[ 
https://issues.apache.org/jira/browse/MDEP-749?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Herve Boutemy updated MDEP-749:
-------------------------------
    Description: 
{{mvn dependency:copy-dependencies}} works well even if a POM does not have any 
dependencies
but {{mvn dependency:copy-dependencies -DexcludeScope=test}} fails

{noformat}$ mvn dependency:copy-dependencies -DexcludeScope=test
[INFO] Scanning for projects...
[INFO] 
[INFO] --------------------< com.sonatype:dep-scope-test >---------------------
[INFO] Building dep-scope-test 1.0-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] --- maven-dependency-plugin:2.8:copy-dependencies (default-cli) @ 
dep-scope-test ---
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  0.765 s
[INFO] Finished at: 2021-05-20T08:21:16+02:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal 
org.apache.maven.plugins:maven-dependency-plugin:2.8:copy-dependencies 
(default-cli) on project dep-scope-test:  Can't exclude Test scope, this will 
exclude everything. -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e 
switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please 
read the following articles:
[ERROR] [Help 1] 
http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
{noformat}

can be done easily on a project created with {{mvn archetype:generate 
-DgroupId=com.sonatype -DartifactId=dep-scope-test 
-DarchetypeArtifactId=maven-archetype-quickstart -DarchetypeVersion=1.4 
-DinteractiveMode=false}}

  was:
{{mvn dependency:copy-dependencies}} works well even if a POM does not have any 
dependencies
but {{mvn dependency:copy-dependencies -DexcludeScope=test}} fails if the 
result is empty (either because it was empty without the exclusion, or because 
the exclusion removed every existing dependency, like in this case if junit was 
a test scoped dependency)

{noformat}$ mvn dependency:copy-dependencies -DexcludeScope=test
[INFO] Scanning for projects...
[INFO] 
[INFO] --------------------< com.sonatype:dep-scope-test >---------------------
[INFO] Building dep-scope-test 1.0-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] --- maven-dependency-plugin:2.8:copy-dependencies (default-cli) @ 
dep-scope-test ---
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  0.765 s
[INFO] Finished at: 2021-05-20T08:21:16+02:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal 
org.apache.maven.plugins:maven-dependency-plugin:2.8:copy-dependencies 
(default-cli) on project dep-scope-test:  Can't exclude Test scope, this will 
exclude everything. -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e 
switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please 
read the following articles:
[ERROR] [Help 1] 
http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
{noformat}

can be done easily on a project created with {{mvn archetype:generate 
-DgroupId=com.sonatype -DartifactId=dep-scope-test 
-DarchetypeArtifactId=maven-archetype-quickstart -DarchetypeVersion=1.4 
-DinteractiveMode=false}}


> copy-dependencies fails when using excludeScopes=test
> -----------------------------------------------------
>
>                 Key: MDEP-749
>                 URL: https://issues.apache.org/jira/browse/MDEP-749
>             Project: Maven Dependency Plugin
>          Issue Type: Bug
>          Components: copy-dependencies
>    Affects Versions: 3.1.2
>            Reporter: Herve Boutemy
>            Priority: Major
>             Fix For: 3.2.0
>
>
> {{mvn dependency:copy-dependencies}} works well even if a POM does not have 
> any dependencies
> but {{mvn dependency:copy-dependencies -DexcludeScope=test}} fails
> {noformat}$ mvn dependency:copy-dependencies -DexcludeScope=test
> [INFO] Scanning for projects...
> [INFO] 
> [INFO] --------------------< com.sonatype:dep-scope-test 
> >---------------------
> [INFO] Building dep-scope-test 1.0-SNAPSHOT
> [INFO] --------------------------------[ jar 
> ]---------------------------------
> [INFO] 
> [INFO] --- maven-dependency-plugin:2.8:copy-dependencies (default-cli) @ 
> dep-scope-test ---
> [INFO] 
> ------------------------------------------------------------------------
> [INFO] BUILD FAILURE
> [INFO] 
> ------------------------------------------------------------------------
> [INFO] Total time:  0.765 s
> [INFO] Finished at: 2021-05-20T08:21:16+02:00
> [INFO] 
> ------------------------------------------------------------------------
> [ERROR] Failed to execute goal 
> org.apache.maven.plugins:maven-dependency-plugin:2.8:copy-dependencies 
> (default-cli) on project dep-scope-test:  Can't exclude Test scope, this will 
> exclude everything. -> [Help 1]
> [ERROR] 
> [ERROR] To see the full stack trace of the errors, re-run Maven with the -e 
> switch.
> [ERROR] Re-run Maven using the -X switch to enable full debug logging.
> [ERROR] 
> [ERROR] For more information about the errors and possible solutions, please 
> read the following articles:
> [ERROR] [Help 1] 
> http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
> {noformat}
> can be done easily on a project created with {{mvn archetype:generate 
> -DgroupId=com.sonatype -DartifactId=dep-scope-test 
> -DarchetypeArtifactId=maven-archetype-quickstart -DarchetypeVersion=1.4 
> -DinteractiveMode=false}}



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