile.

It seems reasonable to think that:

• It is expected that most users who check out the code will update their gradle version
• An update in the gradle version should not stop the code from compiling
• A user who checks out the code and see it does not compile is a sad user 😢
• A closed PR is likely to be abandon and forgotten

[ouchadam]

really sorry about this @dnbit totally our fault! the ci node that this pr was being checked against was using JDK7. Thanks for the changes, I'll make a note to update all our other library projects

[stefanhoth]

Can one of the admins review this PR?