Excerpt from Statemachine that responds to button press to perform benchmark.

StateMachine.java

protected void onMain_BtnTowerOfHanoiAction(Component c, ActionEvent event) {
        final Label towerOfHanoiLabel = this.findLblTowerOfHanoi();
        towerOfHanoiLabel.setText("Calculating.... Please wait");
        if ( isCalculatingHanoi ){
            return;
        }
        isCalculatingHanoi = true;
        
        Thread t = new Thread(new Runnable(){

            public void run() {
                long start = System.currentTimeMillis();
                TowersOfHanoi.move(30, 1, 3);
                long end = System.currentTimeMillis();
                calculationTime = end - start;
                isCalculatingHanoi = false;
                Display.getInstance().callSerially(new Runnable(){

                    public void run() {
                        towerOfHanoiLabel.setText("Calculation took "+calculationTime+"ms");
                    }
                
                });
            }
            
        });
        t.start();
        
    
    }