Migrating application from Oracle APEX to JAVA

We are one of the groups inside oracle. We have an application developed in Oracle APEX. Now we would like to migrate/implement with JAVA. I have idea about APEX development and hosting. Can anyone help me to list out required software/hardware/server/tool/storage to develop as well as host Application by using java.
Any help is appreciated.
Thanks.
Akie.

This message is from Developer Forum in OTN Oracle.
... "There are no plans at Oracle to stop support for Oracle Forms.
However you should note that support for client-server deployment does have a dead-line (January 05 with extended support until January 08).
The Web deployment of Forms has no de-support plan for it. We are actually working on the features for the next releases of Oracle Forms right now. "
As you can see support for Oracle Forms with Clien/Server arquitecture will be finished on January/05 because they are moving to Web Development.
Additionally they want to mature their JDeveloper until reaches an full integrated tool for Web Development and they are in a good path.
Thank you my friends

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