Evenprime/Bukkit — comment on commit 1aafa6cdc3385b4a644e87a00be6b4f1f6e494ff
File: src/main/java/org/bukkit/permissions/PermissibleBase.java line 109
By Evenprime:

The "result.setPermission(name, value); already calls "recalculatePermissions();" Doing it again is nothing but lots of wasted CPU cycles