Island Fly Code

package islandFly;

import com.wasteofplastic.askyblock.events.IslandEnterEvent;
import com.wasteofplastic.askyblock.events.IslandExitEvent;
import java.util.UUID;
import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.Server;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.plugin.PluginManager;
import org.bukkit.plugin.java.JavaPlugin;

public class IslandFly
  extends JavaPlugin
  implements Listener
{
  public void onEnable()
  {
    getServer().getPluginManager().registerEvents(this, this);
  }

  @EventHandler
  public void onIslandEnter(IslandEnterEvent event)
  {
    UUID owner = event.getIslandOwner();
    Player ownerusername = Bukkit.getServer().getPlayer(owner);
    if (ownerusername.hasPermission("suppixel.islandfly"))
    {
      UUID playerenter = event.getPlayer();
      Player playerenterusername = Bukkit.getServer().getPlayer(playerenter);
      playerenterusername.setAllowFlight(true);
      playerenterusername.setFlying(true);
      String IslandEnterMessage1raw = "&7[&cAuto-Fly&7] &fEnabled fly.";
      String IslandEnterMessage1fancy = ChatColor.translateAlternateColorCodes('&', "&7[&cAuto-Fly&7] &fEnabled fly.");
      playerenterusername.sendMessage(IslandEnterMessage1fancy);
    }
  }

  @EventHandler
  public void onIslandExit(IslandExitEvent event)
  {
    UUID owner = event.getIslandOwner();
    Player ownerusername = Bukkit.getServer().getPlayer(owner);
    if (ownerusername.hasPermission("suppixel.islandfly"))
    {
      UUID playerenter = event.getPlayer();
      Player playerenterusername = Bukkit.getServer().getPlayer(playerenter);
      playerenterusername.setAllowFlight(false);
      playerenterusername.setFlying(false);
      String IslandExitMessage1raw = "&7[&cAuto-Fly&7] &fDisabled fly.";
      String IslandExitMessage1fancy = ChatColor.translateAlternateColorCodes('&', "&7[&cAuto-Fly&7] &fDisabled fly.");
      playerenterusername.sendMessage(IslandExitMessage1fancy);
    }
  }
}