if ( log.isDebugEnabled() ) {
                                log.debug("Transport still in use, no idle timeout " + this);
                            }
                            // notify, so that callers with timed-out requests can handle them
                            for ( Response response : this.response_map.values() ) {
                                synchronized ( response ) {

    // create options
    static final int FILE_WRITE_THROUGH           = 0x00000002;
    static final int FILE_SEQUENTIAL_ONLY         = 0x00000004;
    static final int FILE_SYNCHRONOUS_IO_ALERT    = 0x00000010;
    static final int FILE_SYNCHRONOUS_IO_NONALERT = 0x00000020;

    // security flags
    static final int SECURITY_CONTEXT_TRACKING = 0x01;
    static final int SECURITY_EFFECTIVE_ONLY   = 0x02;

    /**
     * 
     */
    public static final int FILE_NO_IMTERMEDIATE_BUFFERING = 0x8;
    /**
     * 
     */
    public static final int FILE_SYNCHRONOUS_IO_ALERT = 0x10;
    /**
     * 
     */
    public static final int FILE_SYNCHRONOUS_IO_NONALERT = 0x20;
    /**
     * 
     */
    public static final int FILE_NON_DIRECTORY_FILE = 0x40;
    /**
     * 

    static final int FILE_OVERWRITE_IF = 0x5;

    // create options
    static final int FILE_WRITE_THROUGH = 0x00000002;
    static final int FILE_SEQUENTIAL_ONLY = 0x00000004;
    static final int FILE_SYNCHRONOUS_IO_ALERT = 0x00000010;
    static final int FILE_SYNCHRONOUS_IO_NONALERT = 0x00000020;

    // security flags
    static final int SECURITY_CONTEXT_TRACKING = 0x01;
    static final int SECURITY_EFFECTIVE_ONLY = 0x02;

                }
                else if ( last == null ) {
                    // don't have enough credits/space for the first request, block until available
                    // for space there is nothing we can do, callers need to make sure that a single message fits

                    try {
                        long timeout = getResponseTimeout(chain);
                        if ( params.contains(RequestParam.NO_TIMEOUT) ) {