Add and remove a role, only one works

Hello,

I’m really blocked since few day. Context : A member want validate a newbie. He write $validation @newbie_name and, after verification, I remove “newbie role” then add “Member role”.

Here is my method and the problem is identified by comment :

private void validation_membres(User user, MessageChannel channel, String[] arguments, Guild guild, Member demandeur) {
		String joueurAvalider = "";
		GuildController gc = new GuildController(guild);
		
		for(int i = 0; i < arguments.length; i++) {
			joueurAvalider += arguments[i] + " ";
		}
		Role role_membres = guild.getRolesByName("Membre", true).get(0);
		Role role_newbies = guild.getRolesByName("newbies", true).get(0);		
		
		//if demandeur is member so he can validate a newbie
		if(demandeur.getRoles().contains(role_membres)) {
			//if joueur is a member of serveur
			if(joueurAvalider.startsWith("@")) {
				joueurAvalider = joueurAvalider.replace("@", "");
				Member avalider = guild.getMembersByEffectiveName(joueurAvalider.trim(), false).get(0);
				
				//if joueur is a newbie
				if(avalider.getRoles().contains(role_newbies)) {
					System.out.println("newbies oui");
					//Validation running
					//---------Here is the problem
					gc.removeRolesFromMember(avalider, role_newbies).queue();
					gc.addRolesToMember(avalider, role_membres).queue();
					
					
					if(!avalider.getRoles().contains(role_newbies) && avalider.getRoles().contains(role_membres)) {
						channel.sendMessage(":green_book: Joueur validé !").queue();
					}
				}
				else { //player not a newbie
					channel.sendMessage(":closed_book: Le joueur " + avalider.getEffectiveName() + " n'est pas un " + role_newbies.getName() + ". Il ne peut pas être validé.").queue();
				}
			}
			else { //player unknown on server
				channel.sendMessage(":closed_book: Le joueur à valider doit être tagué. Celà permet de vérifier qu'il est connu du serveur.").queue();
			}
		}
		else { //demandeur not a member
			channel.sendMessage(":closed_book: Uniquement les membres peuvent valider des joueurs.").queue();
		}
	}

I have permissions for this because when I do one by one, that works. With this code, role is add but no remove.

I’m lost. This morning, I’ve found this : Same problem

But if I do : guild.getManager(). I don’t have Add or remove …

Have you any ideas? Thank you

[Sanduhr32]

Well read my comment again edited it 👀 sorry

[MinnDevelopment]

Consult the documentation of GuildController#addRolesToMember

There is a huge warning explaining your issue:

Warning

This may not be used together with any other role add/remove/modify methods for the same Member within one event listener cycle! The changes made by this require cache updates which are triggered by lifecycle events which are received later. This may only be called again once the specific Member has been updated by a GuildMemberRoleAddEvent. To add and remove Roles from a Member you should use modifyMemberRoles(Member, Collection, Collection)