The preferred way to send bug reports is to use the Sourceforge Bug Tracker at http://sourceforge.net/tracker/?atid=565475&group_id=588 Please start the report subject with the text "ProjectViewer:".
You can also write to:
Stefan Kost <ensonic@sonicpulse.de>;
or jEdit-users mailing-list <jedit-users@lists.sourceforge.net>;
or jEdit-devel mailing-list <jedit-devel@lists.sourceforge.net>.