Tibor17 commented on a change in pull request #196: [SUREFIRE-1585] [WIP] 
Resolve missing and align "JUnit 5" artifacts
URL: https://github.com/apache/maven-surefire/pull/196#discussion_r232467808
 
 

 ##########
 File path: 
maven-surefire-common/src/main/java/org/apache/maven/plugin/surefire/AbstractSurefireMojo.java
 ##########
 @@ -2846,8 +2849,92 @@ public void addProviderProperties()
         @Nonnull
         public Set<Artifact> getProviderClasspath()
         {
+            String provider = "surefire-junit-platform";
             String version = surefireBooterArtifact.getBaseVersion();
-            return dependencyResolver.getProviderClasspath( 
"surefire-junit-platform", version );
+            Set<Artifact> providerArtifacts = 
dependencyResolver.getProviderClasspath( provider, version );
+            alignJUnitPlatformVersion( providerArtifacts );
+            resolveJUnitJupiterEngine( providerArtifacts );
+            resolveJUnitVintageEngine( providerArtifacts );
+            return providerArtifacts;
+        }
+
+        private void resolveJUnitJupiterEngine( Set<Artifact> 
providerArtifacts )
+        {
+            Artifact junitJupiterApi = getProjectArtifactMap().get( 
"org.junit.jupiter:junit-jupiter-api" );
+            if ( junitJupiterApi == null ) // no api, no engine
+            {
+                return;
+            }
+            Artifact junitJupiterEngine = getProjectArtifactMap().get( 
"org.junit.jupiter:junit-jupiter-engine" );
+            if ( junitJupiterEngine != null ) // engine already resolved by 
project
+            {
+                return;
 
 Review comment:
   I think `get()` in hashMap is fast enough which value can be used to 
evaluate it within IF argument and then continue with the main stuff. It makes 
sense to me to warp the algorithm around IF-ELSE without using `return` in the 
middle within the algorithm.

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