List<String> Spieler = new ArrayList<String>();

       ResultSet rs = MySQL.getResult("SELECT * FROM reports SET UUID'" + uuid + "'");

       try {

           while(rs.next()) {

             Bukkit.getConsoleSender().sendMessage(rs.getString("UUID"));

             Spieler.add(rs.getString("UUID"));

           }

       } catch (SQLException e) {

           e.printStackTrace();

       }

       return Spieler;
}

  So müsste es gehen

...zur Antwort