V1.1.2 Removed closed session from session map for clean up

pom.xml

@@ -4,7 +4,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>com.example.sshd</groupId>
 	<artifactId>echo-sshd-server</artifactId>
-	<version>1.1.1</version>
+	<version>1.1.2</version>
 	<name>ECHO SSH SERVER</name>
 	<description>Learning Apache Mina SSHD library</description>
 	<parent>

src/main/java/com/example/sshd/core/EchoSessionListener.java

@@ -40,7 +40,13 @@ public class EchoSessionListener implements SessionListener {
 
 	@Override
 	public void sessionClosed(Session session) {
-		logger.info("sessionCreated: {}", session);
+		logger.info("sessionClosed: {}", session);
+		if (session.getIoSession().getRemoteAddress() instanceof InetSocketAddress) {
+			InetSocketAddress remoteAddress = (InetSocketAddress) session.getIoSession().getRemoteAddress();
+			String remoteIpAddress = remoteAddress.getAddress().getHostAddress();
+			logger.info("removing session: {} -> {}", remoteIpAddress, remoteSessionMapping.get(remoteIpAddress));
+			remoteSessionMapping.remove(remoteIpAddress);
+		}
 	}
 
 }