Please file a report on bugzilla. If you also include a test case
(to save me some typing :)), I'll take a look to see where Jasper is
spending its time. Did you said it was in commons-el? That'd be bad.
-Kin-man
On Wed, 2004-10-20 at 00:43, Eric Blenkush wrote:
> On Oct 19, 2004, at 10:41 PM, Remy Maucherat wrote:
>
> > Eric Blenkush wrote:
> >
> >> Hi,
> >>
> >> On Tomcat 5.5.2 I am experiencing very long compile times(and hangs)
> >> for certain JSP pages. The page has an EL expression like this:
> >>
> >> ${fn:toUpperCase((fn:toUpperCase((fn:toUpperCase((fn:toUpperCase((fn:
> >> toUpperCase((fn:toUpperCase((fn:toUpperCase((fn:toUpperCase((fn:
> >> toUpperCase((fn:toUpperCase((fn:toUpperCase((fn:toUpperCase((fn:
> >> toUpperCase((fn:toUpperCase((fn:toUpperCase((fn:
> >> toUpperCase(('b'))))))))))))))))))))))))))))))))))))}
> >>
> >> If you remove the extraneous parenthesis it will compile and execute
> >> very quickly. However, if you add more nested calls to fn:toUpperCase
> >> compiling will again take a very long time. So, this may be related
> >> to the number of nested expressions. This is just a test case
> >> obviously but I am generating JSPs automatically and it is difficult
> >> if not impossible to avoid EL statements with these nested function
> >> calls. Resin can compile and execute these pages very quickly but I
> >> want to stick with Tomcat.
> >>
> >> This is crucial to the project I am working on and if someone has an
> >> idea of what is causing this and where to look in the tomcat source I
> >> would appreciate it.
> >
> > Please don't whine. I hope you have tested this with 5.0.x as well.
> >
> > If you have a compilation problem specific to the Java compiler, you
> > obviously should:
> > - report it to the Eclipse project
> > - use Ant + javac to compile instead (remove the
> > jasper-compiler-jdt.jar and put ant.jar at the same spot)
> >
> > You may want to try to generate efficient code.
> >
> > Any bug filed about the Eclipse compiler (other than an integration
> > issue) will be marked as INVALID.
> >
> > RÃmy
> >
>
> The hang is happening when the .java file is being generated from the
> .jsp file. I confirmed this by taking the commons-el-1.0 source and
> modifying it to parse the same EL statement as given above and it never
> completed.
>
> Any helpful comments on where to start looking to fix this are welcome.
>
> Thanks,
> Eric
>
>
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