[MDEP-785] dependency:go-offline does not download all dependencies

[jira-importer]

Wei Lin opened MDEP-785 and commented

It appears the go-offline goal of the maven dependency plugin downloads only jar but no pom for some of the dependencies, and only pom but no jar for some other dependencies.

Steps to reproduce

1. Resolve the pom in attached tar ball

$ docker run -it --rm -v $(greadlink -f demo):/tmp/demo:ro maven:3.8.4-eclipse-temurin-11-alpine bash
bash-5.1# mvn -B -f /tmp/demo/pom.xml dependency:go-offline

2. Verify some jars and poms are missing

bash-5.1# ls ~/.m2/repository/org/apache/maven/maven-core/2.0.6/
_remote.repositories       maven-core-2.0.6.jar       maven-core-2.0.6.jar.sha1

bash-5.1# ls ~/.m2/repository/org/apache/maven/maven-profile/2.0.6/
_remote.repositories          maven-profile-2.0.6.pom       maven-profile-2.0.6.pom.sha1

3. maven test requires more files to be downloaded

bash-5.1# mvn test                                                                                                                                                           [0/1962]
[INFO] Scanning for projects...
[INFO]
[INFO] --------------------------< org.example:demo >--------------------------
[INFO] Building demo 1.0-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ demo ---
Downloading from central: https://repo.maven.apache.org/maven2/org/apache/maven/maven-core/2.0.6/maven-core-2.0.6.pom
Downloaded from central: https://repo.maven.apache.org/maven2/org/apache/maven/maven-core/2.0.6/maven-core-2.0.6.pom (6.7 kB at 3.5 kB/s)
Downloading from central: https://repo.maven.apache.org/maven2/org/apache/maven/maven-plugin-parameter-documenter/2.0.6/maven-plugin-parameter-documenter-2.0.6.pom
........

4. Verify the missing files are downloaded

bash-5.1# ls ~/.m2/repository/org/apache/maven/maven-profile/2.0.6/
_remote.repositories          maven-profile-2.0.6.jar       maven-profile-2.0.6.jar.sha1  maven-profile-2.0.6.pom       maven-profile-2.0.6.pom.sha1
bash-5.1# ls ~/.m2/repository/org/apache/maven/maven-core/2.0.6/
_remote.repositories       maven-core-2.0.6.jar       maven-core-2.0.6.jar.sha1  maven-core-2.0.6.pom       maven-core-2.0.6.pom.sha1

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Attachments:

• demo.tar.gz (2.37 kB)

[jira-importer]

Maarten Mulders commented

Did you try updating the Maven Dependency Plugin to the latest version, 3.2.0? It seems to me that version doesn't have the problem.

[jira-importer]

Wei Lin commented

Running mvn -B -f /tmp/demo/pom.xml org.apache.maven.plugins:maven-dependency-plugin:3.2.0:go-offline does resolve the partial downloading problem, but still does not go completely offline.

Running mvn test after go-offline still requires one more downloading: org.apache.maven.surefire:surefire-junit3:2.12.4

This might be another issue though. Should I close this ticket and open a new one?