MartinKanters commented on a change in pull request #444:
URL: https://github.com/apache/maven/pull/444#discussion_r575239494



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File path: maven-embedder/src/main/java/org/apache/maven/cli/MavenCli.java
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@@ -1032,20 +1031,6 @@ private int execute( CliRequest cliRequest )
             {
                 logBuildResumeHint( "mvn <args> -r" );
             }
-            else if ( !failedProjects.isEmpty() )

Review comment:
       It would indeed be a very exceptional case, but it's possible that 
writing the resume.properties file on disk fails for some reason. That's why we 
kept it.
   This piece of code ensures that in that event, the canResume flag is not set 
to `true`, so it would end up in logging the `-rf` hint.
   
https://github.com/apache/maven/blob/master/maven-core/src/main/java/org/apache/maven/DefaultMaven.java#L404-L412




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