diff --git a/packages/react-native/ReactAndroid/api/ReactAndroid.api b/packages/react-native/ReactAndroid/api/ReactAndroid.api
index cc97c622074f..55fcf4c72273 100644
--- a/packages/react-native/ReactAndroid/api/ReactAndroid.api
+++ b/packages/react-native/ReactAndroid/api/ReactAndroid.api
@@ -1936,8 +1936,9 @@ public final class com/facebook/react/common/mapbuffer/WritableMapBuffer : com/f
 	public final fun put (IZ)Lcom/facebook/react/common/mapbuffer/WritableMapBuffer;
 }
 
-public class com/facebook/react/common/network/OkHttpCallUtil {
-	public static fun cancelTag (Lokhttp3/OkHttpClient;Ljava/lang/Object;)V
+public final class com/facebook/react/common/network/OkHttpCallUtil {
+	public static final field INSTANCE Lcom/facebook/react/common/network/OkHttpCallUtil;
+	public static final fun cancelTag (Lokhttp3/OkHttpClient;Ljava/lang/Object;)V
 }
 
 public class com/facebook/react/config/ReactFeatureFlags {
@@ -5867,9 +5868,9 @@ public class com/facebook/react/views/common/ContextUtils {
 	public static fun findContextOfType (Landroid/content/Context;Ljava/lang/Class;)Ljava/lang/Object;
 }
 
-public class com/facebook/react/views/common/ViewUtils {
-	public fun <init> ()V
-	public static fun getTestId (Landroid/view/View;)Ljava/lang/String;
+public final class com/facebook/react/views/common/ViewUtils {
+	public static final field INSTANCE Lcom/facebook/react/views/common/ViewUtils;
+	public static final fun getTestId (Landroid/view/View;)Ljava/lang/String;
 }
 
 public class com/facebook/react/views/debuggingoverlay/DebuggingOverlay : android/view/View {
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/common/network/OkHttpCallUtil.java b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/common/network/OkHttpCallUtil.java
deleted file mode 100644
index a71f7113dc0e..000000000000
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/common/network/OkHttpCallUtil.java
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * Copyright (c) Meta Platforms, Inc. and affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- */
-
-package com.facebook.react.common.network;
-
-import com.facebook.infer.annotation.Nullsafe;
-import okhttp3.Call;
-import okhttp3.OkHttpClient;
-
-/**
- * Helper class that provides the necessary methods for canceling queued and running OkHttp calls
- */
-@Nullsafe(Nullsafe.Mode.LOCAL)
-public class OkHttpCallUtil {
-
-  private OkHttpCallUtil() {}
-
-  public static void cancelTag(OkHttpClient client, Object tag) {
-    for (Call call : client.dispatcher().queuedCalls()) {
-      if (tag.equals(call.request().tag())) {
-        call.cancel();
-        return;
-      }
-    }
-    for (Call call : client.dispatcher().runningCalls()) {
-      if (tag.equals(call.request().tag())) {
-        call.cancel();
-        return;
-      }
-    }
-  }
-}
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/common/network/OkHttpCallUtil.kt b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/common/network/OkHttpCallUtil.kt
new file mode 100644
index 000000000000..0bd4a0f11238
--- /dev/null
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/common/network/OkHttpCallUtil.kt
@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+package com.facebook.react.common.network
+
+import okhttp3.OkHttpClient
+
+/**
+ * Helper class that provides the necessary methods for canceling queued and running OkHttp calls
+ */
+public object OkHttpCallUtil {
+
+  @JvmStatic
+  public fun cancelTag(client: OkHttpClient, tag: Any) {
+    for (call in client.dispatcher().queuedCalls()) {
+      if (tag == call.request().tag()) {
+        call.cancel()
+        return
+      }
+    }
+    for (call in client.dispatcher().runningCalls()) {
+      if (tag == call.request().tag()) {
+        call.cancel()
+        return
+      }
+    }
+  }
+}
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/SimpleViewManager.java b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/SimpleViewManager.kt
similarity index 54%
rename from packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/SimpleViewManager.java
rename to packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/SimpleViewManager.kt
index 18be68007916..009e1658bed5 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/SimpleViewManager.java
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/SimpleViewManager.kt
@@ -5,10 +5,9 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-package com.facebook.react.uimanager;
+package com.facebook.react.uimanager
 
-import android.view.View;
-import com.facebook.infer.annotation.Nullsafe;
+import android.view.View
 
 /**
  * Common base class for most of the {@link ViewManager}s. It provides support for most common
@@ -18,20 +17,15 @@
  *
  * @param <T> the view handled by this manager
  */
-@Nullsafe(Nullsafe.Mode.LOCAL)
-public abstract class SimpleViewManager<T extends View>
-    extends BaseViewManager<T, LayoutShadowNode> {
+public abstract class SimpleViewManager<T : View> : BaseViewManager<T, LayoutShadowNode>() {
 
-  @Override
-  public LayoutShadowNode createShadowNodeInstance() {
-    return new LayoutShadowNode();
+  override public fun createShadowNodeInstance(): LayoutShadowNode {
+    return LayoutShadowNode()
   }
 
-  @Override
-  public Class<LayoutShadowNode> getShadowNodeClass() {
-    return LayoutShadowNode.class;
+  override public fun getShadowNodeClass(): Class<LayoutShadowNode> {
+    return LayoutShadowNode::class.java
   }
 
-  @Override
-  public void updateExtraData(T root, Object extraData) {}
+  override public fun updateExtraData(root: T, extraData: Any?): Unit = Unit
 }
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/common/ViewUtils.java b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/common/ViewUtils.java
deleted file mode 100644
index 9a9d219ddf43..000000000000
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/common/ViewUtils.java
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * Copyright (c) Meta Platforms, Inc. and affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- */
-
-package com.facebook.react.views.common;
-
-import android.view.View;
-import androidx.annotation.Nullable;
-import com.facebook.infer.annotation.Nullsafe;
-import com.facebook.react.R;
-
-/** Class containing static methods involving manipulations of Views */
-@Nullsafe(Nullsafe.Mode.LOCAL)
-public class ViewUtils {
-
-  /**
-   * Returns value of testId for the given view, if present
-   *
-   * @param view View to get the testId value for
-   * @return the value of testId if defined for the view, otherwise null
-   */
-  public static @Nullable String getTestId(@Nullable View view) {
-    if (view == null) {
-      return null;
-    }
-    Object tag = view.getTag(R.id.react_test_id);
-    if (tag instanceof String) {
-      return (String) tag;
-    } else {
-      return null;
-    }
-  }
-}
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/common/ViewUtils.kt b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/common/ViewUtils.kt
new file mode 100644
index 000000000000..ccbe5b0306a4
--- /dev/null
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/common/ViewUtils.kt
@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+package com.facebook.react.views.common
+
+import android.view.View
+import com.facebook.react.R
+
+/** Class containing static methods involving manipulations of Views */
+public object ViewUtils {
+
+  /**
+   * Returns value of testId for the given view, if present
+   *
+   * @param view View to get the testId value for
+   * @return the value of testId if defined for the view, otherwise null
+   */
+  @JvmStatic
+  public fun getTestId(view: View?): String? = view?.getTag(R.id.react_test_id) as? String
+}