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https://issues.apache.org/jira/browse/MNG-5728?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17239748#comment-17239748
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Robert Scholte commented on MNG-5728:
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I think this PR fixes this at the wrong place. Instead I believe we need to
change the default for repository, see
https://maven.apache.org/ref/3.6.3/maven-model/maven.html#class_releases.
While trying to fix the integration tests, I stumbled upon
https://github.com/apache/maven-integration-testing/blob/master/core-it-suite/src/test/resources/mng-3769/settings-template.xml
where the repo is explicitly set to 'ignore'. To me this should be the most
important value if you don't specify it from commandline.
> Switch the default checksum policy from "warn" to "fail"
> --------------------------------------------------------
>
> Key: MNG-5728
> URL: https://issues.apache.org/jira/browse/MNG-5728
> Project: Maven
> Issue Type: Improvement
> Components: Artifacts and Repositories
> Reporter: Nicolas Juneau
> Assignee: Robert Scholte
> Priority: Minor
> Fix For: 4.0.x-candidate
>
>
> The default checksum policy when obtaining artifacts during a build is
> currently, by default, "warn". This seems a bit odd for me since a checksum
> is usually used to prevent the use of corrupted data.
> Since Maven produces a lot of output (and some IDEs sometimes hide it), it is
> easy to miss a bad checksum warning. I am aware that there is a
> checksumPolicy setting in Maven, but, unless I am mistaken, it cannot be
> defined for all repositories at once. It has to be done either on a
> per-repository basis or by using the "strict-checksum" flag in the command
> line.
> After searching around a bit on the Web and with the help of a coworker, we
> discovered that the default "warn" setting was mainly there because some
> repositories were not handling checksums quite well. Issue MNG-339 contains
> some information about this.
> My colleague also chatted briefly with "trygvis" on IRC. Apparently, the
> default "warn" setting is really there for historical reasons.
> I believe that a default value of "fail" would greatly reduce the likelihood
> of errors and also slightly increase the security of Maven. Corrupted
> artifacts should not, by default, be used for builds.
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