RFCOMM InvocationTargetException

Original - java Code public class Start extends Activity { private static final int REQUEST_ENABLE_BT = 2; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); TextView t=new TextView(this.getApplicationContext()); String print=""; BluetoothAdapter adapter = null; adapter = BluetoothAdapter.getDefaultAdapter(); //abilito il bluetooth se questo non lo è if (!adapter.isEnabled()) { Intent enableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE); startActivityForResult(enableIntent, REQUEST_ENABLE_BT); } BluetoothDevice device = adapter.getRemoteDevice("00:17:A0:01:56:9C"); print+=" "+device.getAddress(); BluetoothSocket tmpsock = null; int port=1; try { Method m = device.getClass().getMethod("createRfcommSocket", new Class[] { int.class }); tmpsock = (BluetoothSocket) m.invoke(device, Integer.valueOf(1)); tmpsock.connect(); InputStream is=tmpsock.getInputStream(); OutputStream os=tmpsock.getOutputStream(); os.write("1".getBytes()); print+=" Stampato"; os.close(); is.close(); tmpsock.close(); } catch (SecurityException e) { // TODO Auto-generated catch block e.printStackTrace(); print+="Security"; } catch (NoSuchMethodException e) { // TODO Auto-generated catch block print+="NoSuchMethodException"; e.printStackTrace(); } catch (IllegalArgumentException e) { // TODO Auto-generated catch block e.printStackTrace(); print+="IllegalArgumentException"; } catch (InvocationTargetException e) { // TODO Auto-generated catch block e.printStackTrace(); print+="InvocationTargetException"; } catch (IllegalAccessException e) { // TODO Auto-generated catch block e.printStackTrace(); print+="IllegalAccessException"; } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); print+="IOException"; } finally { t.setText(print); this.setContentView(t); } } }

public class Start extends Activity {
    private static final int REQUEST_ENABLE_BT = 2;
 
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        TextView t=new TextView(this.getApplicationContext());
        String print="";
        BluetoothAdapter adapter = null;
        adapter = BluetoothAdapter.getDefaultAdapter();
 
        //abilito il bluetooth se questo non lo è
         if (!adapter.isEnabled()) {
            Intent enableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
            startActivityForResult(enableIntent, REQUEST_ENABLE_BT);
 
        }
        BluetoothDevice device = adapter.getRemoteDevice("00:17:A0:01:56:9C");
        print+=" "+device.getAddress();
        BluetoothSocket tmpsock = null;
        int port=1;
 
        try {
            Method m = device.getClass().getMethod("createRfcommSocket", new Class[] { int.class });
            tmpsock = (BluetoothSocket) m.invoke(device, Integer.valueOf(1));
            tmpsock.connect();
            InputStream is=tmpsock.getInputStream();
            OutputStream os=tmpsock.getOutputStream();
            os.write("1".getBytes());
            print+=" Stampato";
            os.close();
            is.close();
            tmpsock.close();
 
        } catch (SecurityException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            print+="Security";
 
        } catch (NoSuchMethodException e) {
            // TODO Auto-generated catch block
            print+="NoSuchMethodException";
            e.printStackTrace();
 
        } catch (IllegalArgumentException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            print+="IllegalArgumentException";
 
        } catch (InvocationTargetException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            print+="InvocationTargetException";
 
        } catch (IllegalAccessException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            print+="IllegalAccessException";
 
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            print+="IOException";
 
        } finally {
            t.setText(print);
            this.setContentView(t);
 
        }
 
    }
 
}