fix: fix BufferedReader resource leak in FileIOUtils.readAsUTFStringLines (#18470)

Author: mailtoboggavarapu-coder

hudi-io/src/main/java/org/apache/hudi/io/util/FileIOUtils.java

@@ -43,7 +43,6 @@
 import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
 import java.nio.file.Path;
-import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.Comparator;
@@ -94,11 +93,13 @@ public static String readAsUTFString(InputStream input, int length) throws IOExc
    * @return String lines in a list.
    */
   public static List<String> readAsUTFStringLines(InputStream input) {
-    List<String> lines = new ArrayList<>();
-    BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(input, StandardCharsets.UTF_8));
-    lines = bufferedReader.lines().collect(Collectors.toList());
-    closeQuietly(bufferedReader);
-    return lines;
+    try (BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(input, StandardCharsets.UTF_8))) {
+      return bufferedReader.lines().collect(Collectors.toList());
+    } catch (IOException e) {
+      // Note: stream errors from lines().collect(...) surface as UncheckedIOException and bypass this block.
+      // This catch handles IOException from close() during try-with-resources teardown.
+      throw new RuntimeException(e);
+    }
   }
 
   public static void copy(InputStream inputStream, OutputStream outputStream) throws IOException {