ecacavelos,
Sorry that you are seeing this issue.
Can you answer some more questions for us to help replicate the issue at our end?
1. Can you please copy paste the Installation Details from MyEclipse > Installation Summary > Installation Details ?
2. Which version of EJB are you working with? JBoss 4 does not support hot deployment for EJB3.0. The project has to be redeployed for the EJB changes to be picked up.
3. After a redeploy if the timestamp changes and the changes are not reflected, then its the Jboss server which is an issue. The server has to pick up the changes.
4. Which browser are you working with ? It might also be an issue with the browser in picking up the latest changes. Can you check with any other available browser?
If you are using IE8 then you can set IE8 to “check for newer versions of stored pages every time I visit the webpage”, and using CTRL+F5 to refresh.
Let us know how it works for you.