UI Controls for Java

go for

1. Qt Jambi
2. jgoodies
3. SwingX
4. SWT
5. NetBeans Platform
6. Eclipse Rich Client Platform

You can also use New Kendo Framework introduced by Telerik.

I think it depends in the IDE you are using. WebLogic has custom controls (http://download.oracle.com/docs/cd/E13196_01/platform/docs81/isv/controls.html) as well as instructions on how to create your own custom controls.

Cheers,

Ujjwal Soni