Added a script to check 2 clients with same ID fails

broker/pom.xml

@@ -144,8 +144,8 @@
 
         <dependency>
             <groupId>org.eclipse.paho</groupId>
-            <artifactId>mqtt-client</artifactId>
-            <version>0.4.0</version>
+            <artifactId>org.eclipse.paho.client.mqttv3</artifactId>
+            <version>1.0.1</version>
             <scope>test</scope>
         </dependency>
         
@@ -214,11 +214,11 @@
         </plugins>
     </build>
     
-    <!--repositories>
+    <repositories>
         <repository>
             <id>Paho Releases</id>
             <url>https://repo.eclipse.org/content/repositories/paho-releases/</url>
         </repository>
 
-    </repositories-->
+    </repositories>
 </project>

broker/src/main/java/org/eclipse/moquette/spi/impl/ProtocolProcessor.java

@@ -172,6 +172,7 @@ class ProtocolProcessor implements EventHandler<ValueEvent> {
             }
 
             m_clientIDs.get(msg.getClientID()).getSession().close(false);
+            LOG.info("Found an existing connection with same client ID <{}>, forced to close", msg.getClientID());
         }
 
         ConnectionDescriptor connDescr = new ConnectionDescriptor(msg.getClientID(), session, msg.isCleanSession());

bundle/pom.xml

@@ -150,8 +150,8 @@
 
         <dependency>
             <groupId>org.eclipse.paho</groupId>
-            <artifactId>mqtt-client</artifactId>
-            <version>0.4.0</version>
+            <artifactId>org.eclipse.paho.client.mqttv3</artifactId>
+            <version>1.0.1</version>
             <scope>test</scope>
         </dependency>
     </dependencies>
@@ -221,10 +221,10 @@
         </plugins>
     </build>
     
-    <!--repositories>
+    <repositories>
         <repository>
             <id>Paho Releases</id>
             <url>https://repo.eclipse.org/content/repositories/paho-releases/</url>
         </repository>
-    </repositories-->
+    </repositories>
 </project>

tools_scripts/twoClientsWithSameID.groovy

@@ -0,0 +1,34 @@
+@GrabResolver(name='Paho', root='https://repo.eclipse.org/content/repositories/paho-releases/')
+@Grab(group='org.eclipse.paho', module='org.eclipse.paho.client.mqttv3', version='1.0.1', ext='jar')
+
+
+import org.eclipse.paho.client.mqttv3.MqttClient
+import org.eclipse.paho.client.mqttv3.MqttMessage
+import org.eclipse.paho.client.mqttv3.MqttException
+import org.eclipse.paho.client.mqttv3.persist.MqttDefaultFilePersistence
+
+String host = args[0]
+
+String tmpDir = System.getProperty("java.io.tmpdir")
+MqttDefaultFilePersistence dataStore1 = new MqttDefaultFilePersistence(tmpDir + "/client1")
+MqttClient client1 = new MqttClient("tcp://${host}:1883", "ConnectedClient", dataStore1)
+client1.connect()
+println "Client1 connected"
+client1.subscribe("topic", 0)
+println "Client1 subscribed to topic"
+
+sleep(500)
+
+//now connect a second client but with the same ID
+MqttDefaultFilePersistence dataStore2 = new MqttDefaultFilePersistence(tmpDir + "/client2")
+MqttClient client2 = new MqttClient("tcp://${host}:1883", "ConnectedClient", dataStore2)
+client2.connect()
+println "Client2 connected"
+client2.subscribe("topic", 0)
+println "Client2 subscribed to topic"
+
+client1.disconnect()
+println "Client1 disconnected"
+
+client2.disconnect()
+println "Client2 disconnected"