1 files changed, 9 insertions, 0 deletions
diff --git a/src/test/java/com/google/devtools/build/lib/actions/ArtifactFactoryTest.java b/src/test/java/com/google/devtools/build/lib/actions/ArtifactFactoryTest.java
index ec8c39b571..f9c31ca044 100644
--- a/src/test/java/com/google/devtools/build/lib/actions/ArtifactFactoryTest.java
+++ b/src/test/java/com/google/devtools/build/lib/actions/ArtifactFactoryTest.java
@@ -41,6 +41,8 @@ import java.util.HashMap;
 import java.util.Map;
 import java.util.Map.Entry;
 
+import javax.annotation.Nullable;
+
 /**
  * Tests {@link ArtifactFactory}. Also see {@link ArtifactTest} for a test
  * of individual artifacts.
@@ -250,5 +252,12 @@ public class ArtifactFactoryTest {
       }
       return result;
     }
+    
+    @Override
+    @Nullable
+    public Map<PathFragment, Root> findPackageRoots(Iterable<PathFragment> execPaths)
+        throws PackageRootResolutionException {
+      return null; // unused
+    }
   }
 }