/**
     * Disconnect the transport
     * 
     * @param hard
     * @param inUse
     *            whether the caller is holding a usage reference on the transport
     * @return whether conenction was in use
     * @throws IOException
     */
    public synchronized boolean disconnect ( boolean hard, boolean inUse ) throws IOException {
        IOException ioe = null;

        switch ( this.state ) {

                }
            }
        }
    }


    protected void initProtocolVersions ( String minStr, String maxStr ) {
        DialectVersion min = ( minStr != null && !minStr.isEmpty() ) ? DialectVersion.valueOf(minStr) : null;
        DialectVersion max = ( maxStr != null && !maxStr.isEmpty() ) ? DialectVersion.valueOf(maxStr) : null;
        initProtocolVersions(min, max);
    }

     * 
     * @return maximum number of retries for netbios requests
     */
    int getNetbiosRetryCount ();


    /**
     * 
     * 
     * Property <tt>jcifs.netbios.cachePolicy</tt> in minutes (int, default 600)
     * 
     * @return netbios cache timeout, in seconds, 0 - disable caching, -1 - cache forever
     */
    int getNetbiosCachePolicy ();


    /**
     * 

            try {
                inUse |= conn.disconnect(false, false);
            }
            catch ( IOException e ) {
                log.warn("Failed to close connection", e);
            }
        }
        synchronized ( this.connections ) {
            cleanup();
        }
        return inUse;
    }


    @Override

                }

                this.netbiosName = null;

                synchronized ( this.trees ) {
                    long us = this.usageCount.get();
                    if ( ( inUse && us != 1 ) || ( !inUse && us > 0 ) ) {
                        log.warn("Logging off session while still in use " + this + ":" + this.trees);
                        wasInUse = true;
                    }