I've add the Java.tmbundle and Scala.tmbundle to ~/Library/Application Support/Avian/Pristine Copy/Bundles but they won't show in Textmate 2. Oddly the groovy.tmbundle added in the same manner works as expected.
What could be wrong here? The permissions look OK. The bundles show a check next to them in Preferences, but they have no listing under the Actions menu.