an Early Access build of the upcoming JFormDesigner 4.0 with GroupLayout support
(as in NetBeans GUI builder aka project Matisse) is available for testing.
It also supports JGoodies Forms 1.2, provides an improved "Choose Bean" dialog,
support for SwingX layout managers (VerticalLayout and HorizontalLayout), and more.
Note that the Early Access build is not available through the IntelliJ IDEA plug-in manager.
You have to download the ZIP and extract it to the IntelliJ IDEA plugins folder.
FormDev Software GmbH