Re: Different plugin classpath in Maven 3.6.3 and 4.0.0?

[Robert Scholte <rf...@apache.org>]

I've created MNG-7110 to track this issue

Robert


[1] https://issues.apache.org/jira/browse/MNG-7110
On 27-2-2021 13:27:04, Robert Scholte <rf...@apache.org> wrote:
Interesting, MavenProjects classrealm is null with Maven 4 (Unlike Maven 3.6.3). I don't see any relation with that particular commit yet.
This needs more investigation.

Robert
On 23-2-2021 17:32:15, Mirko Friedenhagen <mf...@gmx.de> wrote:
And now I was able to reproduce this:

https://github.com/mfriedenhagen/plugin-classpath-maven-3-and-4

mvn clean verify succeeds with 3.6.3 and breaks with 619973b91cff5af7b5695bda11761a982a159349 ff.



> Am 23.02.2021 um 14:42 schrieb Mirko Friedenhagen :
>
> Not that deep in bisecting as of now. I wrote a small script `bisect`:
>
> ```
> #!/bin/bash -e -p
> mvn -q -B -s ~/.m2/settings-oss.xml clean package -Dmaven.test.skip=true -Denforcer.skip=true -Drat.skip=true
> bin_tar_gz=apache-maven/target/apache-maven-[3,4]*-bin.tar.gz
> test -f $bin_tar_gz
> gunzip -dc $bin_tar_gz | (cd /tmp/ && rm -rf apache-maven-*-SNAPSHOT && tar x)
> cd $HOME/ghq/gitlab.example.com/group/failing-project
> /tmp/apache-maven-*-SNAPSHOT/bin/mvn -B -V -q clean verify -DskipTests
> ```
>
> Running:
> ```
> $ git bisect start 84a1ff2d5cb7bf49fa3171dd92f7ac088e837185 maven-3.6.3
> $ git bisect run ./bisect
> ```
>
> led to:
>
> ```
> $ git bisect log
> # bad: [84a1ff2d5cb7bf49fa3171dd92f7ac088e837185] [MNG-7063] Add unittest to ensure rereading a pom won't return the cached Model
> …
> # first bad commit: [619973b91cff5af7b5695bda11761a982a159349] [MNG-7063] Infinite loop using Shade plugin and JUnit 5 dependency
> ```
>
> Best Regards
> Mirko
>
>
>> Am 23.02.2021 um 10:21 schrieb Michael Osipov :
>>
>> Am 2021-02-23 um 10:16 schrieb Mirko Friedenhagen:
>>> Hello Michal, hello Robert,
>>> Thanks for the answers.
>>> I am trying to reproduce this with a smaller project, but it is quite hard. The problem occurs with an inhouse project where we use inhouse plugins etc. We manage the lifecycle of standard packagings as well in the the extension. I wrote a FOSS derivate (not widely use) and will try to give a small example.
>>> Robert, did you mean to bisect the maven-core?
>>
>> Yes, he did. This is what I would do.
>>
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