diff --git a/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/licensecheck/NoticeFileChecker.java b/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/licensecheck/NoticeFileChecker.java
index c5d5e708a59cc..dc79461713212 100644
--- a/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/licensecheck/NoticeFileChecker.java
+++ b/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/licensecheck/NoticeFileChecker.java
@@ -352,7 +352,7 @@ private static String convertProblemsToIndentedString(List<String> problems, Str
 
     private static List<Path> findNoticeFiles(Path root) throws IOException {
         if (true) {
-            throw new RuntimeException("DEBUG: " + root);
+            throw new RuntimeException("DEBUG: " + Files.walk(root).collect(Collectors.toList()));
         }
 
         return Files.walk(root)