Hi all.
Hope you can help me out with this problem.
I am trying to get a bluetooth finder to stop, and start again.
What I can see is that the first time it stops and then start again, it work. the next time I do it, nothing happens. When I say it works, I mean it finds the devices and lists them. It doesnt do that the second time. I can see that it doesnt stop the first time as my test output keeps spitting out data. Hope someone can help me here. thx in advance.

P.s. this is a modification of another bluetooth code so not my own work, just trying to rewrite it so it fits my need.

Main midlet:

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

import java.io.DataOutputStream;
import java.io.IOException;
import java.util.Vector;
import javax.bluetooth.LocalDevice;
import javax.microedition.io.Connector;
import javax.microedition.io.StreamConnection;
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import org.netbeans.microedition.lcdui.SplashScreen;
import org.netbeans.microedition.lcdui.TableItem;

/**
 * @author MMA
 */
public class MainMidlet extends MIDlet implements CommandListener, Runnable {

    
    private boolean midletPaused = false;
    MyFinder mainFinder = new MyFinder(this);
        
    
//<editor-fold defaultstate="collapsed" desc=" Generated Fields ">
private List Menu;
private Form ClientForm;
private TextField textField;
private Form ServerForm;
private StringItem stringItem;
private TableItem tableItem;
private Form ServerList;
private ChoiceGroup choiceGroup;
private SplashScreen SendSplash;
private Command backCommand1;
private Command backCommand;
private Command okCommand1;
private Command okCommand;
private Command exitCommand;
private Command backCommand2;
private Command okCommand2;
private Command Send;
private Command start_searchCommand;
private Command stop_searchCommand;
private Image image1;
//</editor-fold>

    /**
     * The MainMidlet constructor.
     */
    public MainMidlet() {
    }

//<editor-fold defaultstate="collapsed" desc=" Generated Methods ">
//</editor-fold>

//<editor-fold defaultstate="collapsed" desc=" Generated Method: initialize ">
/**
 * Initilizes the application.
 * It is called only once when the MIDlet is started. The method is called before the <code>startMIDlet</code> method.
 */
private void initialize () {
        // write pre-initialize user code here
 
        // write post-initialize user code here
}
//</editor-fold>

//<editor-fold defaultstate="collapsed" desc=" Generated Method: startMIDlet ">
/**
 * Performs an action assigned to the Mobile Device - MIDlet Started point.
 */
public void startMIDlet () {
        // write pre-action user code here
switchDisplayable (null, getMenu ());
        // write post-action user code here
}
//</editor-fold>

//<editor-fold defaultstate="collapsed" desc=" Generated Method: resumeMIDlet ">
/**
 * Performs an action assigned to the Mobile Device - MIDlet Resumed point.
 */
public void resumeMIDlet () {
        // write pre-action user code here
 
        // write post-action user code here
}
//</editor-fold>

//<editor-fold defaultstate="collapsed" desc=" Generated Method: switchDisplayable ">
/**
 * Switches a current displayable in a display. The <code>display</code> instance is taken from <code>getDisplay</code> method. This method is used by all actions in the design for switching displayable.
 * @param alert the Alert which is temporarily set to the display; if <code>null</code>, then <code>nextDisplayable</code> is set immediately
 * @param nextDisplayable the Displayable to be set
 */
public void switchDisplayable (Alert alert, Displayable nextDisplayable) {
        // write pre-switch user code here
Display display = getDisplay ();
if (alert == null) {
display.setCurrent (nextDisplayable);
} else {
display.setCurrent (alert, nextDisplayable);
}
        // write post-switch user code here
}
//</editor-fold>

//<editor-fold defaultstate="collapsed" desc=" Generated Method: commandAction for Displayables ">
/**
 * Called by a system to indicated that a command has been invoked on a particular displayable.
 * @param command the Command that was invoked
 * @param displayable the Displayable where the command was invoked
 */
public void commandAction (Command command, Displayable displayable) {
 // write pre-action user code here
if (displayable == ClientForm) {
if (command == backCommand1) {
 // write pre-action user code here
switchDisplayable (null, getMenu ());
 // write post-action user code here
} else if (command == okCommand1) {
 // write pre-action user code here
switchDisplayable (null, getServerList ());
 // write post-action user code here
}
} else if (displayable == Menu) {
if (command == List.SELECT_COMMAND) {
 // write pre-action user code here
MenuAction ();
 // write post-action user code here
} else if (command == exitCommand) {
 // write pre-action user code here
exitMIDlet ();
 // write post-action user code here
}
} else if (displayable == SendSplash) {
if (command == SplashScreen.DISMISS_COMMAND) {
 // write pre-action user code here
switchDisplayable (null, getServerList ());
 // write post-action user code here
}
} else if (displayable == ServerForm) {
if (command == backCommand) {
 // write pre-action user code here
switchDisplayable (null, getMenu ());
 // write post-action user code here
} else if (command == okCommand) {
 // write pre-action user code here
switchDisplayable (null, getServerForm ());
 // write post-action user code here
}
} else if (displayable == ServerList) {
if (command == backCommand2) {
 // write pre-action user code here
switchDisplayable (null, getClientForm ());
 // write post-action user code here
} else if (command == okCommand2) {
 // write pre-action user code here
switchDisplayable (null, getSendSplash ());
 // write post-action user code here
} else if (command == start_searchCommand) {
 // write pre-action user code here
start_device_search();
 // write post-action user code here
} else if (command == stop_searchCommand) {
 // write pre-action user code here
stop_device_search();
 // write post-action user code here
}
}
 // write post-action user code here
}
//</editor-fold>



//<editor-fold defaultstate="collapsed" desc=" Generated Getter: Menu ">
/**
 * Returns an initiliazed instance of Menu component.
 * @return the initialized component instance
 */
public List getMenu () {
if (Menu == null) {
 // write pre-init user code here
Menu = new List ("Menu", Choice.IMPLICIT);
Menu.append ("Client", null);
Menu.append ("Server", null);
Menu.addCommand (getExitCommand ());
Menu.setCommandListener (this);
Menu.setSelectedFlags (new boolean[] { false, false });
 // write post-init user code here
}
return Menu;
}
//</editor-fold>

//<editor-fold defaultstate="collapsed" desc=" Generated Method: MenuAction ">
/**
 * Performs an action assigned to the selected list element in the Menu component.
 */
public void MenuAction () {
 // enter pre-action user code here
String __selectedString = getMenu ().getString (getMenu ().getSelectedIndex ());
if (__selectedString != null) {
if (__selectedString.equals ("Client")) {
 // write pre-action user code here
switchDisplayable (null, getClientForm ());
 // write post-action user code here
} else if (__selectedString.equals ("Server")) {
 // write pre-action user code here
switchDisplayable (null, getServerForm ());
 // write post-action user code here
}
}
 // enter post-action user code here
}
//</editor-fold>

//<editor-fold defaultstate="collapsed" desc=" Generated Getter: ClientForm ">
/**
 * Returns an initiliazed instance of ClientForm component.
 * @return the initialized component instance
 */
public Form getClientForm () {
if (ClientForm == null) {
 // write pre-init user code here
ClientForm = new Form ("", new Item[] { getTextField () });
ClientForm.addCommand (getBackCommand1 ());
ClientForm.addCommand (getOkCommand1 ());
ClientForm.setCommandListener (this);
 // write post-init user code here
}
return ClientForm;
}
//</editor-fold>

//<editor-fold defaultstate="collapsed" desc=" Generated Getter: textField ">
/**
 * Returns an initiliazed instance of textField component.
 * @return the initialized component instance
 */
public TextField getTextField () {
if (textField == null) {
 // write pre-init user code here
textField = new TextField ("Message:", null, 32, TextField.ANY);
 // write post-init user code here
}
return textField;
}
//</editor-fold>

//<editor-fold defaultstate="collapsed" desc=" Generated Getter: ServerForm ">
/**
 * Returns an initiliazed instance of ServerForm component.
 * @return the initialized component instance
 */
public Form getServerForm () {
if (ServerForm == null) {
 // write pre-init user code here
ServerForm = new Form ("Server", new Item[] { getTableItem (), getStringItem () });
ServerForm.addCommand (getBackCommand ());
ServerForm.addCommand (getOkCommand ());
ServerForm.setCommandListener (this);
 // write post-init user code here
}
return ServerForm;
}
//</editor-fold>

//<editor-fold defaultstate="collapsed" desc=" Generated Getter: tableItem ">
/**
 * Returns an initiliazed instance of tableItem component.
 * @return the initialized component instance
 */
public TableItem getTableItem () {
if (tableItem == null) {
 // write pre-init user code here
tableItem = new TableItem (getDisplay (), "Device:");
 // write post-init user code here
}
return tableItem;
}
//</editor-fold>

//<editor-fold defaultstate="collapsed" desc=" Generated Getter: stringItem ">
/**
 * Returns an initiliazed instance of stringItem component.
 * @return the initialized component instance
 */
public StringItem getStringItem () {
if (stringItem == null) {
 // write pre-init user code here
stringItem = new StringItem ("Message", null);
 // write post-init user code here
}
return stringItem;
}
//</editor-fold>

//<editor-fold defaultstate="collapsed" desc=" Generated Getter: backCommand ">
/**
 * Returns an initiliazed instance of backCommand component.
 * @return the initialized component instance
 */
public Command getBackCommand () {
if (backCommand == null) {
 // write pre-init user code here
backCommand = new Command ("Back", Command.BACK, 0);
 // write post-init user code here
}
return backCommand;
}
//</editor-fold>

//<editor-fold defaultstate="collapsed" desc=" Generated Getter: backCommand1 ">
/**
 * Returns an initiliazed instance of backCommand1 component.
 * @return the initialized component instance
 */
public Command getBackCommand1 () {
if (backCommand1 == null) {
 // write pre-init user code here
backCommand1 = new Command ("Back", Command.BACK, 0);
 // write post-init user code here
}
return backCommand1;
}
//</editor-fold>

//<editor-fold defaultstate="collapsed" desc=" Generated Getter: okCommand1 ">
/**
 * Returns an initiliazed instance of okCommand1 component.
 * @return the initialized component instance
 */
public Command getOkCommand1 () {
if (okCommand1 == null) {
 // write pre-init user code here
okCommand1 = new Command ("Ok", Command.OK, 0);
 // write post-init user code here
}
return okCommand1;
}
//</editor-fold>

//<editor-fold defaultstate="collapsed" desc=" Generated Getter: okCommand ">
/**
 * Returns an initiliazed instance of okCommand component.
 * @return the initialized component instance
 */
public Command getOkCommand () {
if (okCommand == null) {
 // write pre-init user code here
okCommand = new Command ("Ok", Command.OK, 0);
 // write post-init user code here
}
return okCommand;
}
//</editor-fold>

//<editor-fold defaultstate="collapsed" desc=" Generated Getter: exitCommand ">
/**
 * Returns an initiliazed instance of exitCommand component.
 * @return the initialized component instance
 */
public Command getExitCommand () {
if (exitCommand == null) {
 // write pre-init user code here
exitCommand = new Command ("Exit", Command.EXIT, 0);
 // write post-init user code here
}
return exitCommand;
}
//</editor-fold>





//<editor-fold defaultstate="collapsed" desc=" Generated Getter: ServerList ">
/**
 * Returns an initiliazed instance of ServerList component.
 * @return the initialized component instance
 */
public Form getServerList () {
if (ServerList == null) {
 // write pre-init user code here
ServerList = new Form ("", new Item[] { getChoiceGroup () });
ServerList.addCommand (getBackCommand2 ());
ServerList.addCommand (getOkCommand2 ());
ServerList.addCommand (getStart_searchCommand ());
ServerList.addCommand (getStop_searchCommand ());
ServerList.setCommandListener (this);
 // write post-init user code here
}
return ServerList;
}
//</editor-fold>

//<editor-fold defaultstate="collapsed" desc=" Generated Getter: choiceGroup ">
/**
 * Returns an initiliazed instance of choiceGroup component.
 * @return the initialized component instance
 */
public ChoiceGroup getChoiceGroup () {
if (choiceGroup == null) {
 // write pre-init user code here
choiceGroup = new ChoiceGroup ("Servers", Choice.MULTIPLE);
choiceGroup.setPreferredSize (-1, -1);
choiceGroup.setLayout (ImageItem.LAYOUT_CENTER | Item.LAYOUT_TOP | Item.LAYOUT_BOTTOM | Item.LAYOUT_VCENTER);
choiceGroup.setSelectedFlags (new boolean[] {  });
 // write post-init user code here
}
return choiceGroup;
}
//</editor-fold>

//<editor-fold defaultstate="collapsed" desc=" Generated Getter: backCommand2 ">
/**
 * Returns an initiliazed instance of backCommand2 component.
 * @return the initialized component instance
 */
public Command getBackCommand2 () {
if (backCommand2 == null) {
 // write pre-init user code here
backCommand2 = new Command ("Back", Command.BACK, 0);
 // write post-init user code here
}
return backCommand2;
}
//</editor-fold>

//<editor-fold defaultstate="collapsed" desc=" Generated Getter: okCommand2 ">
/**
 * Returns an initiliazed instance of okCommand2 component.
 * @return the initialized component instance
 */
public Command getOkCommand2 () {
if (okCommand2 == null) {
 // write pre-init user code here
okCommand2 = new Command ("Ok", Command.OK, 0);
 // write post-init user code here
//Object finder = new MyFinder(this);
MyFinder finder = new MyFinder(this);
finder.start();
}
return okCommand2;
}
//</editor-fold>

//<editor-fold defaultstate="collapsed" desc=" Generated Getter: SendSplash ">
/**
 * Returns an initiliazed instance of SendSplash component.
 * @return the initialized component instance
 */
public SplashScreen getSendSplash () {
if (SendSplash == null) {
 // write pre-init user code here
SendSplash = new SplashScreen (getDisplay ());
SendSplash.setTitle ("");
SendSplash.setCommandListener (this);
SendSplash.setImage (getImage1 ());
SendSplash.setText ("Sending message");
SendSplash.setTimeout (2000);
 // write post-init user code here
Thread t = new Thread(this);
t.start();
}
return SendSplash;
}
//</editor-fold>

//<editor-fold defaultstate="collapsed" desc=" Generated Getter: Send ">
/**
 * Returns an initiliazed instance of Send component.
 * @return the initialized component instance
 */
public Command getSend () {
if (Send == null) {
 // write pre-init user code here
Send = new Command ("Send", Command.OK, 0);
 // write post-init user code here
}
return Send;
}
//</editor-fold>

//<editor-fold defaultstate="collapsed" desc=" Generated Getter: image1 ">
/**
 * Returns an initiliazed instance of image1 component.
 * @return the initialized component instance
 */
public Image getImage1 () {
if (image1 == null) {
 // write pre-init user code here
try {
image1 = Image.createImage ("/bluetooth_small.jpg");
} catch (java.io.IOException e) {
e.printStackTrace ();
}
 // write post-init user code here
}
return image1;
}
//</editor-fold>

//<editor-fold defaultstate="collapsed" desc=" Generated Getter: start_searchCommand ">
/**
 * Returns an initiliazed instance of start_searchCommand component.
 * @return the initialized component instance
 */
public Command getStart_searchCommand () {
if (start_searchCommand == null) {
 // write pre-init user code here
    
start_searchCommand = new Command ("Start BT s\u00F8gning", Command.ITEM, 0);
 // write post-init user code here


}
return start_searchCommand;
}
//</editor-fold>

//<editor-fold defaultstate="collapsed" desc=" Generated Getter: stop_searchCommand ">
/**
 * Returns an initiliazed instance of stop_searchCommand component.
 * @return the initialized component instance
 */
public Command getStop_searchCommand () {
if (stop_searchCommand == null) {
 // write pre-init user code here
stop_searchCommand = new Command ("Stop BT s\u00F8gning", Command.ITEM, 0);
 // write post-init user code here
}
return stop_searchCommand;
}
//</editor-fold>

    /**
     * Returns a display instance.
     * @return the display instance.
     */
    public Display getDisplay () {
        return Display.getDisplay(this);
    }

    /**
     * Exits MIDlet.
     */
    public void exitMIDlet() {
        switchDisplayable (null, null);
        destroyApp(true);
        notifyDestroyed();
    }

    /**
     * Called when MIDlet is started.
     * Checks whether the MIDlet have been already started and initialize/starts or resumes the MIDlet.
     */
    public void startApp() {
        if (midletPaused) {
            resumeMIDlet ();
        } else {
            initialize ();
            startMIDlet ();
        }
        midletPaused = false;
    }

    /**
     * Called when MIDlet is paused.
     */
    public void pauseApp() {
        midletPaused = true;
    }

    /**
     * Called to signal the MIDlet to terminate.
     * @param unconditional if true, then the MIDlet has to be unconditionally terminated and all resources has to be released.
     */
    public void destroyApp(boolean unconditional) {
    }

    public void removeDevice(int i){
            choiceGroup.delete(i);              

    }
    
    public void stop_device_search(){
      choiceGroup.deleteAll();
      mainFinder.stop();  
    }
    
    public void start_device_search(){
        choiceGroup.deleteAll();
        if(mainFinder.searching == false){
        mainFinder.start();
        }
    }
    public void addDevice(MyService ms){
        String s = ms.getName() + ":" + ms.getAddress();   
        choiceGroup.append(s, null);
        int count = choiceGroup.size();
        System.out.println(count);
    }

    public void run() {
            Vector urls = new Vector();
    
    // Synchronize so reconcile() won't run
    // at the same time.
    synchronized(mainFinder) {
      int n = choiceGroup.size();
      boolean[] flags = new boolean[n];
            choiceGroup.getSelectedFlags(flags);
      for (int i = 0; i < n; i++) {
        if (flags[i] == true) {
          String url = mainFinder.getURL(i);
          urls.addElement(url);
        }
      }
    }
    
    for (int i = 0; i < urls.size(); i++) {
      String url = (String)urls.elementAt(i);
      try { runURL(url); }
      catch (IOException ioe) {
        System.out.println("BlueChewMIDlet.run(): " + ioe);
      }
    }
    
    }

      private void runURL(String url) throws IOException {
    StreamConnection sc = null;
    DataOutputStream dataOut = null;
    
    try {
      sc = (StreamConnection)
          Connector.open(url);
      dataOut = new DataOutputStream(
          sc.openOutputStream());
      LocalDevice bt = LocalDevice.getLocalDevice();
      String from = bt.getFriendlyName() + ":" +
          bt.getBluetoothAddress();
      dataOut.writeUTF(from);
      dataOut.writeUTF(textField.getString());
    }
    finally {
      try { if (dataOut != null) dataOut.close(); }
      catch (IOException ioe) {}
      try { if (sc != null) sc.close(); }
      catch (IOException ioe) {}
    }
  }    
}

Finder:

import java.io.IOException;
import java.util.Vector;

import javax.bluetooth.*;

public class MyFinder implements DiscoveryListener {
    
    
    private MainMidlet midlet;
    Vector v_services, v_new_services;
    boolean searching, trucking;
    int service_search_remaining;
    
     // initialiserer my_finder værdierne. 
    public MyFinder(MainMidlet Tmidlet) {
        midlet = Tmidlet;
        v_services = new Vector();
        v_new_services = new Vector();
        service_search_remaining = 0; 
        searching = false;
        trucking = true;
    }
    
    public void start() {
        try {
        LocalDevice ld = LocalDevice.getLocalDevice();
        DiscoveryAgent da = ld.getDiscoveryAgent();
        boolean success = da.startInquiry(DiscoveryAgent.GIAC, this);
        searching = true;
        }
        // Checker om inquiriet kan udføres i den nuværende state. Hvis ikke 
        // dette er muligt, vil en exception blive genereret. 
        catch (BluetoothStateException bse)
        {
            System.out.println("start() threw" + bse);
        }
    }

    public void stop(){
        try{
            trucking = false;
            LocalDevice ld = LocalDevice.getLocalDevice();
            DiscoveryAgent da = ld.getDiscoveryAgent();
            da.cancelInquiry(this);
            //searching = false;
        }
        catch(BluetoothStateException bse){
            System.out.println("stop() threw" + bse);
        }
    }       
        
    public String getURL(int i) {
        MyService bcs = (MyService)v_services.elementAt(i);
        String url = bcs.getURL();
        return url;
    }
    
    public void deviceDiscovered(RemoteDevice remotedevice, DeviceClass deviceclass) {
        try{
            LocalDevice ld = LocalDevice.getLocalDevice();
            DiscoveryAgent da = ld.getDiscoveryAgent();
            
            UUID[] uuidset = { MyService.BLUECHEW_UUID};
            service_search_remaining++;
            da.searchServices(null, uuidset, remotedevice, this);
        }
        catch (IOException ioe){
            System.out.println("DeviceDiscovered(): " + ioe);
        }
        catch (Throwable t) {
            System.out.println("DeviceDiscovered(): " + t);
            searching = false;
        }
    }

    public void servicesDiscovered(int transID, ServiceRecord[] servRecord) {
        for (int i = 0; i< servRecord.length;i++){
            try{               
            RemoteDevice rd = servRecord[i].getHostDevice();
            String name = rd.getFriendlyName(false);
            String address = rd.getBluetoothAddress();
            String URL = servRecord[i].getConnectionURL(ServiceRecord.NOAUTHENTICATE_NOENCRYPT, false);
            MyService bcs = new MyService(name, address, URL);
            v_new_services.addElement(bcs);   
            }
            catch (BluetoothStateException bse){
                System.out.println("ServiceDiscovered(): " + bse);                
            }
            catch (IOException ioe) {
                System.out.println("ServiceDiscovered(): " + ioe);
            }
        }
        System.out.println("services" + v_services.size());
    }

    public void serviceSearchCompleted(int TransID, int respCode) {
        service_search_remaining --;
        if( searching==false && service_search_remaining==0) {
            reconcile();
            
            try{ Thread.sleep(1000); }
            catch(InterruptedException ie){}
            
            if(trucking == true)
                start();                  
        }
    }
    
    // opdaterer v_services ved at fjerne elementer der ikke er i v_new_services. 
    public synchronized void reconcile() {
        for(int i=0;i<v_services.size();i++){
            MyService bcs = (MyService)v_services.elementAt(i);
            if(contains(v_new_services, bcs) == false) {
                v_services.removeElement(bcs);
                midlet.removeDevice(i);                
            }
        }
        System.out.println("Test remove v_service " + v_services.size());
        
        for(int i=0;i<v_new_services.size();i++){
            MyService bcs = (MyService)v_new_services.elementAt(i);
            if((contains(v_services, bcs)) == false){
                v_services.addElement(bcs);
                midlet.addDevice(bcs);
            }
        }
        
        System.out.println("Test remove v_service " + v_services.size());
        v_new_services.removeAllElements();
    }

    private boolean contains(Vector v, Object o){
        boolean contained = false;
        for(int i=0;i< v.size(); i++){
            Object oc = v.elementAt(i);
            if(oc.equals(o)){
                contained = true;
            }
        }         
        return contained;
    }            
    
    public void inquiryCompleted(int arg0) {
        searching = false;
    }
    
    
    
    
}

Your code is almost a hundred lines, and your indentation is inconsistent, it would have definitely helped if you would have followed one indentation pattern at least consistently

and you don't stop threads. You tell them that they should at their leasure do what's needed to terminate (of course after closing and cleaning up resources, etc.).

What I am trying to do, is to "terminate" the Finder, when a specific command is called, and then start it again, when another command is called. So the code in the first part, is where I want to have the "terminate" command. I have tried to implement it in the method void stop_search_command, but it doesnt stop it.

First indent that monster, also read this on how to use code tags correctly and then repost the RELEVANT section of the code.

The part I am trying to solve, is how I stop the search of a device, and how I restart it again. The code for finding a device is this

import java.io.IOException;
import java.util.Vector;

import javax.bluetooth.*;
import javax.microedition.lcdui.ChoiceGroup;

public class MyFinder implements DiscoveryListener {
    
    
    private MainMidlet midlet;
    Vector v_services, v_new_services;
    boolean searching, trucking,no_device;
    int service_search_remaining;
    
     // initialiserer my_finder værdierne. 
    public MyFinder(MainMidlet Tmidlet) {
        midlet = Tmidlet;
        v_services = new Vector();
        v_new_services = new Vector();
        service_search_remaining = 0;
        searching = false;
        trucking = true;
        no_device = false;
    }
    
    public void start() {
        try {
        LocalDevice ld = LocalDevice.getLocalDevice();
        DiscoveryAgent da = ld.getDiscoveryAgent();
        boolean success = da.startInquiry(DiscoveryAgent.GIAC, this);
        searching = true;
        }
        // Checker om inquiriet kan udføres i den nuværende state. Hvis ikke 
        // dette er muligt, vil en exception blive genereret. 
        catch (BluetoothStateException bse)
        {
            System.out.println("start() threw" + bse);
        }
    }

    public void stop(){
        try{
            trucking = false;
            LocalDevice ld = LocalDevice.getLocalDevice();
            DiscoveryAgent da = ld.getDiscoveryAgent();
            da.cancelInquiry(this);
        }
        catch(BluetoothStateException bse){
            System.out.println("stop() threw" + bse);
        }
    }       
        
    public String getURL(int i) {
        MyService bcs = (MyService)v_services.elementAt(i);
        String url = bcs.getURL();
        return url;
    }
    
    public void deviceDiscovered(RemoteDevice remotedevice, DeviceClass deviceclass) {
        try{
            LocalDevice ld = LocalDevice.getLocalDevice();
            DiscoveryAgent da = ld.getDiscoveryAgent();
            
            UUID[] uuidset = { MyService.BLUECHEW_UUID};
            service_search_remaining++;
            da.searchServices(null, uuidset, remotedevice, this);
        }
        catch (IOException ioe){
            System.out.println("DeviceDiscovered(): " + ioe);
            no_device = true;
        }
        catch (Throwable t) {
            System.out.println("DeviceDiscovered()1: " + t);
            searching = false;
        }
    }

    public void servicesDiscovered(int transID, ServiceRecord[] servRecord) {
        for (int i = 0; i< servRecord.length;i++){
            try{               
            RemoteDevice rd = servRecord[i].getHostDevice();
            String name = rd.getFriendlyName(false);
            String address = rd.getBluetoothAddress();
            String URL = servRecord[i].getConnectionURL(ServiceRecord.NOAUTHENTICATE_NOENCRYPT, false);
            MyService bcs = new MyService(name, address, URL);
            v_new_services.addElement(bcs);   
            }
            catch (BluetoothStateException bse){
                System.out.println("ServiceDiscovered(): " + bse);                
            }
            catch (IOException ioe) {
                System.out.println("ServiceDiscovered(): " + ioe);
            }
        }
        System.out.println("services" + v_services.size());
    }

    public void serviceSearchCompleted(int TransID, int respCode) {
        service_search_remaining --;
        if( searching==false && service_search_remaining==0) {
            reconcile();
            
            try{ Thread.sleep(1000); }
            catch(InterruptedException ie){}
            
            if(trucking == true)
                start();                  
        }
    }
    
    // opdaterer v_services ved at fjerne elementer der ikke er i v_new_services. 
    public synchronized void reconcile() {
        for(int i=0;i<v_services.size();i++){
            MyService bcs = (MyService)v_services.elementAt(i);
            if(contains(v_new_services, bcs) == false) {
                v_services.removeElement(bcs);
                midlet.removeDevice(i);                
            }
        }
        
        for(int i=0;i<v_new_services.size();i++){
            MyService bcs = (MyService)v_new_services.elementAt(i);
            if((contains(v_services, bcs)) == false){
                v_services.addElement(bcs);
                midlet.addDevice(bcs);
            }
        }
        
        System.out.println("Test remove v_service " + v_services.size());
        v_new_services.removeAllElements();
    }

    private boolean contains(Vector v, Object o){
        boolean contained = false;
        for(int i=0;i< v.size(); i++){
            Object oc = v.elementAt(i);
            if(oc.equals(o)){
                contained = true;
            }
        }         
        return contained;
    }            
    
    public void inquiryCompleted(int arg0) {
        searching = false;
    }   
}

What I am trying to do is to make a command that can stop this thread???, and start it again by calling another command. Hope you can help me here.
thx.