Gradle Wrapper

November 19, 2025 · View on GitHub

This directory contains the Gradle wrapper files for the Apache Kafka project.

Upgrading Gradle version

When upgrading the Gradle version used by the Kafka project, update the following files in order:

Update Gradle version in gradle/dependencies.gradle:
```
gradle: "9.2.0"
```
Update wrapper JAR checksum in wrapper.gradle:
- Find the Wrapper JAR Checksum at https://gradle.org/release-checksums/
- Update the wrapperChecksum variable:
```
task bootstrapWrapper() {
    // ... (other code)
    doLast {
        // ... (other code)
        String wrapperChecksum = "<wrapper-jar-sha256-checksum>"
        // ...
    }
}
```
- Verify the wrapper JAR URL is accessible at: https://raw.githubusercontent.com/gradle/gradle/v<gradle-version>/gradle/wrapper/gradle-wrapper.jar
Regenerate the gradle/wrapper/gradle-wrapper.properties and the wrapper script:
- Find the Binary-only (-bin) ZIP Checksum for the binary distribution at https://gradle.org/release-checksums/
```
./gradlew wrapper --gradle-version <gradle-version> \
--distribution-type bin \
--gradle-distribution-sha256-sum <binary-distribution-checksum>
```

After upgrading, verify the Gradle version:

./gradlew --version