Bug#906785: version warping patch is overly aggressive

[Keith Packard]

Markus Koschany <apo at debian.org> writes:

> I'm waiting for Emmanuel to chime in now. Maybe I missed something
> important. Otherwise I think we can resolve this issue rather quickly.
> Since Ant isn't the only build system for Java, we probably should
> change this for Maven too. We haven't implemented the same for Gradle
> yet. [1]

We only discovered that ant was the source of trouble by comparing the
output of a project built using that and another project build using a
simple Makefile.

If you're going to stop supporting older API versions, I'd suggest that
the tool should exit with an error status rather than silently
corrupting the build process. We spent a couple of days tracking down
this issue, which would have been obvious had the package build simply
failed when it used -target 1.4.

-- 
-keith
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