Hi !
Featured games (85)
games approved by the League of Dukes
Games in Showcase (636)
Games in Android Showcase (178)
games submitted by our members
Games in WIP (688)
games currently in development
News: Read the Java Gaming Resources, or peek at the official Java tutorials
    Home     Help   Search   Login   Register   
Pages: [1]
  ignore  |  Print  
  Applet and Browser Refresh Hangs  (Read 1792 times)
0 Members and 1 Guest are viewing this topic.
Offline elias4444

Junior Devvie

« Posted 2004-03-11 01:06:17 »

Well, I once again call upon the great goodness of this forum...maybe I've just been doing too much Java programming lately?

Anyway...I'm stuck: I've created a fun little Java applet to run in a browser. It actually loads on multiple pages of a website. Only problem is, often when someone refreshes a page, the browser hangs. It happens in both IE and Mozilla.

So what else could I do? I open the Java Console to see what's going one while the browser is hung...the page instantly loads up and I never see an error. So, I then open the console before ever loading the pages...and then it never hangs.

I'd love to just tell everyone to leave their Java console open, but I don't think that's going to be very realistic. Has anyone seen this before? And more importantly, has anyone found a fix for it?

Offline Abuse

JGO Ninja

Medals: 42

falling into the abyss of reality

« Reply #1 - Posted 2004-03-11 15:13:15 »

Well, assuming users can refresh other pages containing Applets without causing a lockup, it is undoubtably your Applet that is the cause...
Without seeing any code its gonna be abit tough giving any further help.
Perhaps thread related - are you terminating your rendering Thread correctly (renderThread.join() in applet.stop())

Make Elite IV:Dangerous happen! Pledge your backing at KICKSTARTER here!
Offline elias4444

Junior Devvie

« Reply #2 - Posted 2004-03-11 15:55:12 »

Nope. I actually haven't written a stop() method into it. I thought the superclass of JApplet would take care of it. For an emergency solution I did the only thing I know how: In the run loop for the thread, I tell it to do manual garbage collection (gc()). That's really only a workaround, but it's kept things stable for now.

I've been learning a lot of this on my own, and I'm completely new to applets, so I apologize for my lack of intelligence here. I'm worried about overriding the stop() or destroy() methods since I figured I would probably make them worse. Is this a wrong assumption? If it is, does anyone have a good example of what they should look like?

Games published by our own members! Check 'em out!
Legends of Yore - The Casual Retro Roguelike
Offline Abuse

JGO Ninja

Medals: 42

falling into the abyss of reality

« Reply #3 - Posted 2004-03-11 20:54:33 »

Something along the lines of this :-

Thread me; //the render Thread
boolean running = false;
//called by the browser, to indicate it wants the Applet to start.
public void start()
   running = true;
   me = new Thread(this); //'this' class implements the Runnable interface
   me.start(); //start the render Thread

public void run()
   //your render loop


//called by the browser when it wants the Applet to terminate
public void stop()
   running = false;
   me.join(); //wait for the render Thread to complete cleanly

Make Elite IV:Dangerous happen! Pledge your backing at KICKSTARTER here!
Offline elias4444

Junior Devvie

« Reply #4 - Posted 2004-03-12 00:45:10 »

Thank you! Do I need to call super.stop() after that? And do I have to just copy the same code block for destroy()?

Pages: [1]
  ignore  |  Print  
You cannot reply to this message, because it is very, very old.

Dwinin (73 views)
2015-11-07 13:29:08

Rems19 (81 views)
2015-10-31 01:36:56

Rems19 (78 views)
2015-10-31 01:32:37

williamwoles (107 views)
2015-10-23 10:42:59

williamwoles (93 views)
2015-10-23 10:42:45

Jervac_ (111 views)
2015-10-18 23:29:12

DarkCart (135 views)
2015-10-16 00:58:11

KaiHH (118 views)
2015-10-11 14:10:14

KaiHH (157 views)
2015-10-11 13:26:18

BurntPizza (172 views)
2015-10-08 03:11:46
Rendering resources
by Roquen
2015-11-13 14:37:59

Rendering resources
by Roquen
2015-11-13 14:36:58

Math: Resources
by Roquen
2015-10-22 07:46:10

Networking Resources
by Roquen
2015-10-16 07:12:30

Rendering resources
by Roquen
2015-10-15 07:40:48

Math: Inequality properties
by Roquen
2015-10-01 13:30:46

Math: Inequality properties
by Roquen
2015-09-30 16:06:05

HotSpot Options
by Roquen
2015-08-29 11:33:11 is not responsible for the content posted by its members, including references to external websites, and other references that may or may not have a relation with our primarily gaming and game production oriented community. inquiries and complaints can be sent via email to the info‑account of the company managing the website of java‑
Powered by MySQL Powered by PHP Powered by SMF 1.1.18 | SMF © 2013, Simple Machines | Managed by Enhanced Four Valid XHTML 1.0! Valid CSS!