A Java version between 8 and 14 is required to execute Gradle. Java 15 and later versions are not yet supported.
Java 6 and 7 can still be used for compilation and forked test execution.
Any supported version of Java can be used for compile or test.
Gradle is tested with Kotlin 1.3.21 through 1.3.70.
Gradle is tested with Groovy 1.5.8 through 2.5.10.
Gradle is tested with Android Gradle Plugin 3.4, 3.5 and 3.6.