I seem to remember something about a known memory leak in javac 1.4 (not sure which version), which might affect you if you use javac and have many JSPs to compile - so that might be another argument for precompiling your jsps...
Nick -----Original Message----- From: Michiel Toneman [mailto:[EMAIL PROTECTED] Sent: 25 June 2004 10:29 To: Tomcat Users List Subject: Re: jspc A good reason to precompile your JSP files is to make sure you don't accidentally have broken JSP files on production. You then know *before* deployment if any changes to your JSP files or the java classes they belong to cause breakage. Michiel Paul Wallace wrote: >Hi, > Yes..that is what I thought, but I learned from a 'reliable' >source I could accomplish this on saving overhead. So rather than >looking into the whys and whats, I looked into how to do it, and look >into the performance benefits later. I will provide the list with my >sources reasoning, when it becomes available! > A thought..and to answer a question with a question (Why would >you precompile jsp files?), why is jspc there? If only to increase >performance on the first hit? > >Thanks > >Paul. > >It will increase speed on the first viewing of the jsp, but after that I > >can't see how there will be any difference. How much memory can you >save >if any? And how would that work? > >Thanks > >On Fri, 25 Jun 2004 11:12:44 +1000, Paul Wallace <[EMAIL PROTECTED]> >wrote: > > > >>In an effort to increase speed/free up memory that otherwise might be >>consumed by Tomcat otherwise >> >>Why would you precompile jsp files? >> >>On Fri, 25 Jun 2004 09:32:38 +1000, Paul Wallace <[EMAIL PROTECTED]> >>wrote: >> >> >> >>>(sorry, wrong key!) >>> >>>Hi Jason, >>> Thanks for that. Yes, it does make sense. A couple of things >>>though, I just ran it with -compile - great. But my query about the >>> >>> >>work >> >> >>>directory and was more towards what I am being 'encouraged' to do >>> >>> >from > > >>>the powers that be. I.e not WAR the app., but put it in the work >>>directory. Is this ill-advised/poor practice? >>> To accomplish this, is it as simple as dragging the compiled >>>source under my work directory, and modifying my web.xml as advised? >>> Why does -compile work, but not appear in the usage?! >>> Also, can I specify a path for the compilation, rather than the >>>classes be placed in the same dirs as the source? (I tried adding a >>> >>> >>path >> >> >>>after the -compile switch, but it constructed and compiled a file >>> >>> >with > > >>>the same name as the class directory destination). >>> >>>Do I make sense?! >>> >>>Paul. >>> >>>Paul, >>> >>>I just use the -compile option and have jspc do the >>>compilation from .java to .class for me. It seems to >>>work fairly well. Once all the fully compiled (ie >>>.class) files are placed in you applications >>>WEB-INF/classes directory you just need to place the >>>generated web.xml file in WEB-INF. There is an option >>>to create a complete web.xml file that you can place >>>in WEB-INF or, if you already have a web.xml file you >>>want to keep, you can have jspc create an xml fragment >>>that just contains the servlet definitions and >>>mappings that you then add (in the appropriate place) >>>to your existing web.xml. Then just war up you >>>application directory in the normal way (you can even >>>delete the jsps once your certain the servlet mappings >>>are working). >>> If you try to put the generated files in your >>>working directory you won't be able to war them up and >>>deploy them in the normal "put war file under webapps >>>directory and tomcat will expand it when it starts" >>>way. You'd have to ship a complete tomcat directory >>>structure with the work directory already filled in >>>with your compiled jsps. Does that make sense? >>> >>>Jason >>> >>>--- Paul Wallace <[EMAIL PROTECTED]> wrote: >>> >>> >>>>Hello, >>>> I have compiled my JSPs thus: >>>> >>>>jspc -webapp C:\src\site -d C:\src\site\classes -s >>>>-l -uriroot >>>>C:\src\site >>>> >>>>this builds the Java source files to the specified >>>>location, but how >>>>might I deploy them? >>>> >>>>What is a typical deployment after a JSP >>>>compilation? Compilation of >>>>Java source files, then WAR/JAR? Can I not define >>>>the JSP compile to go >>>>under my work directory? >>>> >>>>The purpose of my efforts is to try and speed up / >>>>make TC less memory >>>>consumptive. >>>> >>>>cheers >>>> >>>>Paul. >>>> >>>> >>>> >>>> >>>> -- Michiel Toneman Software Engineer Bibit Global Payment Services Regulierenring 10 3981 LB Bunnik [EMAIL PROTECTED] Tel. +31-30-6595168 Fax +31-30-6564464 http://www.bibit.com/ --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
