KeepGenerated

[Dave Morrow <da...@autodata.net>]

Hi all, I recently made a change to my tomcat web.xml file in an effort
to avoid having to clear the work directory in an environment where
frequent code changes are being made.  I added the setting of
KeepGenerated=false.  

It appears that this change has had the desired effect and I no longer
need to clear the work directory after every deployment of a new WAR
file......but at the same time, the same applications have seen a
dramatic improvement in performance.

It's my understand that JSP compilers read JSP source files and
generate/compile Java servlet classes (.class binary). To get the
binary, there is an intermediary file: the Java source code of the
compiled servlet. (Note: .java is not a .class is not a .jsp. It goes
.jsp --> .java --> .class). "keepgenerated" is whether to keep the
servlet java source code after the class file is compiled. A reason to
keep servlet source code is to match a runtime error from the servlet
class to the matching JSP code that created the problem.

If my thinking is correct, the change in KeepGenerated should have
decrease performance?  Am I correct in this assumption?  
Does anyonw know of any drawbacks to what I have done?
 
Any advice would be greatly appreciated.
 
David Morrow
Technical Systems Lead
Autodata Solutions Company
David.Morrow@Autodata.net
http://www.autodatasolutions.com <http://www.autodatasolutions.com/> 
 
Tel: (519) 963-3020
Fax: (519) 451-6615
 
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