[MDEP-569] copy fails on artifacts previously downloaded via get from repo specified via CLI

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 3.0.1
• Component/s: copy, get

Environment

Apache Maven 3.5.0 (ff8f5e7444045639af65f6095c62210b5713f426; 2017-04-03T19:39:06Z)
Maven home: /usr/share/maven
Java version: 1.8.0_121, vendor: Oracle Corporation
Java home: /usr/lib/jvm/java-1.8-openjdk/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "4.8.0-52-generic", arch: "amd64", family: "unix"

• Assignee: Unassigned
• Reporter: Tom Wieczorek
• Created: 01/Jun/17 07:37
• Updated: 25/Oct/20 09:09

Description

dependency:copy fails to copy artifacts that were previously downloaded via dependency:get from a remote repository that has been specified on the command line. The error message is:

The POM for artifact is missing, no dependency information available

and later on

Failed to execute goal dependency:copy (default-cli) on project standalone-pom: Unable to find/resolve artifact. Failure to find artifact in https://repo.maven.apache.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced

But: dependency:get actually succeeded and the artifact and its POM are in the local repo.

Reproducing shell snippet

mvn -version
mvn org.apache.maven.plugins:maven-dependency-plugin:3.0.1:get \
    org.apache.maven.plugins:maven-dependency-plugin:3.0.1:copy \
    -DremoteRepositories=http://packages.confluent.io/maven/ \
    -Dartifact=io.confluent:kafka-schema-registry:3.1.1
ls -la ~/.m2/repository/io/confluent/kafka-schema-registry/3.1.1

I've attached the output of the above test snippets.

Issue Links

• is related to: MNG-7001 Reconsider seemingly useless check of artifacts' source repository introduced in Maven 3.0