Cannot load PetStore app homepage in browser

downloaded and installed JDK, SDK, and Java Pet Store 2.0 Reference Application, followed all instructions (like setting up environmental variables), compiled successfully and built successfully (using Ant), and when it launched the app homepage to my browser, i got a HTTP Status 404 error page:

Type: status report

Description: The requested resource () is not available.

the url it tried to load was http://localhost:8080

do i need to change my javaee.server.name or javaee.server.port to something else?

[538 byte] By [Zelnicka] at [2007-11-26 18:44:46]