java - HttpConnection - javax.microedition, returning -1 for getLength() method -

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i trying program simple mobile application (j2me) in java. idea access website via url input , read contents of website buffer.

here's problem. works fine url's not others? example below (wikipedia) works fine. take "http://java.com/en/about/" example , "httpconnection hc" returns -1 getlenght() there no content read buffer?

here's code:

        string url = "http://en.wikipedia.org/wiki/rss";          //sets httpconnection , inputstream using url variable         httpconnection hc = null;         inputstream = null;          try {             hc = (httpconnection) connector.open(url);             = hc.openinputstream();         } catch (ioexception ie) {             system.out.println(ie.getmessage());         }          //reader object created read input inputstream         reader rdr = new inputstreamreader(is);          //variable "content" store html code         string content = "";          //get lenght of data set buffer sizes         int len = (int) hc.getlength();

any ideas? let me know if i've missed out!

just info using netbeans 6.9.1

library httpconnection "javax.microedition.io.httpconnection;" + "import javax.microedition.io.connector;"

the http response java.com is

http/1.1 200 ok server: sun-java-system-web-server/7.0 date: wed, 23 feb 2011 11:07:44 gmt content-type: text/html;charset=utf-8 set-cookie: jsessionid=b62f3dfb233bb2806018ec721f6c3fd7; path=/ content-encoding: gzip vary: accept-encoding transfer-encoding: chunked

the http response wikipedia is

http/1.0 200 ok date: wed, 23 feb 2011 10:18:56 gmt server: apache cache-control: private, s-maxage=0, max-age=0, must-revalidate content-language: en vary: accept-encoding,cookie last-modified: fri, 18 feb 2011 00:23:59 gmt content-encoding: gzip content-length: 24905 content-type: text/html; charset=utf-8 age: 2984 x-cache: hit sq61.wikimedia.org, miss sq38.wikimedia.org x-cache-lookup: hit sq61.wikimedia.org:3128, miss sq38.wikimedia.org:80 connection: keep-alive

as see, http response of http://java.com/en/about/ doesn't contain content-length header, content chunked.

so, getlength() return -1.


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