I have a JavaFX application that has only one scene that has a Label that is suppose to show the current time in "hh:mm:ss" format and another Label that is suppose to show the current date in either "12/12/12" or "12-12-12". Either would be fine. In the controller I have created two methods that are called on initialization to start a thread for updating the two Labels. The idea is to update the clock every 500ms and the date every one minute or 60000ms. Below shows the code I am using and they are basically the same with the exception of the sleep time and the Label being updated. Here is the error and my code:
WARNING: Uncaught throwable in javafx concurrent thread pool
java.lang.IllegalStateException: Not on FX application thread; currentThread = Thread-4
private void startClockUpdateService() {
Service<Void> clockBackgroundThread = new Service<Void>(){
@Override
protected Task<Void> createTask() {
return new Task<Void>(){
@Override
protected Void call() throws Exception {
while(true){
SimpleDateFormat sdfClock = new SimpleDateFormat("hh:mm:ss");
String date1 = sdfClock.format(new Date());
timeLabel.setText(date1);
Thread.sleep(500);
}
}
};
}
};
clockBackgroundThread.restart();
}
private void startDateUpdateService() {
Service<Void> clockBackgroundThread = new Service<Void>(){
@Override
protected Task<Void> createTask() {
return new Task<Void>(){
@Override
protected Void call() throws Exception {
while(true){
SimpleDateFormat sdfClock = new SimpleDateFormat("MM-dd-yyyy");
String date1 = sdfClock.format(new Date());
dateLabel.setText(date1);
Thread.sleep(60000);
}
}
};
}
};
clockBackgroundThread.restart();
}
I have noticed that it seems like the format "hh:mm:ss" seems to be causing the problem because when I exchange it for the date format "MM-dd-yyyy" everything seems to work fine. Any ideas?
