Smart Bukkit statics. The nice trick to have static access without spoiling the fun with memory management.

Trickery.java

public class AnyClass
{
    
    private final MainClass plugin;
    
    public AnyClass(MainClass plugin)
    {
        this.plugin = plugin;
    }
    
    public static String getSomething()
    {
        return getInstance().plugin.getConfig().getString("something");
    }
    
    private static AnyClass getInstance()
    {
        // Just have an instance of AnyClass in the main class
        // with an appropiate getter method (or <3 Lombok and use @Getter :P)
        return JavaPlugin.getPlugin(MainClass.class).getAnyClass();
    }
}

No u feg, kthxbai