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https://issues.apache.org/jira/browse/MCOMPILER-194?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16406281#comment-16406281
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Alexander Kriegisch edited comment on MCOMPILER-194 at 3/20/18 1:07 PM:
------------------------------------------------------------------------
Update because [~aclement] asked my via e-mail if he should trigger some
changes in AspectJ Maven (even though he is actually not the maintainer there).
I suggested to build the current snapshot of Maven Compiler Plugin on my own
box and check if the patch attached to MCOMPILER-209 (cannot add link because
Jira messes up the URL) fixes the problem. It does, at least symptomatically.
That means:
* When using {{<useIncrementalCompilation>true</useIncrementalCompilation>}}
or just nothing (default), incremental compilation works as expected
* When switching to {{false}}, compilation in my AspectJ project breaks
because Maven Compiler thinks it needs to recompile one file, which is also to
be expected.
*Attention:* While this fixes the problems with AspectJ Maven in combination
with Maven Compiler, I do not know whether it fixes the root cause or is merely
a symptomatic fix and should actually be addressed in another way or maybe even
in AspectJ Maven. What I can say is that with Maven Compiler 2.5.1 my sample
project works, as of 3.0 it stops working. Probably incremental compilation was
introduced in 3.0, I did not check though. The
[commit|https://github.com/apache/maven-compiler-plugin/commit/82aabadbad6b8cda637bf4fc4959cb7028fd00c6]
by [~olamy] to make it configurable via a switch which is modified by the
patch mentioned above was introduced later, though, i.e. for version 3.1.
So what does that mean to you experts here? [~aclement], [~oliver.gierke], did
incremental compilation as such break interoperability with AspectJ Maven to
begin with or is there a problem in the way it was implemented here or there?
You have the facts now, please draw your conclusions.
was (Author: kriegaex):
Update because [~aclement] asked my via e-mail if he should trigger some
changes in AspectJ Maven (even though he is actually not the maintainer there).
I suggested to build the current snapshot of Maven Compiler Plugin on my own
box and check if [this
patch|MCOMPILER-209:^MCOMPILER_209_reversed_if_else_branches_for_useIncrementalCompilation_flag.patch]
from MCOMPILER-209 fixes the problem. It does, at least symptomatically. That
means:
* When using {{<useIncrementalCompilation>true</useIncrementalCompilation>}} or
just nothing (default), incremental compilation works as expected
* When switching to {{false}}, compilation in my AspectJ project breaks because
Maven Compiler thinks it needs to recompile one file, which is also to be
expected.
*Attention:* While this fixes the problems with AspectJ Maven in combination
with Maven Compiler, I do not know whether it fixes the root cause or is merely
a symptomatic fix and should actually be addressed in another way or maybe even
in AspectJ Maven. What I can say is that with Maven Compiler 2.5.1 my sample
project works, as of 3.0 it stops working. Probably incremental compilation was
introduced in 3.0, I did not check though. The
[commit|https://github.com/apache/maven-compiler-plugin/commit/82aabadbad6b8cda637bf4fc4959cb7028fd00c6]
by [~olamy] to make it configurable via a switch which is modified by the
patch mentioned above was introduced later, though, i.e. for version 3.1.
So what does that mean to you experts here? [~aclement], [~oliver.gierke], did
incremental compilation as such break interoperability with AspectJ Maven to
begin with or is there a problem in the way it was implemented here or there?
You have the facts now, please draw your conclusions.
> Strange effects with springs @Configurable (AspectJ) and new compiler plugin
> version 3.0
> ----------------------------------------------------------------------------------------
>
> Key: MCOMPILER-194
> URL: https://issues.apache.org/jira/browse/MCOMPILER-194
> Project: Maven Compiler Plugin
> Issue Type: Bug
> Affects Versions: 3.0
> Environment: jdk 1.6.0_38, jdk 1.6.0_37
> Reporter: Andreas Höhmann
> Assignee: Michael Osipov
> Priority: Blocker
> Attachments: MCOMPILER-194.zip, SO_AJ_MavenSoftExceptions.zip
>
>
> I have no details I can only report the "effects" ..
> I have a maven project with compiler-plugin 2.5.1,
> aspectj-plugin 1.4, java 1.6 and a lot of @Configurable
> annotations in my code. Aspectj will decorate these classes
> so @Autowired dependencies injected during runtime.
> All is working fine.
> Now I switch to compiler-plugin 3.0 ... nothing else changed!
> Then "sometimes" I got NPE's because the injected service etc. are
> not available. I guess aspectj was not successfull. I have no
> errors etc. anywhere during build.
> Strang :)
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