ERROR request POST returns a 411 error

Question

I have some problems sending a POST request from my midlet:
if i send from 1 to 1448 the servlet takes the content and stores it on a local file
if i send from 1449 to 2000 the servlet takes the content and stores it on a local file up to only 1.41 k (1449 characters) and the emulator takes really long before it returns a "file saved succesfully" message.
if i send above about 2000 characters the servlet returns a 411 error ..
The midlet code is divided in two classes ... the HttpMidlet implements midlet and GUIs classes... whereas the Download class connects in a separate thread
HttpMidlet code
* HttpMidlet.java
* Created on October 23, 2001, 11:19 AM
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import javax.microedition.io.*;
import java.io.*;
* @author  kgabhart
* @version
public class HttpMidlet extends MIDlet implements CommandListener {
    // A default URL is used. User can change it from the GUI
    private static String       defaultURL = "someURL";
    // Main MIDP display
    private Display             myDisplay = null;
    // GUI component for entering a URL
    private Form                requestScreen;
    private TextField           requestField;
    // GUI component for submitting request
    private List                list;
    private String[]            menuItems;
    // GUI component for displaying server responses
    private Form                resultScreen;
    private StringItem          resultField;
    String result;
    // the "send" button used on requestScreen
    Command sendCommand;
    // the "exit" button used on the requestScreen
    Command exitCommand;
    // the "back" button used on resultScreen
    Command backCommand;
    public HttpMidlet(){
        // initialize the GUI components
        myDisplay = Display.getDisplay( this );
        sendCommand = new Command( "SEND", Command.OK, 1 );
        exitCommand = new Command( "EXIT", Command.OK, 1 );
        backCommand = new Command( "BACK", Command.OK, 1 );
        // display the request URL
        requestScreen = new Form( "Type in a URL:" );
        requestField = new TextField( null, defaultURL, 100, TextField.URL );
        requestScreen.append( requestField );
        requestScreen.addCommand( sendCommand );
        requestScreen.addCommand( exitCommand );
        requestScreen.setCommandListener( this );
        // select the HTTP request method desired
        menuItems = new String[] {"GET Request", "POST Request"};   
        list = new List( "Select an HTTP method:", List.IMPLICIT, menuItems, null );
        list.setCommandListener( this );
        // display the message received from server
        resultScreen = new Form( "Server Response:" );
        resultScreen.addCommand( backCommand );
        resultScreen.setCommandListener( this );
    }//end HttpMidlet()
    public void startApp() {
        myDisplay.setCurrent( requestScreen );
    }//end startApp()
    public void commandAction( Command com, Displayable disp ) {
        // when user clicks on the "send" button
        if ( com == sendCommand ) {
            myDisplay.setCurrent( list );
        } else if ( com == backCommand ) {
            // do it all over again
            requestField.setString( defaultURL );
            myDisplay.setCurrent( requestScreen );
        } else if ( com == exitCommand ) {
            destroyApp( true );
            notifyDestroyed();
        }//end if ( com == sendCommand )
        if ( disp == list && com == List.SELECT_COMMAND ) {
            if ( list.getSelectedIndex() == 0 ) // send a GET request to server
              result = sendHttpGet( requestField.getString() );
            else // send a POST request to server
              //result = sendHttpPost( requestField.getString() );
              this.sendHttpPost( requestField.getString() );
            //resultField = new StringItem( null, result );
            //resultScreen.append( resultField );
            //resultScreen.append( result);
            //myDisplay.setCurrent( resultScreen );
        }//end if ( dis == list && com == List.SELECT_COMMAND )
    }//end commandAction( Command, Displayable )
    private String sendHttpGet( String url )
        HttpConnection      hcon = null;
        DataInputStream     dis = null;
        StringBuffer        responseMessage = new StringBuffer();
        try {
            // a standard HttpConnection with READ access
            hcon = ( HttpConnection )Connector.open( url );
            // obtain a DataInputStream from the HttpConnection
            dis = new DataInputStream( hcon.openInputStream() );
            // retrieve the response from the server
            int ch;
            while ( ( ch = dis.read() ) != -1 ) {
                responseMessage.append( (char) ch );
            }//end while ( ( ch = dis.read() ) != -1 )
        catch( Exception e )
            e.printStackTrace();
            responseMessage.append( "ERROR" );
        } finally {
            try {
                if ( hcon != null ) hcon.close();
                if ( dis != null ) dis.close();
            } catch ( IOException ioe ) {
                ioe.printStackTrace();
            }//end try/catch
        }//end try/catch/finally
        return responseMessage.toString();
    }//end sendHttpGet( String )
    private void sendHttpPost( String url )
        //adding code to run thread call
         String contenT = "4444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444";//String tempURL = url /*+ "?filename=" + filename */;
        Download download = new Download (url, this, contenT);
        download.start ();
    }//end sendHttpPost( String )
    public void setOutput (String result)
        result = result.toString();
        resultScreen.append( result);
        myDisplay.setCurrent( resultScreen );
    public void pauseApp() {
    }//end pauseApp()
    public void destroyApp( boolean unconditional ) {
        // help Garbage Collector
        myDisplay = null;
        requestScreen = null;
        requestField = null;
        resultScreen = null;
        resultField = null;
    }//end destroyApp( boolean )
}//end HttpMidletThe Download class:
//class modified by Diego Gullo to implement multi-threaded connections in MIDP
//importing packages
import javax.microedition.io.*;
import java.io.*;
import javax.microedition.midlet.*;
class Download implements Runnable
    private String url;
    private String contenT;
    private HttpMidlet MIDlet;
    //private String imageName = null;
    private boolean downloadSuccess = false;
    //private String downloadResult;
    public Download (String url, HttpMidlet MIDlet, String content)  //, String imageName)
        this.contenT = content;
        this.url = url;
        this.MIDlet = MIDlet;
        //this.imageName = imageName;
    * Download the image
    public void run ()
        try
            sendContent (url);
        catch (Exception e)
            System.err.println ("Msg: " + e.toString ());
    * Create and start the new thread
    public void start ()
        Thread thread = new Thread (this);
        try
            thread.start ();
        catch (Exception e)
    * Open connection and download png into a byte array.
    private void sendContent (String url) throws IOException
        HttpConnection      hcon = null;
        DataInputStream     dis = null;
        DataOutputStream    dos = null;
        StringBuffer        responseMessage = new StringBuffer();
        // the request body
        String              requeststring = contenT;
        try {
            // an HttpConnection with both read and write access
            hcon = ( HttpConnection )Connector.open( url, Connector.READ_WRITE );
            // set the request method to POST
            hcon.setRequestMethod( HttpConnection.POST );
            // obtain DataOutputStream for sending the request string
            dos = hcon.openDataOutputStream();
            byte[] request_body = requeststring.getBytes();
            // send request string to server
            for( int i = 0; i < request_body.length; i++ ) {
                dos.writeByte( request_body[i] );
            }//end for( int i = 0; i < request_body.length; i++ )
            // obtain DataInputStream for receiving server response
            dis = new DataInputStream( hcon.openInputStream() );
            // retrieve the response from server
            int ch;
            while( ( ch = dis.read() ) != -1 ) {
                responseMessage.append( (char)ch );
            }//end while( ( ch = dis.read() ) != -1 ) {
        catch( Exception e )
            e.printStackTrace();
            responseMessage.append( "ERROR" );
        finally {
            // free up i/o streams and http connection
            try {
                if( hcon != null ) hcon.close();
                if( dis != null ) dis.close();
                if( dos != null ) dos.close();
            } catch ( IOException ioe ) {
                ioe.printStackTrace();
            }//end try/catch
        }//end try/catch/finally
        // Return to the caller the status of the content
        if (responseMessage == null)
            //*MIDlet.*/this.setResult ("No content received!");
            while (responseMessage == null)
                this.sendContent (url);
        else
            //MIDlet.im = result;
            //MIDlet.result = result;
            MIDlet.setOutput (responseMessage.toString());
            //*MIDlet.*/this.setResult (result);
}Any suggestions to solve the problem???
Thanks

Answer 1

we've only deployed on 10.1.3.0.0 so i have not been able to confirm that this is not an issue in 10.1.3.1.0.
even if this has been fixed in 10.1.3.1.0, upgrading may not be an option for us, so we prefer a fix for this in 10.1.3.0.0.
thanks,
ted