Selector opened on line 64 in never closed

[larsmaes]

The Selecotr that is opened on line 64 in never closed. This will eventually cause a "Too many files open" Exception.

[chrisinmtown]

Suggest replacing the existing close() method with the following:

    /**
     * The OutputStream passed to Expect constructor is closed; the InputStream
     * is not closed (there is no need to close the InputStream).<br>
     * It is suggested that this method be called after the InputStream has come
     * to EOF. For example, when you connect through SSH, send an "exit" command
     * first, and then call this method.<br>
     * <br>
     * 
     * When this method is called, the thread which write to the sink of the
     * pipe will end.
     */
    public void close() {
        try {
            this.output.close();
        } catch (IOException e) {
            log.warn("Exception when closing OutputStream", e);
            //e.printStackTrace();
        }
        try {
            this.inputChannel.close();
        } catch (IOException e) {
            log.warn("Exception when closing input Channel", e);
            //e.printStackTrace();
        }
        try {
            this.selector.close();
        } catch (IOException e) {
            log.warn("Exception when closing selector", e);
        }
    }