On Sun, 30 Jul 2017 14:32:53 +0300
Andrew Savchenko <bircoph@gentoo.org> wrote:

> For EAPI 6+ java-pkg-opt-2_src_prepare() has eapply_user call via
> java-utils-2_src_prepare() from java-utils-2.eclass. But
> java-utils-2_src_prepare() call is conditional and in case when
> package is build with USE=-java java-utils-2_src_prepare() is not
> called, hence eapply_user is not called in src_prepare phase and
> ebuild fails.
> 
> The following patch fixes this by calling eapply_user if java USE
> is disabled _and_ EAPI is 6+.

This makes sense so no problem here.

> [pedantic mode on]
> Strictly speaking when EAPI is other than [0-5]. The way java-*
> eclasses are now, they assume ![0-5] == 6+. It may be speculated
> that this is not entirely correct and many other eclasses
> explicitly deny all unknown EAPIs. If someone is interesting in
> fixing this issue, please handle it with the java team and do not
> mix it into the problem described at the beginning. My goal now is
> to fix eapply_user issue which cases trouble for any EAPI 6
> packages with optional java support and default src_prepare() at
> the ebuild scope.
> [pedantic mode off]

Agreed. I don't think java-utils-2_src_prepare() should be changed in
this regard as the behaviour may continue to be correct but the eclass
should have a global EAPI check that forbids anything beyond 6 like
other eclasses do.

-- 
James Le Cuirot (chewi)
Gentoo Linux Developer