some optimizations

chatto/src/main/java/org/ros/chatto/logged/LoggedUser.java

@@ -26,7 +26,7 @@ import lombok.Setter;
 @Setter
 public class LoggedUser implements HttpSessionBindingListener {
 
-	private String username;
+	private final String username;
 	private UserService userService;
 	private UserTokenService userTokenService;
 	
@@ -37,6 +37,7 @@ public class LoggedUser implements HttpSessionBindingListener {
 	}
 
 	public LoggedUser() {
+		username = null;
 	}
 
 	@Override

chatto/src/main/java/org/ros/chatto/security/TokenAuthenticationFilter.java

@@ -28,9 +28,6 @@ import org.springframework.web.filter.GenericFilterBean;
 @Component
 public class TokenAuthenticationFilter extends GenericFilterBean {
 
-	@Autowired
-	private TokenRepository tokenRepository;
-	
 	@Autowired
 	private UserTokenService userTokenService;
 

chatto/src/main/resources/application.properties

@@ -25,3 +25,5 @@ spring.jackson.serialization.write-dates-as-timestamps=false
 spring.cache.jcache.config=classpath:ehcache.xml
 logging.level.org.springframework.cache = DEBUG
 #test.bindAddress=192.168.1.106
+
+chatto.token.timeout-duration=10_000