Hi,
To use weld extensions.jar one has to download jboss logging 3.0 jar. I must say this was and is a difficult jar to find (or it is just my failing internet-search capabilities... :-). After an hour of searching the net I found this location:
http://tools.softwaremill.pl/nexus/content/repositories/jboss-public/org/jboss/logging/jboss-logging/3.0.0.Beta4/

Is this indeed the latest version? Is there a list of download locations for getting these type of 3rd party dependencies?

gr. Martin