Changing the Java SDK path in Android SDK settings doesn't change environment variables, and thus doesn't take immediate effect

1. Install Creator on a machine that doesn't have java installed.
2. Install the Android SDK parts from the device settings.
3. Install Java 19.
4. Build an Android project.
5. Gradle will fail, complaining about class file major version 63.
6. Install Java 18, go to the device settings and change the Java SDK path to point to Java 18 instead of 19.
7. Build again. You'll notice that Gradle will still fail.
8. JAVA_HOME still points to Java 19.

I worked around this problem by first nuking the Java 19 installation, and when that didn't help, I exited and started Creator. Then it picked up the right Java version.