Hello, my question: RoomInfo info = MultiUserChat.getRoomInfo(xmppConnection, entry.getJid()); then cast this exception!

Smack Smack Dev
1

code:

RoomInfo info = MultiUserChat.getRoomInfo(xmppConnection, entry.getJid());

then cast exception!

detail exception:

java.lang.RuntimeException: java.lang.ClassCastException: org.jivesoftware.smack.packet.DefaultPacketExtension

…

E/AndroidRuntime( 1847): Caused by: java.lang.ClassCastException: org.jivesoftware.smack.packet.DefaultPacketExtension

E/AndroidRuntime( 1847): at org.jivesoftware.smackx.Form.getFormFrom(Form.java:69)

E/AndroidRuntime( 1847): at org.jivesoftware.smackx.muc.RoomInfo.(RoomInfo.java:90)

E/AndroidRuntime( 1847): at org.jivesoftware.smackx.muc.MultiUserChat.getRoomInfo(MultiUserChat.java:238)

2

Do you use aSmack? If so, did you follow the instructions from the README?

Otherwise please state your used Smack version.

3

packet log:

11:45:03 AM SNT

11:45:03 AM RCV http://jabber.org/protocol/muc#roominfo心得群020140823T05:08:34

4

Sorry, I notice that there is a language barrier here, but this doesn’t answer any of my questions.

5

hi, thanks for you answer!

i did not use aSmack, and use xabber(version 0.9.3b) smack/smackx

maybe xabber use aSmack, i’m not sure!

6

thanks for everyone!

I’v solved this problem, must add this code:

ProviderManager pm = ProviderManager.getInstance();

pm.addExtensionProvider(“x”, “jabber:x:data”, new DataFormProvider());

…

RoomInfo info = MultiUserChat.getRoomInfo(xmppConnection, entry.getJid());

so, solved this problem.