ARTEMIS-4768 _AMQ_SCHED_DELIVERY msg prop lost after broker restart

artemis-server/src/main/java/org/apache/activemq/artemis/core/server/impl/PostOfficeJournalLoader.java

@@ -231,22 +231,18 @@ public class PostOfficeJournalLoader implements JournalLoader {
             try {
                long scheduledDeliveryTime = record.getScheduledDeliveryTime();
 
-               if (scheduledDeliveryTime != 0 && scheduledDeliveryTime <= currentTime) {
-                  scheduledDeliveryTime = 0;
-                  record.getMessage().setScheduledDeliveryTime(0L);
-               }
-
                if (scheduledDeliveryTime != 0) {
+                  if (scheduledDeliveryTime <= currentTime) {
+                     // scheduled delivery time already passed while the broker wasn't running
+                     record.getMessage().setScheduledDeliveryTime(0L);
+                  } else {
                      record.getMessage().setScheduledDeliveryTime(scheduledDeliveryTime);
                   }
+               }
 
                MessageReference ref = postOffice.reload(record.getMessage(), queue, null);
 
                ref.setDeliveryCount(record.getDeliveryCount());
-
-               if (scheduledDeliveryTime != 0) {
-                  record.getMessage().setScheduledDeliveryTime(0L);
-               }
             } catch (Throwable t) {
                ActiveMQServerLogger.LOGGER.unableToLoadMessageFromJournal(t);
                continue;

tests/integration-tests/src/test/java/org/apache/activemq/artemis/tests/integration/client/ScheduledMessageRestartTest.java

@@ -0,0 +1,68 @@
+/*
+ * 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.activemq.artemis.tests.integration.client;
+
+import java.util.List;
+
+import org.apache.activemq.artemis.api.core.Message;
+import org.apache.activemq.artemis.api.core.QueueConfiguration;
+import org.apache.activemq.artemis.api.core.client.ClientMessage;
+import org.apache.activemq.artemis.api.core.client.ClientProducer;
+import org.apache.activemq.artemis.api.core.client.ClientSession;
+import org.apache.activemq.artemis.api.core.client.ClientSessionFactory;
+import org.apache.activemq.artemis.api.core.client.ServerLocator;
+import org.apache.activemq.artemis.core.server.ActiveMQServer;
+import org.apache.activemq.artemis.core.server.MessageReference;
+import org.apache.activemq.artemis.tests.util.ActiveMQTestBase;
+import org.apache.activemq.artemis.tests.util.RandomUtil;
+import org.junit.Before;
+import org.junit.Test;
+
+public class ScheduledMessageRestartTest extends ActiveMQTestBase {
+
+   private ActiveMQServer server;
+
+   @Override
+   @Before
+   public void setUp() throws Exception {
+      super.setUp();
+      server = createServer(true, false);
+      server.start();
+   }
+
+   @Test
+   public void testSchedulePropertyExistsAfterRestart() throws Exception {
+      final String queueName = RandomUtil.randomString();
+      final long scheduledTime = System.currentTimeMillis() * 2;
+      server.createQueue(new QueueConfiguration(queueName).setAddress(queueName));
+      ServerLocator locator = createInVMLocator(0);
+      ClientSessionFactory factory = locator.createSessionFactory();
+      ClientSession session = factory.createSession();
+      ClientProducer producer = session.createProducer(queueName);
+      ClientMessage m = session.createMessage(true);
+      m.putLongProperty(Message.HDR_SCHEDULED_DELIVERY_TIME, scheduledTime);
+      producer.send(m);
+      locator.close();
+      server.stop();
+      server.start();
+      List<MessageReference> scheduledMessages = server.locateQueue(queueName).getScheduledMessages();
+      assertEquals(1, scheduledMessages.size());
+      Message serverMessage = scheduledMessages.get(0).getMessage();
+      assertTrue(serverMessage.containsProperty(Message.HDR_SCHEDULED_DELIVERY_TIME));
+      assertEquals(scheduledTime, serverMessage.getLongProperty(Message.HDR_SCHEDULED_DELIVERY_TIME).longValue());
+   }
+}