java - Android - GET Request using Https failing - not sure why -

good afternoon,

i have been making http , post requests various websites using android's httpurlconnection object few weeks , have had no problems in doing until now.

i have been required make request server using https rather http.

i presumed needed change object in use httpsurlconnection object instead in order access page.

i can verify able access page both desktop , mobile browsers. output of page text - list of items in plain text format (generated php on server).

but when try , download information using android app io exception error @ point specified below (see code block below).

the code snippet below run in different thread. manages connect , set connection parameters, upon trying open input stream fails.

unfortunately error message doesn't mean lot me. contains url of website no other information.

my thoughts either:

a) i'm missing when connecting using https - tips here great. b) website doing different other http based websites i've connected in past - not unlikely because of nature of particular website. suggestions here possibilities stopping request getting through.

yet tried: i'm planning on trying connect request alternative location using few different techniques make sure it's not i'm doing in java code.

hope clear.

thanks, matt

 @override     public void run()      {     string response = null;     url url;     try     {         url = new url(urlstr);         httpsurlconnection con;         try         {             con = (httpsurlconnection) url.openconnection();             try              {                 con.setrequestmethod("get");                 con.setreadtimeout(10000);                 con.setconnecttimeout(3000);                 con.setrequestproperty("user-agent", "mozilla/5.0");                 //this fall on - after line....it raises ioexception - see below details.                 bufferedreader in = new bufferedreader(new inputstreamreader(con.getinputstream()));                  while(true)                 {                     int ch = in.read();                     if(ch==-1)                     {                         break;                     }                     response = response + character.tostring((char) ch);                 }                 in.close();             }              catch (protocolexception e)              {             }         }          catch (ioexception e)         {             //io exception raised.  error message (e.getmessage()) url string...not helpful.         }     }      catch (malformedurlexception e1)     {     }     if(response!=null)     {         //do stuff response...     } } 

here stack trace: (i can verify file indeed exist however!)

04-24 15:16:22.854: w/system.err(12830): java.io.filenotfoundexception: https://         (ive removed website privacy purposes now) 04-24 15:16:22.854: w/system.err(12830):    @ libcore.net.http.httpurlconnectionimpl.getinputstream(httpurlconnectionimpl.java:186) 04-24 15:16:22.854: w/system.err(12830):    @ libcore.net.http.httpsurlconnectionimpl.getinputstream(httpsurlconnectionimpl.java:271) 04-24 15:16:22.854: w/system.err(12830):    @ com.lloydm.app.mainactivity$mainlisting.run(mainactivity.java:1733) 04-24 15:16:22.854: w/system.err(12830):    @ java.lang.thread.run(thread.java:856) 

(stack trace reformatted)