From 1302305f9b307dc208c59cda2713ce40170a5858 Mon Sep 17 00:00:00 2001
From: hellopw <40051071+hellopw@users.noreply.github.com>
Date: Tue, 23 Sep 2025 01:55:17 +0000
Subject: [PATCH] fix no operations allowed after connection closed

---
 src/main/java/com/zaxxer/hikari/pool/PoolBase.java | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/main/java/com/zaxxer/hikari/pool/PoolBase.java b/src/main/java/com/zaxxer/hikari/pool/PoolBase.java
index 803f4bbbd..f37af52b0 100644
--- a/src/main/java/com/zaxxer/hikari/pool/PoolBase.java
+++ b/src/main/java/com/zaxxer/hikari/pool/PoolBase.java
@@ -157,6 +157,9 @@ void quietlyCloseConnection(final Connection connection, final String closureRea
    boolean isConnectionDead(final Connection connection)
    {
       try {
+         if (connection.isClosed()) {
+            return true;
+         }
          setNetworkTimeout(connection, validationTimeout);
          try {
             final var validationSeconds = (int) Math.max(1000L, validationTimeout) / 1000;