310     /**
 311      * Writes the specified byte to this file output stream. Implements
 312      * the <code>write</code> method of <code>OutputStream</code>.
 313      *
 314      * @param      b   the byte to be written.
 315      * @exception  IOException  if an I/O error occurs.
 316      */
 317     public void write(int b) throws IOException {
 318         write(b, fdAccess.getAppend(fd));
 319     }
 320 
 321     /**
 322      * Writes a sub array as a sequence of bytes.
 323      * @param b the data to be written
 324      * @param off the start offset in the data
 325      * @param len the number of bytes that are written
 326      * @param append {@code true} to first advance the position to the
 327      *     end of file
 328      * @exception IOException If an I/O error has occurred.
 329      */
 330     private native void writeBytes(byte b[], int off, int len, boolean append)
 331         throws IOException;
 332 
 333     /**
 334      * Writes <code>b.length</code> bytes from the specified byte array
 335      * to this file output stream.
 336      *
 337      * @param      b   the data.
 338      * @exception  IOException  if an I/O error occurs.
 339      */
 340     public void write(byte b[]) throws IOException {
 341         writeBytes(b, 0, b.length, fdAccess.getAppend(fd));
 342     }
 343 
 344     /**
 345      * Writes <code>len</code> bytes from the specified byte array
 346      * starting at offset <code>off</code> to this file output stream.
 347      *
 348      * @param      b     the data.
 349      * @param      off   the start offset in the data.
 350      * @param      len   the number of bytes to write.
 351      * @exception  IOException  if an I/O error occurs.
 352      */
 353     public void write(byte b[], int off, int len) throws IOException {
 354         writeBytes(b, off, len, fdAccess.getAppend(fd));
 355     }
 356 
 357     /**
 358      * Closes this file output stream and releases any system resources
 359      * associated with this stream. This file output stream may no longer
 360      * be used for writing bytes.
 361      *
 362      * <p> If this stream has an associated channel then the channel is closed
 363      * as well.
 364      *
 365      * @apiNote
 366      * Overriding {@link #close} to perform cleanup actions is reliable
 367      * only when called directly or when called by try-with-resources.
 368      * Do not depend on finalization to invoke {@code close};
 369      * finalization is not reliable and is deprecated.
 370      * If cleanup of native resources is needed, other mechanisms such as
 371      * {@linkplain java.lang.ref.Cleaner} should be used.
 372      *
 373      * @exception  IOException  if an I/O error occurs.

 310     /**
 311      * Writes the specified byte to this file output stream. Implements
 312      * the <code>write</code> method of <code>OutputStream</code>.
 313      *
 314      * @param      b   the byte to be written.
 315      * @exception  IOException  if an I/O error occurs.
 316      */
 317     public void write(int b) throws IOException {
 318         write(b, fdAccess.getAppend(fd));
 319     }
 320 
 321     /**
 322      * Writes a sub array as a sequence of bytes.
 323      * @param b the data to be written
 324      * @param off the start offset in the data
 325      * @param len the number of bytes that are written
 326      * @param append {@code true} to first advance the position to the
 327      *     end of file
 328      * @exception IOException If an I/O error has occurred.
 329      */
 330     private native void writeBytes(byte[] b, int off, int len, boolean append)
 331         throws IOException;
 332 
 333     /**
 334      * Writes <code>b.length</code> bytes from the specified byte array
 335      * to this file output stream.
 336      *
 337      * @param      b   the data.
 338      * @exception  IOException  if an I/O error occurs.
 339      */
 340     public void write(byte[] b) throws IOException {
 341         writeBytes(b, 0, b.length, fdAccess.getAppend(fd));
 342     }
 343 
 344     /**
 345      * Writes <code>len</code> bytes from the specified byte array
 346      * starting at offset <code>off</code> to this file output stream.
 347      *
 348      * @param      b     the data.
 349      * @param      off   the start offset in the data.
 350      * @param      len   the number of bytes to write.
 351      * @exception  IOException  if an I/O error occurs.
 352      */
 353     public void write(byte[] b, int off, int len) throws IOException {
 354         writeBytes(b, off, len, fdAccess.getAppend(fd));
 355     }
 356 
 357     /**
 358      * Closes this file output stream and releases any system resources
 359      * associated with this stream. This file output stream may no longer
 360      * be used for writing bytes.
 361      *
 362      * <p> If this stream has an associated channel then the channel is closed
 363      * as well.
 364      *
 365      * @apiNote
 366      * Overriding {@link #close} to perform cleanup actions is reliable
 367      * only when called directly or when called by try-with-resources.
 368      * Do not depend on finalization to invoke {@code close};
 369      * finalization is not reliable and is deprecated.
 370      * If cleanup of native resources is needed, other mechanisms such as
 371      * {@linkplain java.lang.ref.Cleaner} should be used.
 372      *
 373      * @exception  IOException  if an I/O error occurs.