Moving to JDK 11?

Summary: I see this warning in the console, so maybe we should consider moving to JDK 11+

warning: Current JDK version 1.8.0_312-b07 has a bug (https://bugs.openjdk.java.net/browse/JDK-8007720) that prevents Room from being incremental. Consider using JDK 11+ or the embedded JDK shipped with Android Studio 3.5+.

Would you like to work on the issue? No

[psh]

I did a quick check of my machine -

$ ./gradlew --version

------------------------------------------------------------
Gradle 6.9
------------------------------------------------------------

Build time:   2021-05-07 07:28:53 UTC
Revision:     afe2e24ababc7b0213ccffff44970aa18035fc0e

Kotlin:       1.4.20
Groovy:       2.5.12
Ant:          Apache Ant(TM) version 1.10.9 compiled on September 27 2020
JVM:          11.0.13 (Amazon.com Inc. 11.0.13+8-LTS)
OS:           Mac OS X 12.2.1 x86_64

We declare version 1.5.20 of Kotlin for our code, and

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }

Overall the project builds just fine for me, using Android Studio “BumbleBee”, running on JDK 11 isnt a problem. We could stand to update the gradle version and the Kotlin version though, and spend some effort in moving the codebase off Java and over to Kotlin. 😃

[misaochan]

Good idea. I would request that the person submitting the PR also do a brief test of the app’s functionality and report on that in the PR.