Cannor read file with 6131 NFC SDK

[gwozdziu]

Im a n00b with mobile Java and wold like to ask you all for help.
I use Eclipse 3.4.1 with eclipseME. I use Nokia 6131 NFC SDK (ver. 1.1).

I encountered following problem. While trying to read a file I constanly get NullPointerException ( run this in the emulator in Real Life security level).

My code:

/**
 * 
 */
package main;

import java.io.IOException;
import java.util.Enumeration;

import javax.microedition.io.Connector;
import javax.microedition.io.file.FileConnection;
import javax.microedition.io.file.FileSystemRegistry;
import javax.microedition.lcdui.*;
import javax.microedition.midlet.*;

//import tagreading.TagFoundListener;

/**
 * @author Grzegorz Gwozdz
 */
public class NFCMIDlet extends MIDlet {

	private Display display;

	/**
         * 
	 */
	public NFCMIDlet() {
		display = Display.getDisplay(this);
	}

	/**
	 * @see javax.microedition.midlet.MIDlet#destroyApp(boolean)
	 */
	protected void destroyApp(boolean unconditional)
			throws MIDletStateChangeException {
	}

	/**
	 * @see javax.microedition.midlet.MIDlet#pauseApp()
	 */
	protected void pauseApp() {

	}

	/**
	 * @see javax.microedition.midlet.MIDlet#startApp()
	 */
	protected void startApp() throws MIDletStateChangeException {
		
		System.out.println("FileConnection ver.:"+
			System.getProperty("microedition.io.file.FileConnection.version"));
		
		Enumeration roots = FileSystemRegistry.listRoots();
		while(roots.hasMoreElements()){
			System.out.println(roots.nextElement());
		}
		
		try {
			FileConnection fileConnection = 
				(FileConnection)Connector.open("file:///e:/");		
			
		} catch (IOException ex) {			
			ex.printStackTrace();
		} catch (NullPointerException e){
			System.out.println("Error:"+e.getMessage());
			e.printStackTrace();
			
		}
	}
}

This is what i get in the concole:
Emulator command: E:\Nokia\Devices\Nokia_6131_NFC_SDK_1_1\bin\midp.exe -Xdescriptor "C:\DOCUME~1\marta\USTAWI~1\Temp\_eclipseme.tmpmarta\NFCTest4791668885001017552.launch\NFCTest.jad"
FileConnection ver.:1.0
c:/
e:/
Error:null
java.lang.NullPointerException

Fancy, same code (with 'e:' switched to 'root1') works fine with Sun Java Wireless Toolkit 2.5 for CLDC emulator).

Can you please tell me what i am doing wrong?

[rdrincon]

Hello

1.

What if you use Nokia Specific Directories

http://library.forum.nokia.com/index...6BF_cover.html

2.

What phone are you using

[gwozdziu]

Not yet the real device So far im using the emulator provided with Nokia 6131 NFC SDK.