From 1db8b964f031f25cdceecccfb1508d578e4e9be2 Mon Sep 17 00:00:00 2001
From: Yerin Lee <rt8632@naver.com>
Date: Sat, 8 Aug 2026 14:38:29 +0900
Subject: [PATCH] [ZEPPELIN-6461] Fix InterruptedException handling in
 recoverRunningParagraphs

Replace e.printStackTrace() with SLF4J logging and restore thread
interrupt status in Notebook.recoverRunningParagraphs().
---
 .../src/main/java/org/apache/zeppelin/notebook/Notebook.java   | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/zeppelin-server/src/main/java/org/apache/zeppelin/notebook/Notebook.java b/zeppelin-server/src/main/java/org/apache/zeppelin/notebook/Notebook.java
index 713cc793223..ed019c4baf6 100644
--- a/zeppelin-server/src/main/java/org/apache/zeppelin/notebook/Notebook.java
+++ b/zeppelin-server/src/main/java/org/apache/zeppelin/notebook/Notebook.java
@@ -207,7 +207,8 @@ private void recoverRunningParagraphs() {
     try {
       thread.join();
     } catch (InterruptedException e) {
-      e.printStackTrace();
+      LOGGER.warn("Paragraph recovery thread interrupted", e);
+      Thread.currentThread().interrupt();
     }
   }