[040715 dev from CVS]
1. Open NB Project OpenAPI
2. Browse in Project Explorer Window and find
   org.openide
   \- WizardDescriptor.java
    \- WizardDescriptor.
   (don't open it in the editor yet!!!)
3. Open Properites in this java node
   (right click->Properties)
4. Open Javadoc editor by clicking on [...] button
in Javadoc Comment property
5. Press OK (don't change anything)
6. Close Properties
7. Open the file in the editor
-> you will get:
/** 
Implements a basic "wizard" GUI system.
A list of <em>wizard panels</em> may be specified
and these
may be traversed at the proper times using the
"Previous"
and "Next" buttons (or "Finish" on the last one).
@see DialogDisplayer#createDialog
@see <a
href="doc-files/wizard-guidebook.html">Wizard
Guidebook
(describes the set of properties controlling the
display of wizard panels)</a>
 *//

There are 2 issues:
a) it removed all trailing " *" on each line
b) the end of comments has 2 slashes, which makes
the file uncompilable

Try to undo it and you'll see how many steps needs
to be undone.

If you do it on a file that's opened already, it
still removes all trailing lines, but it doesn't
add second slash.

It's reproducible on any file.