Hi everyone,
There's a new patch to the plexus-compiler libraries which improves the
parsing of the output messages, especially for annotation processing.
Previously, a lot of non-error messages caused plexus-compiler (and
thereby, Maven) to think a compilation error had occurred. The patch
fixes this by using the javax.tools APIs to work with in-process
compilation.
The patch is here:
https://github.com/sonatype/plexus-compiler/pull/6
The issue is here (it's been out there for a LONG time, as you can see:
http://jira.codehaus.org/browse/PLXCOMP-1
The javax.tools APIs are JDK 1.6+ IIRC, so merging this patch would
effectively drag the future of the maven-compiler-plugin up to requiring
JDK 1.6. Personally, since JDK 1.5 has been out almost as long as I've
been coding (well, not too far), I don't see the problem. Remember,
we're not asking people to upgrade their production VM, only the
build-time version...and we have documented strategies for targeting
older VM versions successfully.
We might look at strategies for degrading gracefully in case someone is
using JDK 1.5, but IMO we need to be very careful about this. For
instance, I wouldn't want people to wind up with unexplained, random new
errors because they accidentally set their $PATH wrong. But maybe we
could give them a large warning then switch over to forked-mode
compilation in this case?
I'd really hate to see this patch go unmerged because we're stuck
supporting JDK 1.5...or if we do reject it on these grounds, maybe we
need to talk about when it's reasonable to jump ship on 1.5 if not now?
I'd LIKE to merge this patch, release plexus-compiler, and document how
to use it as a plugin-level dependency...then make the move to 1.6 for
the compiler plugin.
Thoughts?
-john
--
John Casey
Developer, PMC Member - Apache Maven (http://maven.apache.org)
GitHub - http://github.com/jdcasey
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