src/java.base/share/classes/java/io/FileInputStream.java

*** 238,248 ****
       * @param b the data to be written
       * @param off the start offset in the data
       * @param len the number of bytes that are written
       * @exception IOException If an I/O error has occurred.
       */
!     private native int readBytes(byte b[], int off, int len) throws IOException;
  
      /**
       * Reads up to <code>b.length</code> bytes of data from this input
       * stream into an array of bytes. This method blocks until some input
       * is available.
--- 238,248 ----
       * @param b the data to be written
       * @param off the start offset in the data
       * @param len the number of bytes that are written
       * @exception IOException If an I/O error has occurred.
       */
!     private native int readBytes(byte[] b, int off, int len) throws IOException;
  
      /**
       * Reads up to <code>b.length</code> bytes of data from this input
       * stream into an array of bytes. This method blocks until some input
       * is available.
*** 251,261 ****
       * @return     the total number of bytes read into the buffer, or
       *             <code>-1</code> if there is no more data because the end of
       *             the file has been reached.
       * @exception  IOException  if an I/O error occurs.
       */
!     public int read(byte b[]) throws IOException {
          return readBytes(b, 0, b.length);
      }
  
      /**
       * Reads up to <code>len</code> bytes of data from this input stream
--- 251,261 ----
       * @return     the total number of bytes read into the buffer, or
       *             <code>-1</code> if there is no more data because the end of
       *             the file has been reached.
       * @exception  IOException  if an I/O error occurs.
       */
!     public int read(byte[] b) throws IOException {
          return readBytes(b, 0, b.length);
      }
  
      /**
       * Reads up to <code>len</code> bytes of data from this input stream
*** 273,283 ****
       * @exception  IndexOutOfBoundsException If <code>off</code> is negative,
       * <code>len</code> is negative, or <code>len</code> is greater than
       * <code>b.length - off</code>
       * @exception  IOException  if an I/O error occurs.
       */
!     public int read(byte b[], int off, int len) throws IOException {
          return readBytes(b, off, len);
      }
  
      /**
       * Skips over and discards <code>n</code> bytes of data from the
--- 273,283 ----
       * @exception  IndexOutOfBoundsException If <code>off</code> is negative,
       * <code>len</code> is negative, or <code>len</code> is greater than
       * <code>b.length - off</code>
       * @exception  IOException  if an I/O error occurs.
       */
!     public int read(byte[] b, int off, int len) throws IOException {
          return readBytes(b, off, len);
      }
  
      /**
       * Skips over and discards <code>n</code> bytes of data from the