Http post large images

Question

Hello people ...
I've been working on this for almost a week
am trying to post an image and some text with it to my server
i know that i can post large images to an ASP.NET page .. but now am dealing with apache 2.2.3 and am using multipart post
I've tested this code using nokia devices and it is working fine
but on sony ericsoon devices " z520 and z610" it is giving 502 proxy error response ...
here is the client and server responses ....
WHAT IS WRONG WITH SONY ERICSSON DEVICES
any idea what is happening
here is my code
InputStream is = null;
        OutputStream os = null;
        DataInputStream dis = null;
        StringBuffer responseMessage = new StringBuffer();      
        StringBuffer b = new StringBuffer();
        HttpConnection c= null;
        try
            String message1 =  "-----------------------------2789938726602\r\n" +
                    "Content-Disposition: form-data; name=\"post[id]\"\r\n\r\n" +
                    "-----------------------------2789938726602\r\n" +
                    "Content-Disposition: form-data; name=\"post[title]\"\r\n\r\n" +
                    " bahjat\r\n" +
                    "-----------------------------2789938726602\r\n" +
                    "Content-Disposition: form-data; name=\"post[discription]\"\r\n\r\n" +
                    "Description\r\n" +
                    "-----------------------------2789938726602\r\n" +
                    "Content-Disposition: form-data; name=\"post[username]\"\r\n\r\n" +
                    "Username\r\n" +
                    "-----------------------------2789938726602\r\n" +
                    "Content-Disposition: form-data; name=\"post[password]\"\r\n\r\n" +
                    "Password\r\n" +
                    "-----------------------------2789938726602\r\n" +
                    "Content-Disposition: form-data; name=\"post[category_id]\"\r\n\r\n" +
                    "1\r\n" +
                    "-----------------------------2789938726602\r\n" +
                    "Content-Disposition: form-data; name=\"post[file]\"; filename=\"mobile.jpg\"\r\n" +
                    "Content-Type: image/jpeg\r\n\r\n";
             String message2 ="-----------------------------2789938726602--"; 
             byte[] Message1 = message1.getBytes();
             byte[] Message2 = message2.getBytes();
             int total_length = Message1.length + Message2.length + postByte.length ;
            c = (HttpConnection) Connector.open(URL, Connector.READ_WRITE);
            c.setRequestMethod(HttpConnection.POST);
            c.setRequestProperty("Host","hq.d1g.com")  ;
            c.setRequestProperty("Accept"," text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5");
            c.setRequestProperty("Accept-Charset"," ISO-8859-1,utf-8;q=0.7,*;q=0.7");
            c.setRequestProperty("User-Agent", "Profile/MIDP-2.0 Confirguration/CLDC-1.0");
            c.setRequestProperty("Accept-Encoding", "gzip, deflate");
            c.setRequestProperty("Accept-Language","en-us,en;q=0.5");
            c.setRequestProperty("Http-version","HTTP/1.1");
            c.setRequestProperty("Content-Type", "multipart/form-data;boundary=---------------------------2789938726602");
            c.setRequestProperty("Content-Length", Integer.toString(total_length) ); 
            c.setRequestProperty("Keep-Alive","300");
            c.setRequestProperty("Connection","Keep-Alive");
            os = c.openOutputStream();  
            os.write(Message1);
            os.write(postByte);
            os.write(Message2);          
            os.close();
            Message1 = null;
            Message2 = null;
           int rc = c.getResponseCode();
           if (rc != HttpConnection.HTTP_OK) {
                b.append("Response Code: " + c.getResponseCode() + "\n");
                b.append("Response Message: " + c.getResponseMessage() +
                        "\n\n");        
           Resived_String=b.toString();
           is = c.openInputStream() ;
            // retrieve the response from server
           int ch;
           while( ( ch = is.read() ) != -1 )
                responseMessage.append( (char)ch );
           String s=responseMessage.toString();
           Resived_String+=s;
        catch (Exception ce) {
            Resived_String=ce.getMessage(); }
        finally {
            if(dis != null)
                dis.close();
            if (is != null)
                is.close();
            if (os != null)
                os.close();
        return Resived_String;here is the headers as i followed them using wireshark
client
POST /gallery/post/update HTTP/1.1
Host: hq.d1g.com
Accept: text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
User-Agent: Profile/MIDP-2.0 Confirguration/CLDC-1.0
Accept-Encoding: gzip, deflate
Accept-Language: en-us,en;q=0.5
Http-version: HTTP/1.1
Content-Type: multipart/form-data;boundary=---------------------------2789938726602
Keep-Alive: 300
Connection: Keep-Alive
User-Agent: UNTRUSTED/1.0
Transfer-Encoding: chunked
server response
HTTP/1.1 502 Proxy Error
Date: Wed, 04 Apr 2007 12:49:40 GMT
Content-Length: 493
Connection: close
Content-Type: text/html; charset=iso-8859-1
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>502 Proxy Error</title>
</head><body>
Proxy Error
The proxy server received an invalid response from an upstream server.
The proxy server could not handle the request POST /gallery/post/update.
Reason: Error reading from remote server
<hr>
<address>Apache/2.2.3 (Fedora) Server at hq.d1g.com Port 80</address>
</body></html>
and some times i get this response
404 not found
so any idea what i can do

Answer 1

Thank your reply,and I think there are some bad with code,but there is only
a swc,and I can't analyze the c/c++ code,so I relly don't konw how to solve
it, Can you provide me some c/c++ code,and I can compile them to Alchemy
code...
2009/10/28 zazzo9 <[email protected]>
It is either a bug with your code or with the library, which may be
aggravated by a bug in alchemy where it fails to report exhausted memory
properly.  The library you are using is just a demonstration and may likely
have bugs.
>