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From Jeffrey E Care <>
Subject Re: [offtopic] jspc?
Date Fri, 27 May 2005 11:27:40 GMT
It depends on how large your application is, the typical workflow, etc. 

If you consider the WebSphere Admin Console (which is large, but not the 
largest I've ever seen), we precompile the JSPs to ensure that the first 
admin user to log in is saved the minor time delay that you get from JSP 
compilation. Catching errors is also useful.

All that said, we use our own JSP compiler instead of the one provided by 

Jeffrey E. Care (
WebSphere Build SWAT Team Lead
WebSphere Build Tooling Lead (Project Mantis)

Kev Jackson <> wrote on 05/27/2005 04:07:35 AM:

> Quick question
> I'm working on a rather boring web app with Spring/Hibernate etc (insert 

> current fad in Java Web Frameworks here).  And I was just browsing 
> around and saw jspc, and I remembered that there was an ant task..
> Is there any benefit at all from running jspc before building the war?
> I'm coming down on the side of useless except for catching JSP errors 
> before deployment, but is that even the case?
> Also I'm fairly certain that there was a comment recently about the jspc 

> being not exactly great (broken across different java versions IIRC)
> Any experiences worth relating?
> One interesting note is that I've discovered that jikes + Java5 runtime 
> produces code that runs fine on WebLogic 8.1 (jrockit 1.4), but javac + 
> Java5 runtime produces code that breaks inexplicably on the same 
> jrockit.  Note I'm not using any new Java5 features, so the compiler 
> doesn't have to be Java5 aware
> Kev
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