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https://issues.apache.org/jira/browse/MENFORCER-378?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17652320#comment-17652320
 ] 

Petr Široký commented on MENFORCER-378:
---------------------------------------

I tried to run the test project with plugin version {{3.1.0}} and that seems to 
work as I would expect:
{code:java}
$ /tmp/test ❯ mvn validate                                                      
                                                                                
                                                                                
                                                                                
                 
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Build Order:
[INFO] 
[INFO] Homeserver Domains                                                 [pom]
[INFO] Domeinen                                                           [pom]
[INFO] Common Libraries                                                   [jar]
[INFO] Common Libs                                                        [jar]
[INFO] 
[INFO] ------------------------< nl.mytest:homeserver >------------------------
[INFO] Building Homeserver Domains 0.0.1-SNAPSHOT                         [1/4]
[INFO] --------------------------------[ pom ]---------------------------------
[INFO] 
[INFO] -------------------------< nl.mytest:domains >--------------------------
[INFO] Building Domeinen 0.0.1-SNAPSHOT                                   [2/4]
[INFO] --------------------------------[ pom ]---------------------------------
[INFO] 
[INFO] --- maven-enforcer-plugin:3.1.0:enforce (enforce) @ domains ---
[INFO] 
[INFO] -----------------------< nl.mytest:domain_libs >------------------------
[INFO] Building Common Libraries 0.0.1-SNAPSHOT                           [3/4]
[INFO] --------------------------------[ jar ]---------------------------------
[WARNING] The POM for 
nl.myshared.datafiles:runtime_data:selector:0.0.1-SNAPSHOT is missing, no 
dependency information available
[INFO] 
[INFO] --- maven-enforcer-plugin:3.1.0:enforce (enforce) @ domain_libs ---
[ERROR] Rule 0: org.apache.maven.plugins.enforcer.RequireReleaseDeps failed 
with message:
Found Banned Dependency: 
nl.myshared.datafiles:runtime_data:selector:0.0.1-SNAPSHOT
Use 'mvn dependency:tree' to locate the source of the banned dependencies.
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary for Homeserver Domains 0.0.1-SNAPSHOT:
[INFO] 
[INFO] Homeserver Domains ................................. SUCCESS [  0.001 s]
[INFO] Domeinen ........................................... SUCCESS [  0.195 s]
[INFO] Common Libraries ................................... FAILURE [  0.005 s]
[INFO] Common Libs ........................................ SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  0.247 s
[INFO] Finished at: 2022-12-27T23:36:28+01:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal 
org.apache.maven.plugins:maven-enforcer-plugin:3.1.0:enforce (enforce) on 
project domain_libs: Some Enforcer rules have failed. Look above for specific 
messages explaining why the rule failed. -> [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
[ERROR] 
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <args> -rf :domain_libs {code}
There is a WARN about missing pom for that dependency, which seems OK. The 
enforcer rule also fails because the dependency is in fact a SNAPSHOT. I would 
say the rule should not really care if the dependency is optional or not. If 
it's a SNAPSHOT then I would expect a failure.

I am aware that this issue is almost 2 years old, but I figured I would try to 
double-check if this is has been already fixed or not and if yes, then we 
should close it and clean-up the backlog a bit.

> requireReleaseDeps does not support optional dependencies or runtime scope
> --------------------------------------------------------------------------
>
>                 Key: MENFORCER-378
>                 URL: https://issues.apache.org/jira/browse/MENFORCER-378
>             Project: Maven Enforcer Plugin
>          Issue Type: Bug
>          Components: Standard Rules
>    Affects Versions: 3.0.0-M3
>         Environment: Windows
>            Reporter: Casper Roubos
>            Priority: Major
>         Attachments: test.zip
>
>
> With using the <requireReleaseDeps> the enforcer throws a RuntimeException 
> due to the following error:
> {code}
> Caused by: 
> org.apache.maven.shared.dependency.graph.DependencyGraphBuilderException: 
> Could not resolve following dependencies: 
> [nl.myshared.datafiles:runtime_data:selector:0.0.1-SNAPSHOT (runtime?)]
>     at 
> org.apache.maven.shared.dependency.graph.internal.Maven31DependencyGraphBuilder.resolveDependencies
>  (Maven31DependencyGraphBuilder.java:133)
>     at 
> org.apache.maven.shared.dependency.graph.internal.Maven31DependencyGraphBuilder.buildDependencyGraph
>  (Maven31DependencyGraphBuilder.java:113)
>     at 
> org.apache.maven.shared.dependency.graph.internal.DefaultDependencyGraphBuilder.buildDependencyGraph
>  (DefaultDependencyGraphBuilder.java:91)
>     at 
> org.apache.maven.shared.dependency.graph.internal.DefaultDependencyGraphBuilder.buildDependencyGraph
>  (DefaultDependencyGraphBuilder.java:66)
>     at 
> org.apache.maven.plugins.enforcer.AbstractBanDependencies.getDependenciesToCheck
>  (AbstractBanDependencies.java:122)
>     at org.apache.maven.plugins.enforcer.AbstractBanDependencies.execute 
> (AbstractBanDependencies.java:86)
>     at org.apache.maven.plugins.enforcer.RequireReleaseDeps.execute 
> (RequireReleaseDeps.java:105)
>     at org.apache.maven.plugins.enforcer.EnforceMojo.execute 
> (EnforceMojo.java:205){code}
> This file is an optional dependency and the POM is sometimes not available. I 
> have given the optional parameter in the POM
> {code}
>               <dependency>
>                       <groupId>nl.myshared.datafiles</groupId>
>                       <artifactId>runtime_data</artifactId>
>                       <version>${project.version}</version>
>                       <type>selector</type>
>                       <scope>runtime</scope>
>                       <optional>true</optional>
>               </dependency>
> {code}
> I report this as a bug, since the <optional> parameter is long supported in 
> maven.
> In my opinion "AbstractBanDependencies.getDependenciesToCheck" line 139 
> should have a 'if present and if optional' check. If so, no RuntimeException 
> should be thrown. I'll leave it to you if <scope>runtime should also be 
> excused from the RuntimeException.
> I have no other option (no workaround)  than to skip the Enforcer for this 
> project.



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