ClassCastException when getting DelayInformation

Hi!

When I try to get the delay information of a packet I receive inside my PacketListener.processPacket(packet) I get the following exception:

ClassCastException: org.jivesoftware.smack.packet.DefaultPacketExtension

The line that causes the exeption is this:

DelayInformation inf = (DelayInformation)packet.getExtension( “x”, “jabber:x:delay” );

I have compiled the smack source using Ant and the build.xml.

Can this be a problem related to the smack.providers file as mentioned in:

Any help is much welcome!
Best regards,
Kartou

To answer my own questing I found a solution here:

Cheers