How are you trying to "run" the .html file, exactly? If you are opening it as a local file, be aware that Java in general does not allow applets to run locally. You might in this case have better luck if you actually upload the files to a web server and access them via a http: URL. Maybe. I guess reading the JavaWebStart documentation online would be a good start.

I published the game on the following website: http://worthwhiletest.freetzi.com/Worth%20While%20Test.html There is an error with the java version and so i cannot run the game except it runs fine when i publish it on greenfoot, i have added the required url's in my java exception list just like i did for greenfoot; is there anyway I can resolve this error or upate the java version the app runs?

i fixed it, here is an updated link, however now there is a different issue; the game is playable except you have to block unsafe components from greenfootscenarioviewer; if you unblock it the game doesn't work. This doesn't occur when it is published on greenfoot.

I get lots of warnings about the jar file containing a mix of signed and unsigned content, and missing attributes in the manifest: Missing Application-Name manifest attribute for: http://worthwhiletest.freetzi.com/WorthWhileTest.jar Missing Permissions manifest attribute in main jar: http://worthwhiletest.freetzi.com/WorthWhileTest.jar It also looks as if the JLayer library has been incorporated into the main jar file. So, I don't know how you produced this jar file, but it wasn't just by a "web export from inside Greenfoot" - you've done other things to it, and I'm fairly sure that's why it's not working.

Interesting; the game runs fine for me on my browser right now, at worthwhiletest.freetzi.com; i fixed the earlier issue but apparently the game isn't running for anyone else. Any ideas what is wrong? I believe I have fixed the issue, it should run for you. Please let me know whether or not it runs.