Generic cleanup of warnings, whitespace and style.

By: Erik Broes <erikbroes@grum.nl>

paper-api/src/main/java/org/bukkit/Bukkit.java

@@ -258,7 +258,7 @@ public final class Bukkit {
     public static void unbanIP(String address) {
         server.unbanIP(address);
     }
-    
+
     public static Set<OfflinePlayer> getBannedPlayers() {
         return server.getBannedPlayers();
     }