Acquiring user list through the sender object

src/main/java/envoy/client/Client.java

@@ -3,6 +3,7 @@ package envoy.client;
 import java.io.Closeable;
 import java.io.IOException;
 import java.net.Socket;
+import java.util.HashMap;
 import java.util.Map;
 import java.util.logging.Logger;
 
@@ -56,13 +57,13 @@ public class Client implements Closeable {
 		// Register user creation processor
 		receiver.registerProcessor(User.class, sender -> { logger.info("Acquired user object " + sender); this.sender = sender; });
 
+		// Start receiver
+		new Thread(receiver).start();
+
 		// Write login credentials
 		logger.finest("Sending login credentials...");
 		SerializationUtils.writeBytesWithLength(credentials, socket.getOutputStream());
 
-		// Start receiver
-		new Thread(receiver).start();
-
 		// Wait for a maximum of five seconds to acquire the sender object
 		long start = System.currentTimeMillis();
 		while (sender == null) {
@@ -81,7 +82,7 @@ public class Client implements Closeable {
 	 * @since Envoy v0.3-alpha
 	 */
 	public void sendMessage(Message message) throws IOException {
-		if (!online) throw new IllegalStateException("Client is not online");
+		checkOnline();
 		SerializationUtils.writeBytesWithLength(message, socket.getOutputStream());
 	}
 
@@ -91,13 +92,17 @@ public class Client implements Closeable {
 	 * @since Envoy v0.2-alpha
 	 */
 	public Map<String, User> getUsers() {
-		// TODO
-		return null;
+		checkOnline();
+		Map<String, User> users = new HashMap<>();
+		sender.getContacts().forEach(u -> users.put(u.getName(), u));
+		return users;
 	}
 
 	@Override
 	public void close() throws IOException { if (online) socket.close(); }
 
+	private void checkOnline() { if (!online) throw new IllegalStateException("Client is not online"); }
+
 	/**
 	 * @return the sender object that represents this client.
 	 * @since Envoy v0.1-alpha

src/main/java/envoy/client/LocalDB.java

@@ -3,9 +3,7 @@ package envoy.client;
 import java.io.File;
 import java.io.IOException;
 import java.util.*;
-import java.util.logging.Logger;
 
-import envoy.client.util.EnvoyLog;
 import envoy.data.User;
 import envoy.util.SerializationUtils;
 
@@ -25,8 +23,6 @@ public class LocalDB {
 	private Map<String, User>	users	= new HashMap<>();
 	private List<Chat>			chats	= new ArrayList<>();
 
-	private static final Logger logger = EnvoyLog.getLogger(LocalDB.class.getSimpleName());
-
 	/**
 	 * Constructs an empty local database. To serialize any chats to the file
 	 * system, call {@link LocalDB#initializeDBFile()}.