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   * 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.leak;
  
  import javax.jms.Connection;
  import javax.jms.ConnectionFactory;
  import javax.jms.Session;
  import java.lang.invoke.MethodHandles;
  
  import io.github.checkleak.core.CheckLeak;
  import org.apache.activemq.artemis.api.core.management.SimpleManagement;
  import org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl;
  import org.apache.activemq.artemis.core.server.ActiveMQServer;
  import org.apache.activemq.artemis.core.server.impl.ActiveMQServerImpl;
  import org.apache.activemq.artemis.core.server.impl.QueueImpl;
  import org.apache.activemq.artemis.core.server.impl.ServerStatus;
  import org.apache.activemq.artemis.jms.client.ActiveMQSession;
  import org.apache.activemq.artemis.tests.util.CFUtil;
  import org.junit.jupiter.api.AfterEach;
  import org.junit.jupiter.api.BeforeAll;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import static org.apache.activemq.artemis.tests.leak.MemoryAssertions.assertMemory;
  import static org.apache.activemq.artemis.tests.leak.MemoryAssertions.basicMemoryAsserts;
  import static org.junit.jupiter.api.Assumptions.assumeTrue;
  
  public class SimpleManagementLeakTest extends AbstractLeakTest {
  
     private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
  
     ActiveMQServer server;
  
     @BeforeAll
     public static void beforeClass() throws Exception {
        assumeTrue(CheckLeak.isLoaded());
     }
  
     @AfterEach
     public void validateServer() throws Exception {
        CheckLeak checkLeak = new CheckLeak();
  
        // I am doing this check here because the test method might hold a client connection
        // so this check has to be done after the test, and before the server is stopped
        assertMemory(checkLeak, 0, RemotingConnectionImpl.class.getName());
  
        server.stop();
  
        server = null;
  
        clearServers();
  
        ServerStatus.clear();
  
        assertMemory(checkLeak, 0, ActiveMQServerImpl.class.getName());
     }
  
     @Override
     @BeforeEach
     public void setUp() throws Exception {
        server = createServer(true, createDefaultConfig(1, true));
        server.getConfiguration().setJournalPoolFiles(4).setJournalMinFiles(2);
        server.start();
     }
  
     @Test
     public void testSimpleManagement() throws Exception {
        internalTest(false);
        basicMemoryAsserts();
     }
  
     @Test
     public void testSimpleManagementInjectedSession() throws Exception {
        internalTest(true);
        basicMemoryAsserts();
     }
  
     // a method to isolate variables and let them go into GC
     private void internalTest(boolean injectSession) throws Exception {
        CheckLeak checkLeak = new CheckLeak();
        String queueName = "myQueue";
        ConnectionFactory connectionFactory = CFUtil.createConnectionFactory("core", "tcp://localhost:61616");
        try (Connection connection = connectionFactory.createConnection()) {
           connection.start();
  
           ActiveMQSession sessionForManagement = (ActiveMQSession) connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
  
           for (int i = 0; i < 10; i++) {
              SimpleManagement simpleManagement = new SimpleManagement("tcp://localhost:61616", null, null);
              if (injectSession) {
                 simpleManagement.setSession(sessionForManagement.getCoreSession());
              }
              simpleManagement.listNetworkTopology();
           }
           assertMemory(checkLeak, 5, QueueImpl.class.getName());
  
        }
     }
  }