"If" doesn't work properly

Hello Bukkit,
I am programming a group plugin. The problem with it is, that even though, when a player is in a certain group, the plugin doesn't realize that. I wrote some methods in the main class, that check, what group the player is in, which get called in "GroupCommand.java". I assume it is a small mistake, that ruins the last hours of my weekend!
Hope, that Bukkit can help. (Sorry for my bad english.)

Stym.java (main class): http://hastebin.com/adifaxaraf.coffee
GroupCommand.java (command-executing class): http://hastebin.com/ozaduviwun.avrasm

plugin.yml:

name: Stym
main: Stym
version: 1.3.3.7
commands:
group:​

config.yml:

groups:
iron:
- Player
- Another_Player
diamond:
- Rich_Player​

 

Your plugin.yml is formatted incorrectly. It should be:

Code:

main:me.Stym.Stym
title:Stym
version:1.3.3.7
commands:
group:
     description: Description
     usage: /group <args>

 

This looks like a duplicate of the thread you made earlier today?
http://bukkit.org/threads/unknown-bug.392818/

 

Similar, but the problem is different. I didn't get answers there too.

 

Did you try mine? Your plugin.yml looks horrible.

 

That is not true. It is correct too. I do it like this everytime and it works.

Yes, I tried yours, just to be sure. As I said: The problem isn't caused by the plugin.yml.

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

 

No it isn't correct, every space matteds in yml files