Remove session in ProtocolSupport directly without expiring

bukkit/src/main/java/com/github/games647/fastlogin/bukkit/BukkitLoginSession.java

@@ -51,12 +51,16 @@ public class BukkitLoginSession extends LoginSession {
         return ArrayUtils.clone(verifyToken);
     }
 
+    /**
+     * @return premium skin if available
+     */
     public synchronized Optional<SkinProperty> getSkin() {
         return Optional.ofNullable(skinProperty);
     }
 
     /**
      * Sets the premium skin property which was retrieved by the session server
+     * @param skinProperty premium skin
      */
     public synchronized void setSkinProperty(SkinProperty skinProperty) {
         this.skinProperty = skinProperty;

bukkit/src/main/java/com/github/games647/fastlogin/bukkit/FastLoginBukkit.java

@@ -152,7 +152,7 @@ public class FastLoginBukkit extends JavaPlugin implements PlatformPlugin<Comman
      * Wait before the server is fully started. This is workaround, because connections right on startup are not
      * injected by ProtocolLib
      *
-     * @return
+     * @return true if ProtocolLib can now intercept packets
      */
     public boolean isServerFullyStarted() {
         return serverStarted;

bukkit/src/main/java/com/github/games647/fastlogin/bukkit/listener/protocolsupport/ProtocolSupportListener.java

@@ -12,6 +12,7 @@ import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.Listener;
+import protocolsupport.api.events.ConnectionCloseEvent;
 import protocolsupport.api.events.PlayerLoginStartEvent;
 import protocolsupport.api.events.PlayerPropertiesResolveEvent;
 
@@ -41,6 +42,12 @@ public class ProtocolSupportListener extends JoinManagement<Player, CommandSende
         super.onLogin(username, new ProtocolLoginSource(loginStartEvent));
     }
 
+    @EventHandler
+    public void onConnectionClosed(ConnectionCloseEvent closeEvent) {
+        InetSocketAddress address = closeEvent.getConnection().getAddress();
+        plugin.getLoginSessions().remove(address.toString());
+    }
+
     @EventHandler
     public void onPropertiesResolve(PlayerPropertiesResolveEvent propertiesResolveEvent) {
         InetSocketAddress address = propertiesResolveEvent.getAddress();