Solved How to cast an offline player to an online player?

Hey there, I just want to cast an offline player to an online player.
The problem is, I want to read out in the onEnable method some players from a config file which are saved in an ArrayList. After that I want to do smth with them. The problem is that it says that it cannot cast offline player to online player.

Compact piece of code:

Code:

    @Override
    public void onEnable() {
        readPlayers();
    }

---------
    @SuppressWarnings("deprecation")
    public void readPlayers() {
            for (String string : this.getConfig().getStringList("players.openJobs")) {
                players.add(string);
                countWeek((Player) Bukkit.getOfflinePlayer(string));   --- There's the problem
            }
    }

---------

    public void countWeek(Player p) {
        running.put(p, true);
        players.add(p.getName());
                PermissionUser user = PermissionsEx.getUser(p);
                ... unrelevant piece of code ...
     }

The error:

Code:

[08:48:54 ERROR]: Error occurred while enabling UtopicSystem v1.0 (Is it up to date?)
java.lang.ClassCastException: org.bukkit.craftbukkit.v1_8_R3.CraftOfflinePlayer cannot be cast to org.bukkit.entity.Player
        at com.Scrap.spawn.Main.readPlayers(Main.java:219) ~[?:?]
        at com.Scrap.spawn.Main.onEnable(Main.java:84) ~[?:?]
        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:321) ~[spigot-1.8.8.jar:git-Spigot-db6de12-18fbb24]
        at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:340) [spigot-1.8.8.jar:git-Spigot-db6de12-18fbb24]
        at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:405) [spigot-1.8.8.jar:git-Spigot-db6de12-18fbb24]
        at org.bukkit.craftbukkit.v1_8_R3.CraftServer.loadPlugin(CraftServer.java:357) [spigot-1.8.8.jar:git-Spigot-db6de12-18fbb24]
        at org.bukkit.craftbukkit.v1_8_R3.CraftServer.enablePlugins(CraftServer.java:317) [spigot-1.8.8.jar:git-Spigot-db6de12-18fbb24]
        at org.bukkit.craftbukkit.v1_8_R3.CraftServer.reload(CraftServer.java:741) [spigot-1.8.8.jar:git-Spigot-db6de12-18fbb24]
        at org.bukkit.Bukkit.reload(Bukkit.java:535) [spigot-1.8.8.jar:git-Spigot-db6de12-18fbb24]
        at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:25) [spigot-1.8.8.jar:git-Spigot-db6de12-18fbb24]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) [spigot-1.8.8.jar:git-Spigot-db6de12-18fbb24]
        at org.bukkit.craftbukkit.v1_8_R3.CraftServer.dispatchCommand(CraftServer.java:641) [spigot-1.8.8.jar:git-Spigot-db6de12-18fbb24]
        at org.bukkit.craftbukkit.v1_8_R3.CraftServer.dispatchServerCommand(CraftServer.java:627) [spigot-1.8.8.jar:git-Spigot-db6de12-18fbb24]
        at net.minecraft.server.v1_8_R3.DedicatedServer.aO(DedicatedServer.java:412) [spigot-1.8.8.jar:git-Spigot-db6de12-18fbb24]
        at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:375) [spigot-1.8.8.jar:git-Spigot-db6de12-18fbb24]
        at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot-1.8.8.jar:git-Spigot-db6de12-18fbb24]
        at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot-1.8.8.jar:git-Spigot-db6de12-18fbb24]
        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_131]

Is there a method to do that otherwise?

I hope you can help me

 

There's a method offlineplayer.getPlayer(), but it will return null if the player is offline of course.

 

You could ise @Caderape2 answer or you can use Bukkit#getServer#getPlayer and check if its null or not.

 

@LRK @Scrapnix @Caderape2
Its better to use OfflinePlayer#isOnline() instead of null checking.

 

Hey there @LRK @Caderape2 @Zombie_Striker,
I solved the problem myself, but thx for your help. The problem is that I had to read out the names and execute a method independently of their online status. Because of that I worked simply only with their names.
//Closed