> 2. Can we upgrade jdk1.5 to jdk1.7 directly ?
jdk 1.7 is backward compatible, that should work.
> 3.As JBoss7.1 is latest version why can't we use latest version , why use JBoss5.1 ?
I would suggest EAP6 which is based upon JBoss 7.1, and then you can follow this documentation
> 4. What are the steps/approach to be followed to migrate Weblogic9.1 to JBoss5.1
When migrating between any Java EE servers you needed to migration the application required server config
resources, (i.e. datasources, messaging step up ... etc). You must replace any server vendor specific APIs
with appropriate stnd APIs or add code as needed. Check you code for package names containing "weblogic".
This is articulated in the above document.
This is a new open source tool Windup that will help you with this. see https://github.com/windup/windup.
Thank you very much for you answers . I will now try to Migrate the application in the following manner
Weblogic9.1(JDK1.5) ----> JBoss1.6(JDK1.7) .
Once I migrate it to JBoss1.6 ,I can then move it to JBoss1.7 JBoss1.6 --->JBoss1.7.
Correct me if I am wrong .
> Once I migrate it to JBoss1.6 ,I can then move it to JBoss1.7 JBoss1.6 --->JBoss1.7.
Yes. this can be done.
Is their a technical reason you feel you need to go to JBoss 6 and then JBoss 7?
Why not just go to JBoss 7?