Re: XmlPullParser::next() hangs midway after receiving a few tokens

m v <[email protected]> Sun, 19 Nov 2006 22:43:13 -0800 (PST)
Newsgroups gmane.text.xml.xmlpull.devel
Message-ID <[email protected]> 
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Thanks a lot. The problem as you have pointed is with not setting the character encoding to "utf-8"
--mv

Aleksander Slominski <[email protected]> wrote:                                  mvemulak wrote:
 > I have a simple Jabber(XMPP) client. When I use JDK (J2SE), he parser
 > pulls
 > the data fine. But when I use the same in J2ME (MIDP) environment, the
 > client hangs after receiving a few messages. It hangs at
 > XmlPullParser::next().
 > Any ideas ?
 >   
 input stream (how you set it up) and character encoding are common
 suspects. for example see [1]
 
 HTH,
 
 alek
 [1]
 
 -------- Original Message --------
 Subject:  Re: [Kxml-devel] Howto parse large amounts of XML data
 Date:  Mon, 13 Nov 2006 23:47:22 +0100
 From:  Florian Schricker <[email protected]>
 To:  Stefan Haustein <[email protected]>
 CC:  [email protected]
 References:  <1162990214.12921.10.camel@localhost>
 <[email protected]> <1163151856.7060.9.camel@localhost>
 <[email protected]> <1163166085.24520.9.camel@localhost>
 <[email protected]>
 
 Hi Stefan!
 
 On Sun, 2006-11-12 at 23:44 +0100, Stefan Haustein wrote:
 
 > Could you try to use the InputStreamReader in your while loop, and try 
 > to read chunks of 128 characters?
 
 Given a successful HttpConnection c, I ran:
 
 InputStreamReader isr = new
         InputStreamReader(c.openInputStream());
         int ch;
         char[] chunk = new char[128];
         while ((ch = isr.read(chunk, 0, 128)) != -1) {
           System.out.print(chunk);
         }
 
 This bails out with:
 
 java.lang.ArrayIndexOutOfBoundsException: 
  at com.sun.kvem.cldc.i18n.j2me.GenericReader.read(+139)
  at java.io.InputStreamReader.read(+56)
  at MainMIDlet.startApp(+152)
  at javax.microedition.midlet.MIDletProxy.startApp(+7)
  at com.sun.midp.midlet.Scheduler.schedule(+270)
  at com.sun.midp.main.Main.runLocalClass(+28)
  at com.sun.midp.main.Main.main(+116)
 
 > The error probably stems from a mismatch of the default encoding of the 
 > InputStreamReader on your platform and the actual encoding of the XML 
 > document
 
 Yes, after setting the encoding to "utf-8" when constructing the
 InputStreamReader, reading the stream was successful!
 
 Thanks for your help! I guess this "user mistake" (mine!) is now sorted
 out - and I learned something... And maybe these mails help someone
 sometime... :-)
 
 -- 
 regards,
 Florian
 
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            <p>Thanks a lot. The problem as you have pointed is with not setting the character encoding to "utf-8"<br>--mv<br><br><b><i>Aleksander Slominski &lt;aslom@extreme.<wbr>indiana.edu&gt;</i></b> wrote:<blockquote class="replbq" style="border-left: 2px solid rgb(16, 16, 255);">     <!-- Network content -->           <div id="ygrp-text">             <div>mvemulak wrote:<br> &gt; I have a simple Jabber(XMPP) client. When I use JDK (J2SE), he parser<br> &gt; pulls<br> &gt; the data fine. But when I use the same in J2ME (MIDP) environment, the<br> &gt; client hangs after receiving a few messages. It hangs at<br> &gt; XmlPullParser:<wbr>:next().<br> &gt; Any ideas ?<br> &gt;   <br> input stream (how you set it up) and character
 encoding are common<br> suspects. for example see [1]<br> <br> HTH,<br> <br> alek<br> [1]<br> <br> -------- Original Message --------<br> Subject:  Re: [Kxml-devel] Howto parse large amounts of XML data<br> Date:  Mon, 13 Nov 2006 23:47:22 &#43;0100<br> From:  Florian Schricker &lt;<a href="mailto:fschricker%40web.de">fschricker@web.<wbr>de</a>&gt;<br> To:  Stefan Haustein &lt;<a href="mailto:sh%40kobjects.org">sh@kobjects.<wbr>org</a>&gt;<br> CC:  <a href="mailto:kxml-devel%40lists.sourceforge.net">kxml-devel@lists.<wbr>sourceforge.<wbr>net</a><br> References:  &lt;1162990214.<wbr>12921.10.<wbr>camel@localhost&gt;<br> &lt;<a href="mailto:45526E37.7000707%40kobjects.org">45526E37.7000707@<wbr>kobjects.<wbr>org</a>&gt; &lt;1163151856.<wbr>7060.9.camel@<wbr>localhost&gt;<br> &lt;<a href="mailto:45545D2E.6000306%40kobjects.org">45545D2E.6000306@<wbr>kobjects.<wbr>org</a>&gt; &lt;1163166085
 .<wbr>24520.9.camel@<wbr>localhost&gt;<br> &lt;<a href="mailto:4557A3C8.3060907%40kobjects.org">4557A3C8.3060907@<wbr>kobjects.<wbr>org</a>&gt;<br> <br> Hi Stefan!<br> <br> On Sun, 2006-11-12 at 23:44 &#43;0100, Stefan Haustein wrote:<br> <br> &gt; Could you try to use the InputStreamReader in your while loop, and try <br> &gt; to read chunks of 128 characters?<br> <br> Given a successful HttpConnection c, I ran:<br> <br> InputStreamReader isr = new<br>         InputStreamReader(<wbr>c.openInputStrea<wbr>m());<br>         int ch;<br>         char[] chunk = new char[128];<br>         while ((ch = isr.read(chunk, 0, 128)) != -1) {<br>           System.out.print(<wbr>chunk);<br>         }<br> <br> This bails out with:<br> <br> java.lang.ArrayInde<wbr>xOutOfBoundsExce<wbr>ption: <br>  at com.sun.kvem.<wbr>cldc.i18n.<wbr>j2me.GenericRead<wbr>er.read(&#43;<wbr>139)<br>  at java.io.InputStrea
 m<wbr>Reader.read(<wbr>&#43;56)<br>  at MainMIDlet.startApp<wbr>(&#43;152)<br>  at javax.microedition.<wbr>midlet.MIDletPro<wbr>xy.startApp(<wbr>&#43;7)<br> 
 at com.sun.midp.<wbr>midlet.Scheduler<wbr>.schedule(<wbr>&#43;270)<br>  at com.sun.midp.<wbr>main.Main.<wbr>runLocalClass(<wbr>&#43;28)<br>  at com.sun.midp.<wbr>main.Main.<wbr>main(&#43;116)<br> <br> &gt; The error probably stems from a mismatch of the default encoding of the <br> &gt; InputStreamReader on your platform and the actual encoding of the XML <br> &gt; document<br> <br> Yes, after setting the encoding to "utf-8" when constructing the<br> InputStreamReader, reading the stream was successful!<br> <br> Thanks for your help! I guess this "user mistake" (mine!) is now sorted<br> out - and I learned something... And maybe these mails help someone<br> sometime... :-)<br> <br> -- <br> regards,<br> Florian<br> <br> ____________<wbr>_________<wbr>_________<wbr>_________<wbr>________<br> Kxml-devel mailing list<br> <a href="mailto:Kxml-devel%40lists.sourceforge.net">Kxml-devel@lists.<
 wbr>sourceforge.<wbr>net</a><br> <a href="https://lists.sourceforge.net/lists/listinfo/kxml-devel">https://lists.<wbr>sourceforge.<wbr>net/lists/<wbr>listinfo/<wbr>kxml-devel</a><br> <br> </div>     </div>          <!--End group email -->  </blockquote><br><p>&#32;

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