How to upgrade the Gradle version

Visit the Gradle website and decide the:

desired version
desired distribution type
what is the sha256 for the version and type chosen above

Adjust the following command with tha arguments above and execute it twice:

$ ./gradlew wrapper --gradle-version 7.5 \
    --distribution-type bin \
    --gradle-distribution-sha256-sum cb87f222c5585bd46838ad4db78463a5c5f3d336e5e2b98dc7c0c586527351c2

The first execution should automatically update:

java-examples/gradle/wrapper/gradle-wrapper.properties

The second execution should then update:

java-examples/gradle/wrapper/gradle-wrapper.jar
java-examples/gradlew
java-examples/gradlew.bat

The four updated files are ready to be committed.