Is it possible to debug a portlet on Websphere Portal?

I'm using Rational Application Developer to develop JSR168 portlets and deploy them to Websphere Portal 6.1. Now I want to debug them.

What I want to do is this workflow:

Develop the portlet and set a breakpoint
Start Portal in debug mode
Deploy the portlet using the right mouse button context menu in RAD
Open portal, create a page, place the portlet
Start the action that should get me to the breakpoint
Use the debug perspective in RAD to debug

Is it possible and is there a tutorial out there?

Solution

The process of setting up a portal server on your local development machine is pretty straight forward. I didn't find the setup information at first, but they're available on IBMs website at https://www-304.ibm.com/support/docview.wss?uid=swg21330952 for Portal 6.1.

The installation took me a couple of hours, but after that you can add Portal in your Rational Application Developer and start it. That's painfully slow on an older machine, and you really want to have 4GB RAM for using it daily.

If Portal is running, right-click your portlet project and choose Deploy portlet... from the context menu. The portlet will be deployed.

I have to check, if @Nachtfrost is right with the cleanup of temp directories to re-enable the right-click deployment.

If right-click deployment does not work for you, try this approach: (this will not allow you to debug your portlets! It's only meant as a workaround to run them at all)

Export your portlet as WAR (right-click the project, choose Export... from context menu
Right-click Portal in your Servers view and choose Open Portal from the context menu
Log in as admin, go to Administration
Go to the web applications menu (I'm writing this from memory, so try to find the menu somewhere around the Portlet administration menu)
Install your portlet from the WAR file, like any other web app
Create a new page, place your portlet on that page