private long skipInputBytes(long n) throws IOException {
  cbLock.lock();
  try {
    return iis.skipBytes(n);
  }
  finally {
    cbLock.unlock();
  }
}

private long skipInputBytes ( long n ) throws IOException { cbLock . lock ( ) ; try { return iis . skipBytes ( n ) ; } finally { cbLock . unlock ( ) ; } }
this method is called from the native code in order to skip requested number of bytes in the input stream .
