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Thread: empty response received

  1. #1
    Junior Member
    Join Date
    Sep 2010
    Thanked 0 Times in 0 Posts

    Default empty response received

    Hi Nikita Rybak,

    I am facing similar problem. from my application, i am sending GET request for an xml file to a UPNP device(a router). But response which is a INputStream is of size 0.

    Code used is:
    URLConnection uc = descriptionURL.openConnection();
    		    	if (uc instanceof HttpURLConnection) {
    	                HttpURLConnection huc = (HttpURLConnection)uc;
    	                int statusCode = huc.getResponseCode();
    	                String statusMsg = huc.getResponseMessage();
    	                 if (logger.isDebugEnabled()) {
    	                    logger.debug("code="+statusCode+" msg="+statusMsg);
    	                    int i = 1;
    	                    String name = uc.getHeaderFieldKey(i);
    	                    while (name != null) {
    	                        if (logger.isDebugEnabled()) {
    	                            logger.debug("   " + name + ": " + uc.getHeaderField(name));
    	                        name = uc.getHeaderFieldKey(++i);
    	                if (statusCode != 200) {
    	                    throw new IOException("code="+statusCode+" msg="+statusMsg);
    	            } // end if
    	        	documentStream = uc.getInputStream();

    received InputStream size is 0 here. And headerInfo received is:
    code=200 msg=OK
    875247 [t Delivery Queue] DEBUG DeviceParser - CONTENT-LENGTH: 6263
    875247 [t Delivery Queue] DEBUG DeviceParser - CONTENT-TYPE: text/xml; charset="utf-8"
    875247 [t Delivery Queue] DEBUG DeviceParser - LAST-MODIFIED: Wed, 01 Jan 2003 01:01:18 GMT
    875247 [t Delivery Queue] DEBUG DeviceParser - DATE: Wed, 01 Jan 2003 01:01:18 GMT
    875247 [t Delivery Queue] DEBUG DeviceParser - SERVER: OpenRG/ UPnP/1.0 SAGEM_LB/RG_VERSION
    875257 [t Delivery Queue] DEBUG DeviceParser - CONNECTION: close
    875257 [t Delivery Queue] INFO DeviceParser - documentStream : espial.net.misc.c@5dbaf9b size=0

    Please let me know you have any workaround or solution or reason for the same. port at which my application listen response, is getting valid xml. But this response is not recieved at application layer.

    Your help is most appreciated.


  2. #2
    Member Darryl.Burke's Avatar
    Join Date
    Mar 2010
    Madgaon, Goa, India
    Thanked 48 Times in 46 Posts

    Default Re: empty response received

    Cross posted
    empty response received - Java Forums

    And who's Nikita Rybak?


    java.net Forums : empty response received ...
    java.net Forums : empty response received ...

    empty response received (Sockets and Internet Protocols forum at JavaRanch) (and two other threads locked there)

    But I still don't know who Nikita Rybak is :-\

    empty response received | Java.net

    empty response received | Java.net
    (resolved) empty response body in ajax (or 206 Partial Content) - Stack Overflow

    And now I know where the "Nikita Rybek" came from
    Last edited by Darryl.Burke; September 16th, 2010 at 06:09 PM. Reason: Found two more cross posts

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