Adds foojay resolver plugin, which should download the version of Java specified in build.gradle if that version isn't currently available on the system being used
Updates the version of Java to v21, which is the latest LTS version as of this writing.
Adding the foojay plugin that downloads the correct version if it's not on the system generates a bunch of warnings when you run Gradle as it looks for the "right" version of Java. This adds a note telling the students that they can safely ignore these.
Fixes a deprecation warning introduced by upgrading Gradle to v8.5.
foojayresolver plugin, which should download the version of Java specified inbuild.gradleif that version isn't currently available on the system being usedfoojayplugin that downloads the correct version if it's not on the system generates a bunch of warnings when you run Gradle as it looks for the "right" version of Java. This adds a note telling the students that they can safely ignore these.Fixes #111 Fixes #113