Here's an (invisible) test tag:
[
Number between 0.00 and 100.00.
JEditorPane Docs
mailto link to allen, subject=hello world
bogus link to .html file
.txt file
http://www.holub.com/ (end slash)
http://www.holub.com (no end slash)
http://www.holub.com (target=_blank)
http://www.test.com/submit.html via host map, target=_blank