Old Gradle version can't find Java 11

[jhasse]

[REQUIRED] Please fill in the following fields:

• Pre-built SDK from the website or open-source from this repo: open-source
• Firebase C++ SDK version: b09efc2
• Problematic Firebase Component: Android
• Other Firebase Components in use: _____ (Auth, Database, etc.)
• Platform you are using the C++ SDK on: Linux
• Platform you are targeting: Android

[REQUIRED] Please describe the issue here:

I'm trying to build the Android SDK from source. I'm using Fedora 33 with OpenJDK 11.0.9.1. Running the gradle wrapper doesn't work (no matter the target):

$ ./gradlew :admob:assembleRelease

FAILURE: Build failed with an exception.

* What went wrong:
Could not determine java version from '11.0.9.1'.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

Steps to reproduce:

Have you been able to reproduce this issue with just the Firebase C++ quickstarts ? no
What's the issue repro rate? 100%

What happened? How can we make the problem occur?
See above.

This would be fixed by updating to a newer Gradle version.

[google-oss-bot]

I couldn't figure out how to label this issue, so I've labeled it for a human to triage. Hang tight.

[alexames]

Hi @jhasse, I'll look into this and see if I can get a fix checked in. In the meantime, someone on you can try some of the suggestions from stack overflow as a stopgap.