What is the difference between jboss 4 and jboss 5

Systems Integration. Legacy Business Systems. About Us. Our Team. Contact Us. Quartz as a message queue The Quartz library was used as a native message queue in previous JBoss versions. Quartz as a job scheduler We had multiple cron-like jobs to migrate as well.

These represent the most common combinations that JBoss Enterprise Middleware customers are using. For these configurations, Red Hat has directly, or through certified partners , exercised our full range of platform certification tests as part of the product release process. Issues identified as part of this testing process are highlighted in release notes for each JBoss EAP release.

This list of certified configurations will expand over time. Red Hat relies on the testing and certification process of the underlying JVM for platform compatibility. Why do this? Because JBoss4 and JBoss5 are built on top of Tomcat as their web container, upgrading JBoss4 to JBoss5 will involve getting a list of each JBoss 4 features you are using that Tomcat did not provide you, and going through the JBoss5 equivalent feature.

If any of these features have changed from JBoss 4 to 5, then obviously you will need to make changes to fix the issue. It might even be the case that a feature that used to exist in JBoss4 has been completely refactored out of JBoss 5. Once you have a list of all the JBoss features that you are utilizing, you will need to research the release notes to gather all relevant changes that have occurred that might affect your web applications on Jboss 5.

I will then open up the jboss 5. As a result of my search, I find the following modifications have been made that have a potential to affect my Jboss 4 EJBs:. Jboss 4. Jboss 5. So I would then go through this list and make appropriate changes before even trying to deploy the Jboss5 system.

As a part of this effort, we decided to upgrade Spring2 to Spring This shows all the changes made from version 4 to version 5. This shows all the changes made from version 5 to version 6. Taking the liberty of documenting a discussion about this I had on irc. You will undoubtably face this discussion while upgrading from any jboss version to a newer version that isn't the latest. This is because JBoss stops development on any older versions that are not the latest.

They then proceeded to move there, then hit a bundle of incompatibilities. Couldn't embed activemq, their Seam application stopped working for reasons unknown, and a bunch of other stuff. I've experinced the opposite. Started the migrated path from 4. GA to AS5, found issues, went to AS6, found more issues, and now it was too late to go back read: too many changes! So my conclusion was AND IS , is that if you ever think about upgrading your JBoss to something more current read: 4,5,6 please don't forget that if you run into ANY problems you most likely won't get support.

Pros: Puts you on supported software, bug fixes don't have to be done by making your own private branch. Prevents a second or third migration process you will have to do anyway in the future.

You can push your own branch with fixes you suggest if you like and the community will actually consider these for an actual release. Yes, we're very interesting in this topic because JBoss 4. Recently, we have registered hackers attacks in order to bitcoin mine, by some security fail of this JBoss version.

The question is, 4. I think you'd get better answers on the JBoss community forum. McDowell McDowell k 29 29 gold badges silver badges bronze badges. Some of the differences: The configuration is so much better and simpler.

Instead everything is one central place. All ports are configured in one central place, there is no longer an XSL file that transforms server. You can make sense of the configuration file without knowing the implementation details of classes. It's hard to appreciate this if you've never configured a JBoss 5. The class loading model looks sane and you get a lot of control through jboss-deployment-structure. The EJB client library looks much more cleaned up.

Faster start up and less memory usage. Our live dataset is somewhere above MB. There are still a lot of very basic servlet bugs being fixed in undertow. Philippe Marschall Philippe Marschall 4, 1 1 gold badge 29 29 silver badges 49 49 bronze badges. Vadzim Vadzim The Overflow Blog. Podcast Explaining the semiconductor shortage, and how it might end.