1 files changed, 7 insertions, 0 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/actions/AbstractAction.java b/src/main/java/com/google/devtools/build/lib/actions/AbstractAction.java
index dc1857826b..3dc3e4be40 100644
--- a/src/main/java/com/google/devtools/build/lib/actions/AbstractAction.java
+++ b/src/main/java/com/google/devtools/build/lib/actions/AbstractAction.java
@@ -40,6 +40,7 @@ import com.google.devtools.build.lib.vfs.FileSystemUtils;
 import com.google.devtools.build.lib.vfs.Path;
 import com.google.devtools.build.lib.vfs.PathFragment;
 import com.google.devtools.build.lib.vfs.Symlinks;
+import com.google.devtools.build.skyframe.SkyFunction;
 import java.io.IOException;
 import java.util.Collection;
 import java.util.Map;
@@ -179,6 +180,12 @@ public abstract class AbstractAction implements Action, SkylarkValue {
         + " since it does not discover inputs");
   }
 
+  @Override
+  public Iterable<Artifact> discoverInputsStage2(SkyFunction.Environment env)
+      throws ActionExecutionException, InterruptedException {
+    return null;
+  }
+
   @Nullable
   @Override
   public Iterable<Artifact> getInputsWhenSkippingInputDiscovery() {