Is there a limited number for packet extension?

Smack Smack Dev
1

Is there a limited number for packet extension?

if I add these, they work only the first four.

if I add only the last two, they work.

Together don’t work.

ProviderManager.getInstance().addExtensionProvider(“mbAction”, “jabber:client”);

ProviderManager.getInstance().addExtensionProvider(“mbDocument”, “jabber:client”);

ProviderManager.getInstance().addExtensionProvider(“mbPage”, “jabber:client”);

ProviderManager.getInstance().addExtensionProvider(“mbBeam”, “jabber:client”);

ProviderManager.getInstance().addExtensionProvider(“presence”, “jabber:client”, new PresencePEP());

            ProviderManager.getInstance().addExtensionProvider("x", "[http://jabber.org/protocol/muc#user](http://jabber.org/protocol/muc#user)", new ItemPEP());