diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/ReactInvalidPropertyException.java b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/ReactInvalidPropertyException.java
index f574371ae30..63bdc3fa637 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/ReactInvalidPropertyException.java
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/ReactInvalidPropertyException.java
@@ -7,6 +7,9 @@
 
 package com.facebook.react.uimanager;
 
+import com.facebook.infer.annotation.Nullsafe;
+
+@Nullsafe(Nullsafe.Mode.LOCAL)
 public class ReactInvalidPropertyException extends RuntimeException {
 
   public ReactInvalidPropertyException(String property, String value, String expectedValues) {
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/ReactRoot.java b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/ReactRoot.java
index 20a89f746bf..49430b70d1d 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/ReactRoot.java
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/ReactRoot.java
@@ -10,10 +10,12 @@ package com.facebook.react.uimanager;
 import android.os.Bundle;
 import android.view.ViewGroup;
 import androidx.annotation.Nullable;
+import com.facebook.infer.annotation.Nullsafe;
 import com.facebook.react.uimanager.common.UIManagerType;
 import java.util.concurrent.atomic.AtomicInteger;
 
 /** Interface for the root native view of a React native application */
+@Nullsafe(Nullsafe.Mode.LOCAL)
 public interface ReactRoot {
 
   /** This constant represents that ReactRoot hasn't started yet or it has been destroyed. */
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/ReactRootViewTagGenerator.java b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/ReactRootViewTagGenerator.java
index 90d9ac63ad7..6c128e202ec 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/ReactRootViewTagGenerator.java
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/ReactRootViewTagGenerator.java
@@ -7,7 +7,10 @@
 
 package com.facebook.react.uimanager;
 
+import com.facebook.infer.annotation.Nullsafe;
+
 /** Incremental counter for React Root View tag. */
+@Nullsafe(Nullsafe.Mode.LOCAL)
 public class ReactRootViewTagGenerator {
 
   // Keep in sync with ReactIOSTagHandles JS module - see that file for an explanation on why the