问为什么Java11将写字节(byte[] b)方法添加到ByteArrayOutputStream类中，而写​(byte[] b)方法也是这样做的？

EN

  public void write(byte b[]) throws IOException {
       write(b, 0, b.length);
  }

  public void write(byte b[], int off, int len) throws IOException {
     Objects.checkFromIndexSize(off, len, b.length);
     for (int i = 0 ; i < len ; i++) {
         write(b[off + i]);
     }
  }
  public abstract void write(int b) throws IOException;

public void writeBytes(byte b[]) {
     write(b, 0, b.length);
}
public synchronized void write(byte b[], int off, int len) {
    Objects.checkFromIndexSize(off, len, b.length);
    ensureCapacity(count + len);
    System.arraycopy(b, off, buf, count, len);
    count += len;
}