From b45e9818cc56d38fce5714ba0c3d566ab96c53c5 Mon Sep 17 00:00:00 2001
From: yhzdys <yhzdys@foxmail.com>
Date: Wed, 16 Oct 2024 15:13:03 +0800
Subject: [PATCH] Bug fix: Correct the issue with connection state detection in
 DefaultManagedAsyncClientConnection#isOpen().

---
 .../nio/DefaultManagedAsyncClientConnection.java  | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/httpclient5/src/main/java/org/apache/hc/client5/http/impl/nio/DefaultManagedAsyncClientConnection.java b/httpclient5/src/main/java/org/apache/hc/client5/http/impl/nio/DefaultManagedAsyncClientConnection.java
index e7142092f..e50cec04e 100644
--- a/httpclient5/src/main/java/org/apache/hc/client5/http/impl/nio/DefaultManagedAsyncClientConnection.java
+++ b/httpclient5/src/main/java/org/apache/hc/client5/http/impl/nio/DefaultManagedAsyncClientConnection.java
@@ -98,7 +98,20 @@ final class DefaultManagedAsyncClientConnection implements ManagedAsyncClientCon
 
     @Override
     public boolean isOpen() {
-        return ioSession.isOpen();
+        final IOSession ioSession = this.ioSession;
+        if (ioSession.isOpen()) {
+            final IOEventHandler handler = ioSession.getHandler();
+            if (handler instanceof HttpConnection) {
+                final HttpConnection conn = (HttpConnection) handler;
+                final ProtocolVersion protocolVersion = conn.getProtocolVersion();
+                if (protocolVersion != null && protocolVersion.greaterEquals(HttpVersion.HTTP_2)) {
+                    return conn.isOpen();
+                }
+            }
+            return true;
+        } else {
+            return false;
+        }
     }
 
     @Override