diff --git a/maven-core/src/main/java/org/apache/maven/classrealm/ArtifactClassRealmConstituent.java b/maven-core/src/main/java/org/apache/maven/classrealm/ArtifactClassRealmConstituent.java
index 5eb1b501a9..8c482a9f92 100644
--- a/maven-core/src/main/java/org/apache/maven/classrealm/ArtifactClassRealmConstituent.java
+++ b/maven-core/src/main/java/org/apache/maven/classrealm/ArtifactClassRealmConstituent.java
@@ -67,4 +67,10 @@ class ArtifactClassRealmConstituent
         return artifact.getFile();
     }
 
+    @Override
+    public String toString()
+    {
+        return artifact.getId();
+    }
+
 }