@ Override public synchronized long skip ( final long n ) throws IOException { if ( n == 0 ) { return 0 ; } if ( n < 0 || this . currentAbsoluteReadPosition + n > this . streamLength ) { throw new IndexOutOfBoundsException ( ) ; } this . validateFileMd5 = false ; this . md5Digest = null ; this . reposition ( this . currentAbsoluteReadPosition + n ) ; return n ; }
Skips over and discards n bytes of data from this input stream . The skip method may for a variety of reasons end up skipping over some smaller number of bytes possibly 0 . This may result from any of a number of conditions ; reaching end of file before n bytes have been skipped is only one possibility . The actual number of bytes skipped is returned . If n is negative no bytes are skipped .