Commands { public static <T> void execution(CommandNode<T> command, Command<T> execution) { COMMAND.set(command, execution); }  static void execution(CommandNode<T> command, Command<T> execution); static CommandNode<T> remove(CommandNode<T> command, String child);  }
@Test void execution() { Commands.execution(literal, execution); assertSame(execution, literal.getCommand()); }