Display Alert

//jad file (please verify the jar size)
/*
MIDlet-Name: DisplayAlert
MIDlet-Version: 1.0
MIDlet-Vendor: MyCompany
MIDlet-Jar-URL: DisplayAlert.jar
MIDlet-1: DisplayAlert, , DisplayAlert
MicroEdition-Configuration: CLDC-1.0
MicroEdition-Profile: MIDP-1.0
MIDlet-JAR-SIZE: 100

*/
import javax.microedition.lcdui.Alert;
import javax.microedition.lcdui.AlertType;
import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Form;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;

public class DisplayAlert extends MIDlet implements CommandListener {
private Display display;

private Alert alert;

private Form form = new Form("Throw Exception");

private Command exit = new Command("Exit", Command.SCREEN, 1);

private boolean exitFlag = false;

public DisplayAlert() {
display = Display.getDisplay(this);
form.addCommand(exit);
form.setCommandListener(this);
}

public void startApp() {
display.setCurrent(form);
}

public void pauseApp() {
}

public void destroyApp(boolean unconditional) throws MIDletStateChangeException {
if (unconditional == false) {
throw new MIDletStateChangeException();
}
}

public void commandAction(Command command, Displayable displayable) {
if (command == exit) {
try {
if (exitFlag == false) {
alert = new Alert("Busy", "Please try again.", null, AlertType.WARNING);
alert.setTimeout(Alert.FOREVER);
display.setCurrent(alert, form);
destroyApp(false);
} else {
destroyApp(true);
notifyDestroyed();
}
} catch (Exception exception) {
exitFlag = true;
}
}
}
}