Hello,
With ProjectViewer and CtagsInterface plugins (in conjuction),
if the directory tree is not part of a project, you simply right click the root and select "Plugins -> Add source tree to tag index" to generate tags.

see also:
http://jedit.9.x6.nabble.com/Re-jEdit-devel-jEdit-users-ctagsinterface-tags-refreshing-td4999851.html

I don't know what is the tags engine of CtagsInterface; it could be that it is exueberant tags.

In any case, I am working with kernel source tree. When I am generating a tag file,
I am used to add some filters to the tag creation (not include architectures which I
do not need; including them increases the possible options when jumping to methods which
has the same name in different architectures.

I tried to work with CtagsInterface without creating a special project in ProjectViewer;
when I click the root of a kernel tree and select "Plugins -> Add source tree to tag index" to generate tags, it takes a lot of time and it traverses all the kernel tree.

Is there a way to add filter to the tags creation?
(like: --exclude=arch/ia64, which I use when I create my tags with exuberant tags)

regards,
Kevin