diff --git a/shadows/framework/src/main/java/org/robolectric/shadows/ShadowAppOpsManager.java b/shadows/framework/src/main/java/org/robolectric/shadows/ShadowAppOpsManager.java
index 9e44aefc266..d2222d676c7 100644
--- a/shadows/framework/src/main/java/org/robolectric/shadows/ShadowAppOpsManager.java
+++ b/shadows/framework/src/main/java/org/robolectric/shadows/ShadowAppOpsManager.java
@@ -59,7 +59,7 @@
 import org.robolectric.util.ReflectionHelpers;
 import org.robolectric.util.ReflectionHelpers.ClassParameter;
 
-@Implements(value = AppOpsManager.class)
+@Implements(value = AppOpsManager.class, looseSignatures = true)
 public class ShadowAppOpsManager {
 
   // OpEntry fields that the shadow doesn't currently allow the test to configure.
@@ -399,15 +399,18 @@ protected int noteProxyOpNoThrow(
   @RequiresApi(api = Build.VERSION_CODES.S)
   @Implementation(minSdk = Build.VERSION_CODES.S)
   protected int noteProxyOpNoThrow(
-      int op, Object attributionSource, String message, boolean ignoredSkipProxyOperation) {
+      Object op, Object attributionSource, Object message, Object ignoredSkipProxyOperation) {
+    Preconditions.checkArgument(op instanceof Integer);
     Preconditions.checkArgument(attributionSource instanceof AttributionSource);
+    Preconditions.checkArgument(message == null || message instanceof String);
+    Preconditions.checkArgument(ignoredSkipProxyOperation instanceof Boolean);
     AttributionSource castedAttributionSource = (AttributionSource) attributionSource;
     return noteProxyOpNoThrow(
-        op,
+        (int) op,
         castedAttributionSource.getNextPackageName(),
         castedAttributionSource.getNextUid(),
         castedAttributionSource.getNextAttributionTag(),
-        message);
+        (String) message);
   }
 
   @Implementation(minSdk = KITKAT)