Mark classes of package uimanager as @nullsafe

Summary:
All these classes are NullSafe, let's mark them as NullSafe(Local) to ensure lint detect errors in the future

bypass-github-export-checks

changelog: [internal] internal

Reviewed By: javache

Differential Revision: D54027184

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/ViewDefaults.java

@@ -7,7 +7,10 @@
 
 package com.facebook.react.uimanager;
 
+import com.facebook.infer.annotation.Nullsafe;
+
 /** Default property values for Views to be shared between Views and ShadowViews. */
+@Nullsafe(Nullsafe.Mode.LOCAL)
 public class ViewDefaults {
 
   public static final float FONT_SIZE_SP = 14.0f;

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/ViewGroupDrawingOrderHelper.java

@@ -11,12 +11,14 @@
 import android.view.ViewGroup;
 import androidx.annotation.Nullable;
 import com.facebook.common.logging.FLog;
+import com.facebook.infer.annotation.Nullsafe;
 import com.facebook.react.common.ReactConstants;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.Comparator;
 
 /** Helper to handle implementing ViewGroups with custom drawing order based on z-index. */
+@Nullsafe(Nullsafe.Mode.LOCAL)
 public class ViewGroupDrawingOrderHelper {
   private final ViewGroup mViewGroup;
   private int mNumberOfChildrenWithZIndex = 0;

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/ViewGroupManager.java

@@ -10,11 +10,13 @@
 import android.view.View;
 import android.view.ViewGroup;
 import androidx.annotation.Nullable;
+import com.facebook.infer.annotation.Nullsafe;
 import com.facebook.react.bridge.UiThreadUtil;
 import java.util.List;
 import java.util.WeakHashMap;
 
 /** Class providing children management API for view managers of classes extending ViewGroup. */
+@Nullsafe(Nullsafe.Mode.LOCAL)
 public abstract class ViewGroupManager<T extends ViewGroup>
     extends BaseViewManager<T, LayoutShadowNode> implements IViewGroupManager<T> {