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https://issues.apache.org/jira/browse/MDEP-750?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Elliotte Rusty Harold closed MDEP-750.
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> 2.10:tree -Dverbose shows "for duplicate" where "for conflict" is expected
> --------------------------------------------------------------------------
>
> Key: MDEP-750
> URL: https://issues.apache.org/jira/browse/MDEP-750
> Project: Maven Dependency Plugin
> Issue Type: Bug
> Components: tree
> Affects Versions: 2.10
> Environment: Apache Maven 3.8.1
> (05c21c65bdfed0f71a2f2ada8b84da59348c4c5d)
> Java version: 1.8.0_201, vendor: Oracle Corporation, runtime: C:\Program
> Files\Java\jdk1.8.0_201\jre
> OS name: "windows 10", version: "10.0", arch: "amd64", family: "windows"
> Reporter: Atsushi Nakagawa
> Priority: Major
> Attachments: pom.xml, tree-verbose.txt
>
>
> I'm not sure what the support status of 2.10 is but here goes. At the least
> maybe this is a documentation issue and {{-Dverbose}} should just be taken
> with a grain of salt, or perhaps this is a test case for any future
> implementations.
> In brief:
> Running {{mvn -B org.apache.maven.plugins:maven-dependency-plugin:2.10:tree
> -Dverbose}} shows "omitted for duplicate" where "omitted for conflict" is
> expected.
> I have attached a minimum pom.xml for reproducing the issue and the output
> from running the above command. (Output shows a warning regarding
> inconsistencies between Maven 2 vs 3 but I'm presuming this is an issue
> regardless that pertains to version 2.)
> Points of note:
> * These two lines are contradictory because it shows 2.10.3 as the version
> used for "jackson-databind" but no conflict message is emitted when it
> tramples 2.12.3:
> ** com.fasterxml.jackson.core:jackson-databind:jar:2.10.3:compile
> ** (com.fasterxml.jackson.core:jackson-databind:jar:2.12.3:compile - omitted
> for duplicate)
> * Hierarchy printout shows
> "com.fasterxml.jackson.core:jackson-databind:jar:2.10.3:compile" as a
> dependency of "software.amazon.awssdk:sdk-core:jar:2.16.62:compile" but the
> pom for the former actually depends on version 2.12.3.
> Other noteworthy points:
> * "jackson-databind:jar:2.12.3" is three plus levels deep and first (via
> sts) while 2.10.3 is two and second (via java-jwt) so 2.10.3 wins by
> nearest-wins. (Assuming this is how it works.) The issue is only with the
> conflict message printout.
>
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