Unable to get keys from configurationsection

Hello,

I have a problem when gettings keys from a configurationsection while using ConfigurationSerializable classes:

Code:java

    /**
    * Load all arenas
    */
    public void loadArenas() {
        try {
            arenas = new ArrayList<Arena>(); // Clear list
            YamlConfiguration config = getArenaStorage().getStorage()
                    .getConfig();
            if (config.getConfigurationSection("arenas") != null) {
                ConfigurationSection section = config
                        .getConfigurationSection("arenas");
                for (String key : section.getKeys(false)) {
                    SendConsole.info(key);
                }
            } else {
                SendConsole.info("No arena's found!");
            }
        } catch (Exception ex) {
            // Error while loading
            SendConsole.severe("Unable to load the arenas!");
            ex.printStackTrace();
        }
    }

It does not give an error but the arena (ffa) does not get detected.
The variable section is not null.

Code:

arenas:
  ffa:
    ==: MVdWPlugin.Arena
    maxPlayers: 0
    name: ffa
    minPlayers: 0
    spawns:
    - ==: MVdWPlugin.SerializableLocation
      yaw: -275.24893
      pitch: 25.049957
      z: -702.123444714781
      y: 5.0
      world: world
      x: -997.3375287720156

Can someone help me?

- Maximvdw

I can confirm that it works when I remove the
==: MVdWPlugin.Arena line

EDIT by Moderator: merged posts, please use the edit button instead of double posting.