diff --git a/core-java-modules/core-java-16/src/test/java/com/baeldung/streams/StreamToListComparisonWithCollectorsToListUnitTest.java b/core-java-modules/core-java-16/src/test/java/com/baeldung/streams/StreamToListComparisonWithCollectorsToListUnitTest.java
new file mode 100644
index 0000000000..e1330bb4f7
--- /dev/null
+++ b/core-java-modules/core-java-16/src/test/java/com/baeldung/streams/StreamToListComparisonWithCollectorsToListUnitTest.java
@@ -0,0 +1,128 @@
+package com.baeldung.streams;
+
+import java.util.List;
+import java.util.Locale;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+public class StreamToListComparisonWithCollectorsToListUnitTest {
+
+    @Test
+    public void whenAddingtoCollectToList_thenSuccess() {
+
+        List<String> result = Stream.of(Locale.getISOCountries())
+          .collect(Collectors.toList());
+
+        Assertions.assertDoesNotThrow(() -> {
+            result.add("test");
+        });
+    }
+
+    @Test
+    public void whenSortingtoCollectToList_thenSuccess() {
+
+        List<String> result = Stream.of(Locale.getISOCountries())
+          .collect(Collectors.toList());
+
+        Assertions.assertDoesNotThrow(() -> {
+            result.sort(String::compareToIgnoreCase);
+        });
+    }
+
+    @Test
+    public void whenAddingCollectUnmodifiableToList_thenException() {
+
+        List<String> result = Stream.of(Locale.getISOCountries())
+          .collect(Collectors.toUnmodifiableList());
+
+        Assertions.assertThrows(UnsupportedOperationException.class, () -> {
+            result.add("test");
+        });
+    }
+
+    @Test
+    public void whenSortingCollectUnmodifiableToList_thenSortException() {
+
+        List<String> result = Stream.of(Locale.getISOCountries())
+          .collect(Collectors.toUnmodifiableList());
+
+        Assertions.assertThrows(UnsupportedOperationException.class, () -> {
+            result.sort(String::compareToIgnoreCase);
+        });
+    }
+
+    @Test
+    public void whenAddingStreamToList_thenException() {
+
+        List<String> result = Stream.of(Locale.getISOCountries())
+          .toList();
+
+        Assertions.assertThrows(UnsupportedOperationException.class, () -> {
+            result.add("test");
+        });
+    }
+
+    @Test
+    public void whenSortingStreamToList_thenException() {
+
+        List<String> result = Stream.of(Locale.getISOCountries())
+          .toList();
+
+        Assertions.assertThrows(UnsupportedOperationException.class, () -> {
+            result.sort(String::compareToIgnoreCase);
+        });
+    }
+
+    @Test
+    public void whenComparingStreamToList_withCollectToList_thenEqual() {
+
+        List<String> streamToList = Stream.of(Locale.getISOCountries())
+          .toList();
+        List<String> collectToList = Stream.of(Locale.getISOCountries())
+          .collect(Collectors.toList());
+
+        Assertions.assertEquals(streamToList, collectToList);
+    }
+
+    @Test
+    public void whenComparingStreamToList_withUnmodifiedCollectToList_thenEqual() {
+
+        List<String> streamToList = Stream.of(Locale.getISOCountries())
+          .toList();
+        List<String> collectToUnmodifiableList = Stream.of(Locale.getISOCountries())
+          .collect(Collectors.toUnmodifiableList());
+
+        Assertions.assertEquals(streamToList, collectToUnmodifiableList);
+    }
+
+    @Test
+    public void whenNullCollectorsToList_thenSuccess() {
+
+        Assertions.assertDoesNotThrow(() -> {
+            Stream.of(null, null)
+              .collect(Collectors.toList());
+        });
+    }
+
+    @Test
+    public void whenNullCollectorsUnmodifiableToList_thenException() {
+
+        Assertions.assertThrows(NullPointerException.class, () -> {
+            Stream.of(null, null)
+              .collect(Collectors.toUnmodifiableList());
+        });
+    }
+
+    @Test
+    public void whenNullStreamToList_thenSuccess() {
+
+        Assertions.assertDoesNotThrow(() -> {
+            Stream.of(null, null)
+              .toList();
+        });
+    }
+
+}