index 8ba047bb5c3..d457f2820a6 100644
--- a/test/lib-test/jdk/test/lib/FileUtilsTest.java
+++ b/test/lib-test/jdk/test/lib/FileUtilsTest.java
@@ -37,6 +37,8 @@
 public class FileUtilsTest {
 
     public static void main(String[] args) throws Exception {
+        testCopyDirectoryToPWD();
+
         // Replace with same line
         test("a", 1, 1, null, "a", "a\n");
         // Replace with different line
@@ -121,4 +123,15 @@ private static void test(String content, int from, int to, String replace,
         }
         Asserts.assertEQ(output, (expected != null) ? expected.replaceAll("\n", System.lineSeparator()) : null);
     }
-}
\ No newline at end of file
+
+    private static void testCopyDirectoryToPWD() throws Exception {
+        String dir = System.getProperty("test.classes");
+        System.out.println("copyDirectory(\"" + dir + "\", \".\")");
+
+        Path src = Paths.get(dir);
+        Path dst = Paths.get(System.getProperty("user.dir"));
+        FileUtils.copyDirectory(src, dst);
+
+        Files.writeString(Paths.get("file2.txt"), "Hello");
+    }
+}