I'm trying to get cometd working with Felix. I believe that I have it
mostly working but I'm getting a ClassCastException on cometd requests,
specifically "can not cast
org.mortbay.jetty.nio.SelectChannelConnector$RetryContinuation to
org.mortbay.util.ajax.Continuation" (this is from memory so it may be a
bit off). I think that this is a classloader issue since the
RetryContinuation class implements the Continuation interface. I know
that split packages can cause ClassCastExceptions due to different
classloaders but I'm not sure this is the problem.
I'm using the following bundles:
- org.apache.felix:org.apache.felix.http.jetty:0.9.0-SNAPSHOT (modified
to use jetty 6.1.11)
- org.mortbay.jetty:jetty:6.1.11
- org.mortbay.jetty:jetty-util:6.1.11
- org.mortbay.jetty:servlet-api-2.5:6.1.11
- a custom comet bundle that
- inlines org.mortbay.jetty:cometd-api:0.9.20080221and
org.mortbay.jetty:cometd-bayeux:6.1.11
- maps org.mortbay.cometd.continuation.ContinuationCometdServlet to
/cometd
jetty-util exports org.mortbay.util but cometd-bayeux has
org.mortbay.util.ArrayQueue. I managed to get my custom comet bundle to
compile by making org.mortbay.util a private package. However, this
duplicates all of org.mortbay.util in my bundle which I think is causing
the ClassCastException.
What is the best way to handle the split package and avoid
ClassCastExceptions?
Tim
