Versions of JDK required for different J2EE application servers

After installing and facing different issues with different J2EE application servers I have observed that Apache Geronimo and IBM Websphere Community Edition both works fine on JDK 1.6 update 1 and above*

Sun Glassfish gets installed on JDK 1.6 update 1, but after installation the admin console does not loads. This can be resolved by upgrading to JDK 1.6 update 14.

However, IBM Websphere Community Edition and Apache Geronimo are both similar. IBM Websphere Community Edition is based on Apache Geronimo, so they both have similar interface and configuration options.

* I have installed the above application servers on JDK 1.6 update 1 and JDK 1.6 update 14 only.