How to include a jsp file only once

Hi,

I have collected all my common jsp stuff in include.jsp that is included in all app jsp pages. Depending on business logic some jsp pages (say a.jsp) might redirect to other jsp pages (say b.jsp) - in this case the include.jsp would be included twice as part iof request and my app breaks

Does jsp have a "include once" feature - like PHP include_once or do I have to do messy stuff with request variables..

Thanks,

[444 byte] By [NielsPa] at [2007-11-27 8:26:55]