en_messages.yml for different languages

I'm working on a small project and I want to add multiple languages using _messages.yml, like en_messages.yml would be English. And the language is editable in the config.yml. This is the code that I'm using from a previous project, but it doesn't seem to work on this current project.

Code:java

public FileConfiguration MsgConfig = null;
public File MsgConfigFile = null;
 
 
public FileConfiguration getMsgConfig() {
if(MsgConfig == null) {
reloadMsgConfig();
}
return MsgConfig;
}
public void reloadMsgConfig() {
 
if (MsgConfigFile == null) {
MsgConfigFile = new File(System.getProperty("me.Dreeass.RegionSpawn"), getConfig().getString("Language") + "_messages.yml" );
}
MsgConfig = YamlConfiguration.loadConfiguration(MsgConfigFile);
 
InputStream defConfigStream = Main.class.getResourceAsStream(getConfig().getString("Language") + "_messages.yml");
 
if(defConfigStream != null) {
YamlConfiguration defConfig = YamlConfiguration.loadConfiguration(defConfigStream);
MsgConfig.setDefaults(defConfig);
}
}

I'm getting an NPE error here on the second line.

Code:java

if(args.length == 0) {
player.sendMessage(plugin.Msg("More-Arguments-Needed", player.getName()));
return false;
}

Which refers to the 6th line (I have a 2 methods for an easy replacement, e.g: %regex-> replacement):

Code:java

public String Msg(String input, String playername) {
if(playername == null){
playername = "console";
}
 
String config = getMsgConfig().getString(input);
String result = config.replaceAll("(&([a-f0-9]))", "\u00A7$2").replaceAll("%player", playername);
 
return result;
};
 
public String Msg(String input, String playername, String regex, String replacement) {
String result = Msg(input, playername).replaceAll("%" + regex, replacement);
return result;
};

Anyone? Else I'll have to implement it without multilang for now.

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

 

I fell back to using java ResourceBundles.

 

If this is the line that's causing the NPE:

String config = getMsgConfig().getString(input);

then getMsgConfig() must be what is null. Where is that function defined?

 

Check the first code part. But this code worked fine in my other plugin, I just edited a bit.