diff --git a/packages/react-native/ReactAndroid/src/test/java/com/facebook/react/modules/network/ReactCookieJarContainerTest.java b/packages/react-native/ReactAndroid/src/test/java/com/facebook/react/modules/network/ReactCookieJarContainerTest.java
deleted file mode 100644
index 3acb9a0af8d..00000000000
--- a/packages/react-native/ReactAndroid/src/test/java/com/facebook/react/modules/network/ReactCookieJarContainerTest.java
+++ /dev/null
@@ -1,71 +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.modules.network;
-
-import static org.assertj.core.api.Assertions.assertThat;
-import static org.mockito.Mockito.any;
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.when;
-
-import java.util.ArrayList;
-import java.util.List;
-import okhttp3.Cookie;
-import okhttp3.CookieJar;
-import okhttp3.HttpUrl;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.powermock.core.classloader.annotations.PowerMockIgnore;
-import org.powermock.core.classloader.annotations.PrepareForTest;
-import org.robolectric.RobolectricTestRunner;
-
-/** Tests for {@link NetworkingModule}. */
-@PrepareForTest({ReactCookieJarContainer.class})
-@RunWith(RobolectricTestRunner.class)
-@PowerMockIgnore({"org.mockito.*", "org.robolectric.*", "androidx.*", "android.*"})
-public class ReactCookieJarContainerTest {
-
-  @Test
-  public void testMissingJar() throws Exception {
-    ReactCookieJarContainer jarContainer = mock(ReactCookieJarContainer.class);
-    assertThat(jarContainer.loadForRequest(HttpUrl.parse("http://example.com")).size())
-        .isEqualTo(0);
-  }
-
-  @Test
-  public void testEmptyCookies() throws Exception {
-    ReactCookieJarContainer jarContainer = mock(ReactCookieJarContainer.class);
-    List<Cookie> cookies = new ArrayList<>();
-    when(jarContainer.loadForRequest(any(HttpUrl.class))).thenReturn(cookies);
-    assertThat(jarContainer.loadForRequest(HttpUrl.parse("http://example.com")).size())
-        .isEqualTo(0);
-  }
-
-  @Test
-  public void testValidCookies() throws Exception {
-    ReactCookieJarContainer jarContainer = new ReactCookieJarContainer();
-    CookieJar cookieJar = mock(CookieJar.class);
-    jarContainer.setCookieJar(cookieJar);
-    List<Cookie> cookies = new ArrayList<>();
-    cookies.add(new Cookie.Builder().name("valid").value("valid value").domain("domain").build());
-    when(cookieJar.loadForRequest(any(HttpUrl.class))).thenReturn(cookies);
-    assertThat(jarContainer.loadForRequest(HttpUrl.parse("http://example.com")).size())
-        .isEqualTo(1);
-  }
-
-  @Test
-  public void testInvalidCookies() throws Exception {
-    ReactCookieJarContainer jarContainer = new ReactCookieJarContainer();
-    CookieJar cookieJar = mock(CookieJar.class);
-    jarContainer.setCookieJar(cookieJar);
-    List<Cookie> cookies = new ArrayList<>();
-    cookies.add(new Cookie.Builder().name("valid").value("înválíd välūė").domain("domain").build());
-    when(cookieJar.loadForRequest(any(HttpUrl.class))).thenReturn(cookies);
-    assertThat(jarContainer.loadForRequest(HttpUrl.parse("http://example.com")).size())
-        .isEqualTo(0);
-  }
-}
diff --git a/packages/react-native/ReactAndroid/src/test/java/com/facebook/react/modules/network/ReactCookieJarContainerTest.kt b/packages/react-native/ReactAndroid/src/test/java/com/facebook/react/modules/network/ReactCookieJarContainerTest.kt
new file mode 100644
index 00000000000..5999e4c68d9
--- /dev/null
+++ b/packages/react-native/ReactAndroid/src/test/java/com/facebook/react/modules/network/ReactCookieJarContainerTest.kt
@@ -0,0 +1,65 @@
+/*
+ * 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.modules.network
+
+import okhttp3.Cookie
+import okhttp3.CookieJar
+import okhttp3.HttpUrl
+import org.assertj.core.api.Assertions.assertThat
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mockito.Mockito.any
+import org.mockito.Mockito.mock
+import org.mockito.Mockito.`when` as whenever
+import org.powermock.core.classloader.annotations.PowerMockIgnore
+import org.powermock.core.classloader.annotations.PrepareForTest
+import org.robolectric.RobolectricTestRunner
+
+/** Tests for {@link NetworkingModule}. */
+@RunWith(RobolectricTestRunner::class)
+@PrepareForTest(ReactCookieJarContainer::class)
+@PowerMockIgnore("org.mockito.*", "org.robolectric.*", "androidx.*", "android.*")
+class ReactCookieJarContainerTest {
+  private val httpUrl: HttpUrl = HttpUrl.parse("http://example.com")
+
+  @Test
+  fun testMissingJar() {
+    val jarContainer: ReactCookieJarContainer = mock(ReactCookieJarContainer::class.java)
+    assertThat(jarContainer.loadForRequest(httpUrl).size).isEqualTo(0)
+  }
+
+  @Test
+  fun testEmptyCookies() {
+    val jarContainer: ReactCookieJarContainer = mock(ReactCookieJarContainer::class.java)
+    val cookies: List<Cookie> = emptyList()
+    whenever(jarContainer.loadForRequest(any(HttpUrl::class.java))).thenReturn(cookies)
+    assertThat(jarContainer.loadForRequest(httpUrl).size).isEqualTo(0)
+  }
+
+  @Test
+  fun testValidCookies() {
+    val jarContainer = ReactCookieJarContainer()
+    val cookieJar: CookieJar = mock(CookieJar::class.java)
+    jarContainer.setCookieJar(cookieJar)
+    val cookies: MutableList<Cookie> = mutableListOf()
+    cookies.add(Cookie.Builder().name("valid").value("valid value").domain("domain").build())
+    whenever(cookieJar.loadForRequest(httpUrl)).thenReturn(cookies)
+    assertThat(jarContainer.loadForRequest(httpUrl).size).isEqualTo(1)
+  }
+
+  @Test
+  fun testInvalidCookies() {
+    val jarContainer = ReactCookieJarContainer()
+    val cookieJar: CookieJar = mock(CookieJar::class.java)
+    jarContainer.setCookieJar(cookieJar)
+    val cookies: MutableList<Cookie> = mutableListOf()
+    cookies.add(Cookie.Builder().name("valid").value("înválíd välūė").domain("domain").build())
+    whenever(cookieJar.loadForRequest(httpUrl)).thenReturn(cookies)
+    assertThat(jarContainer.loadForRequest(httpUrl).size).isEqualTo(0)
+  }
+}