There is a Free "The Bean Builder" here:
https://bean-builder.dev.java.net/

 The Bean Builder is a visual programming environment that demonstrates
the assembly of applications by joining live instances of JavaBeans.

This builder owes its lineage to the Bean Box that was included with the
original JavaBeans Development Kit and the original Java visual
programming environment: Java Studio.

The Bean Builder is a demonstration of the following technologies:

    * A long term persistence mechanism for archiving object graphs of
JavaBeans which was introduced in J2SE 1.4. This was driven by JSR 57.
See the Swing Connection article Long-Term Persistence for JavaBeans.
    * Dynamic adapter generation to hook up events using APIs. See
dynamic proxy classes. See the Swing Connection article Generating Event
Listeners Dynamically Using Proxies
    * Swing based Property Editors for editing: Fonts, Colors, Objects,
Dimension, Insets, Rectangles, etc,...

You launch the Bean Builder using Java WebStart.

Hope tis Helps...
IchBin
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'The meeting of two personalities is like the contact of two chemical
substances:
 if there is any reaction, both are transformed.'
-  Carl Gustav Jung,  (1875-1961),  psychiatrist and psychologist

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