What behaviour is expected:

e.getEntity() of PortalCreateEvent is equal to the player who activates the portal

What behaviour is observed:

It returns null. Tried the same plugin, no changes, in a paper server, worked flawlessly

Steps/models to reproduce:

Try this code:
import org.bukkit.event.EventHandler;import org.bukkit.event.Listener;

import org.bukkit.event.world.PortalCreateEvent;

public class NoPortals implements Listener {

@EventHandler

public void onPortalIgnition(PortalCreateEvent e)

{ System.out.println(e.getEntity()); // I added some fancy text to display it in chat, nothing that should change the behaviour // entity is null everywhere else //Bukkit.getServer().broadcastMessage(ChatColor.translateAlternateColorCodes('&',"&c&lSERVER&r: " + e.getEntity() + " " + e.getReason())); // }

}
 
And activate the nether portal.

Plugin list:

None, except the one with this event.