nomisge [1] filed a deletion request for javafx-gluon-scenebuilder [2]:

This package is orphaned and supplies the same software as javafx8-scenebuilder package. It can thus be removed.

[1] https://aur.archlinux.org/account/nomisge/ [2] https://aur.archlinux.org/pkgbase/javafx-gluon-scenebuilder/