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The following commit(s) were added to refs/heads/main by this push:
     new b6cf05b3ddf7 CAMEL-25724: camel-jms - preserveMessageQos uses the time 
to live of the endpoint for a message without expiration (#28032)
b6cf05b3ddf7 is described below

commit b6cf05b3ddf78f3ab33795ff1e886560e31c03ac
Author: allthingssecurity <[email protected]>
AuthorDate: Sun Oct 18 13:20:38 2026 +0530

    CAMEL-25724: camel-jms - preserveMessageQos uses the time to live of the 
endpoint for a message without expiration (#28032)
    
    Co-authored-by: Claude Opus 5.5 <[email protected]>
---
 .../camel/component/jms/JmsConfiguration.java      |   4 +
 .../jms/JmsPreserveMessageQosTimeToLiveTest.java   | 174 +++++++++++++++++++++
 .../ROOT/pages/camel-4x-upgrade-guide-4_24.adoc    |   7 +
 3 files changed, 185 insertions(+)

diff --git 
a/components/camel-jms/src/main/java/org/apache/camel/component/jms/JmsConfiguration.java
 
b/components/camel-jms/src/main/java/org/apache/camel/component/jms/JmsConfiguration.java
index 44d3024a76d7..8f69d03e6938 100644
--- 
a/components/camel-jms/src/main/java/org/apache/camel/component/jms/JmsConfiguration.java
+++ 
b/components/camel-jms/src/main/java/org/apache/camel/component/jms/JmsConfiguration.java
@@ -692,6 +692,10 @@ public class JmsConfiguration implements Cloneable {
                     if (ttl <= 0) {
                         ttl = 1;
                     }
+                } else {
+                    // the message has no expiration, so use the time to live 
of the endpoint (timeToLive, or the
+                    // requestTimeout for request/reply), which is 0 (never 
expires) when none is configured
+                    ttl = this.getTimeToLive();
                 }
 
                 int priority = message.getJMSPriority();
diff --git 
a/components/camel-jms/src/test/java/org/apache/camel/component/jms/JmsPreserveMessageQosTimeToLiveTest.java
 
b/components/camel-jms/src/test/java/org/apache/camel/component/jms/JmsPreserveMessageQosTimeToLiveTest.java
new file mode 100644
index 000000000000..a210073d88b1
--- /dev/null
+++ 
b/components/camel-jms/src/test/java/org/apache/camel/component/jms/JmsPreserveMessageQosTimeToLiveTest.java
@@ -0,0 +1,174 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.camel.component.jms;
+
+import java.util.Collections;
+
+import jakarta.jms.DeliveryMode;
+import jakarta.jms.Message;
+import jakarta.jms.MessageProducer;
+
+import org.apache.camel.CamelContext;
+import org.apache.camel.ConsumerTemplate;
+import org.apache.camel.Exchange;
+import org.apache.camel.ProducerTemplate;
+import org.apache.camel.builder.RouteBuilder;
+import org.apache.camel.component.jms.JmsConfiguration.CamelJmsTemplate;
+import org.apache.camel.test.infra.core.CamelContextExtension;
+import org.apache.camel.test.infra.core.DefaultCamelContextExtension;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Order;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.RegisterExtension;
+
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.ArgumentMatchers.longThat;
+import static org.mockito.ArgumentMatchers.same;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+/**
+ * With preserveMessageQos=true, a message that carries no JMSExpiration must 
be sent with the time to live of the
+ * endpoint (timeToLive, or requestTimeout for request/reply), as documented 
for the option.
+ */
+class JmsPreserveMessageQosTimeToLiveTest extends AbstractJMSTest {
+
+    @Order(2)
+    @RegisterExtension
+    public static CamelContextExtension camelContextExtension = new 
DefaultCamelContextExtension();
+
+    private static final String QUEUE = "JmsPreserveMessageQosTimeToLiveTest";
+
+    protected CamelContext context;
+    protected ProducerTemplate template;
+    protected ConsumerTemplate consumer;
+
+    @Test
+    void inOnlyMessageWithoutExpirationUsesEndpointTimeToLive() throws 
Exception {
+        MessageProducer producer = mock(MessageProducer.class);
+        Message message = messageWithoutQosHeaders(0L);
+
+        
sendInOnly("activemq:queue:qos?preserveMessageQos=true&timeToLive=5000", 
producer, message);
+
+        verify(producer).send(same(message), eq(DeliveryMode.PERSISTENT), 
eq(4), eq(5000L));
+    }
+
+    @Test
+    void inOutRequestWithoutExpirationUsesRequestTimeout() throws Exception {
+        MessageProducer producer = mock(MessageProducer.class);
+        Message message = messageWithoutQosHeaders(0L);
+
+        JmsEndpoint endpoint = 
context.getEndpoint("activemq:queue:qos?preserveMessageQos=true", 
JmsEndpoint.class);
+        CamelJmsTemplate inOut = (CamelJmsTemplate) 
endpoint.createInOutTemplate();
+        inOut.doSend(producer, message);
+
+        verify(producer).send(same(message), eq(DeliveryMode.PERSISTENT), 
eq(4), eq(20000L));
+    }
+
+    @Test
+    void inOutRequestWithoutExpirationAndTimeToLiveDisabledNeverExpires() 
throws Exception {
+        MessageProducer producer = mock(MessageProducer.class);
+        Message message = messageWithoutQosHeaders(0L);
+
+        JmsEndpoint endpoint = context.getEndpoint(
+                
"activemq:queue:qos?preserveMessageQos=true&disableTimeToLive=true", 
JmsEndpoint.class);
+        CamelJmsTemplate inOut = (CamelJmsTemplate) 
endpoint.createInOutTemplate();
+        inOut.doSend(producer, message);
+
+        verify(producer).send(same(message), eq(DeliveryMode.PERSISTENT), 
eq(4), eq(0L));
+    }
+
+    @Test
+    void messageExpirationStillOverridesEndpointTimeToLive() throws Exception {
+        MessageProducer producer = mock(MessageProducer.class);
+        // an expiration one hour ahead: the remaining time is used, not the 
endpoint value of 5 seconds
+        Message message = messageWithoutQosHeaders(System.currentTimeMillis() 
+ 3600000L);
+
+        
sendInOnly("activemq:queue:qos?preserveMessageQos=true&timeToLive=5000", 
producer, message);
+
+        verify(producer).send(same(message), eq(DeliveryMode.PERSISTENT), 
eq(4),
+                longThat(ttl -> ttl > 3500000L && ttl <= 3600000L));
+    }
+
+    @Test
+    void endpointWithoutTimeToLiveStillSendsMessagesThatNeverExpire() throws 
Exception {
+        MessageProducer producer = mock(MessageProducer.class);
+        Message message = messageWithoutQosHeaders(0L);
+
+        sendInOnly("activemq:queue:qos?preserveMessageQos=true", producer, 
message);
+
+        verify(producer).send(same(message), eq(DeliveryMode.PERSISTENT), 
eq(4), eq(0L));
+    }
+
+    @Test
+    void brokerReceivesTheEndpointTimeToLive() {
+        long before = System.currentTimeMillis();
+        template.sendBody("direct:start", "hello");
+
+        Exchange received = consumer.receive("activemq:queue:" + QUEUE, 10000);
+        assertNotNull(received, "the message must reach the queue");
+        Long expiration = received.getMessage().getHeader("JMSExpiration", 
Long.class);
+        assertNotNull(expiration);
+        assertTrue(expiration >= before + 600000L && expiration <= 
System.currentTimeMillis() + 600000L,
+                "the message must expire about 10 minutes after it was sent, 
but JMSExpiration was " + expiration);
+    }
+
+    private void sendInOnly(String uri, MessageProducer producer, Message 
message) throws Exception {
+        JmsEndpoint endpoint = context.getEndpoint(uri, JmsEndpoint.class);
+        CamelJmsTemplate inOnly = (CamelJmsTemplate) 
endpoint.createInOnlyTemplate();
+        inOnly.doSend(producer, message);
+    }
+
+    private static Message messageWithoutQosHeaders(long expiration) throws 
Exception {
+        Message message = mock(Message.class);
+        when(message.getJMSExpiration()).thenReturn(expiration);
+        when(message.getJMSPriority()).thenReturn(4);
+        when(message.getJMSDeliveryMode()).thenReturn(DeliveryMode.PERSISTENT);
+        
when(message.getPropertyNames()).thenReturn(Collections.emptyEnumeration());
+        return message;
+    }
+
+    @Override
+    public String getComponentName() {
+        return "activemq";
+    }
+
+    @Override
+    protected RouteBuilder createRouteBuilder() {
+        return new RouteBuilder() {
+            @Override
+            public void configure() {
+                from("direct:start").to("activemq:queue:" + QUEUE + 
"?preserveMessageQos=true&timeToLive=600000");
+            }
+        };
+    }
+
+    @Override
+    public CamelContextExtension getCamelContextExtension() {
+        return camelContextExtension;
+    }
+
+    @BeforeEach
+    void setUpRequirements() {
+        context = camelContextExtension.getContext();
+        template = camelContextExtension.getProducerTemplate();
+        consumer = camelContextExtension.getConsumerTemplate();
+    }
+}
diff --git 
a/docs/user-manual/modules/ROOT/pages/camel-4x-upgrade-guide-4_24.adoc 
b/docs/user-manual/modules/ROOT/pages/camel-4x-upgrade-guide-4_24.adoc
index a9f9da1ef268..85e983b9376f 100644
--- a/docs/user-manual/modules/ROOT/pages/camel-4x-upgrade-guide-4_24.adoc
+++ b/docs/user-manual/modules/ROOT/pages/camel-4x-upgrade-guide-4_24.adoc
@@ -1090,6 +1090,13 @@ comment after the transition was made, `watchers` and 
`addIssue` can fail after
 (`addIssue` sets the created issue as the message body before it adds the 
watchers), and a retry or redelivery
 repeats the earlier requests.
 
+=== camel-jms - preserveMessageQos uses the time to live of the endpoint for a 
message without expiration
+
+With `preserveMessageQos=true`, a message without a `JMSExpiration` (header 
missing or 0) was sent with no time to
+live, so it never expired, even when the endpoint has a `timeToLive` and, for 
request/reply, although Camel sets the
+`requestTimeout` as time to live otherwise. Such a message now gets the time 
to live of the endpoint, as the option
+documents. Set `disableTimeToLive=true` to send it without time to live.
+
 === camel-twitter - twitter-search applies its query options again
 
 Since Camel 4.0 (the upgrade to Twitter4J 4.1, whose `Query` is immutable) the 
`twitter-search` endpoint sent only the

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