Java 21
Provides the JVM used for Android and Gradle build processes.
Android foundation
J21Available now
Android JDK 21
Java 21 and javac runtime used by VauCode's Android and Gradle-based build workflows.
javac
Java compiler readiness is tracked by the Android toolchain runtime.
React Native reuse
Current React Native builds reuse VauCode's JDK 21 instead of provisioning a duplicate JDK 17.
Commands
Use it from VauCode
java -versionInspect the Java runtime version.
javac -versionInspect the Java compiler.
Current source
Implementation details
Toolchain Setup exposes Android JDK 21 as a managed install.
Android SDK installation is gated until JDK readiness is true.
Recent VauCode source patches React Native Gradle requirements to reuse JDK 21 while preserving Java 17 bytecode compatibility targets.
Toolchain directory