Editora 0.18.0. Archived, so links from that release keep working. Read the 0.18.5 page →
Debug: Debug Main Class…
debug.mainClass Pick and debug a main class in the active file's Maven or Gradle project.
How to run it
Open the command palette (M-x in the Emacs keymap) and search for Debug: Debug Main Class…, then press Enter. It has no default keybinding, but you can bind one in Settings → Keymaps.