Evenprime/Bukkit — comment on commit 1aafa6cdc3385b4a644e87a00be6b4f1f6e494ff
File: src/main/java/org/bukkit/permissions/PermissionAttachment.java line 130
By Evenprime:

Same as with "setPermission(...)". By going directly to the map we save one unnecessary "recalculatePermissions()" call.