Re: [gentoo-user] cause jdk1.5 emerge tomcat error!

[Boyd Stephen Smith Jr.]

On Saturday 13 May 2006 03:19, "wu chuanwen" <wcw8410@×××××.com> wrote 
about 'Re: [gentoo-user] cause jdk1.5 emerge tomcat error!':
> 2006/5/13, Boyd Stephen Smith Jr. <bss03@××××××××××.net>:
> > Change your system javac to a 1.4 for the emerge of commons-daemon.
> > The resulting class/jar files will run in a 1.5 vm -- since enum and
> > assert (introduced in 1.4) are both still valid identifiers in
> > bytecode under a 1.5 vm.
>
> How can i change my javac to 1.4?

Use java-config.

> You mean re-emerge sun-jdk1.4?

You will have to have /a/ 1.4 javac, not necessarily Sun's.

> Is
> there any other ways?

Sure, write and apply a patch to tomcat that removes all uses of enum as an 
identifier.  For extra points, submit it back to the community.

Or write and apply a patch to tomcat's native build process and/or the 
ebuild so that '--source 1.4' and possibly '--target 1.4' is passed to 
javac whenever it is called.  I'd say give this back to the community, 
too, but we probably don't want it:  Passing those options unconditionally 
breaks backwards compatibility and forward progress.

-- 
"If there's one thing we've established over the years,
it's that the vast majority of our users don't have the slightest
clue what's best for them in terms of package stability."
-- Gentoo Developer Ciaran McCreesh