Any migration issues I should consider in moving from GlassFish v1 to GlassFish v2?

Sridatta Viswanath:

No, not that I am aware of currently. Both GlassFish v1 and v2 are Java EE 5-compliant servers. We have tested them thoroughly to make sure that they are in fact compatible. We provide an upgrade tool that can do the migration for you directly. You will be able to upgrade from the v1 to v2 developer profile easily. Please let us know your experience – that will help us improve GlassFish.