xpath filter question

[John Dubchak]

Hi,

I am trying to create a JavaDSL route that filters an incoming XML from 
an ActiveMQ queue.  The message is being delivered correctly and I can 
print it out if I short-circuit it with a processor that dumps the 
message.  However, removing the processor, I cannot seem to get the 
correct xpath expression to match on a particular value:

from("activemq:cdw.Notifications")
  .filter()
.xpath("/parent_node[child_node = 'value of text']")

Any insight into what I've messed up?

Thanks,
John