JDK9 为何要将 String 的底层实现由 char[] 改成了 byte[] ?

String name = "jack";

String name = "程序员老鬼";

/** * The identifier of the encoding used to encode the bytes in * {@code value}. The supported values in this implementation are * * LATIN1 * UTF16 * * @implNote This field is trusted by the VM, and is a subject to * constant folding if String instance is constant. Overwriting this * field after construction will cause problems. */private final byte coder;