The cometd support looks very interesting but it does not work for me. I want
to start using your bundle but I get the same class cast exception. I also do
not understand how it could work since the HTTP bundle does not export the
org.mortbay classes but the cometd must use them?
I also do not understand how your sample bundle works, where does it gets the
dojo.js from?
Would be great if this works though! Kind regards,
Peter Kriens
On 15 jul. 2008, at 04:53, Tim Moloney wrote:
> Tim Moloney wrote:
>> Tim Moloney wrote:
>>>
>>> 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
>>>
>>
>> I found the split-package command in the bnd documentation. I tried both
>> merge-first and merge-last but I still got the ClassCastExceptions. I think
>> this is because the org.mortbay.util package was still being duplicated in
>> my bundle. I then tried first which only copied org.mortbay.util.ArrayQueue
>> into my bundle but then the rest of org.mortbay.util couldn't be found. I
>> finally tried using the following but I'm still getting the original
>> ClassCastExceptions.
>>
>> <Private-Package>org.mortbay.util;-split-package:=first</Private-Package>
>> <Import-Package>!org.mortbay.log,!org.mortbay.thread,!org.mortbay.util.ajax,*</Import-Package>
>>
>> <Require-Bundle>org.mortbay.jetty.util</Require-Bundle>
>>
>> I'm out of ideas. Does anyone have any suggestions?
>>
>> Tim
>>
>
> I managed to get things working by adding ArrayQueue to the jetty-util bundle
> and modifying how http.jetty is packaged.
>
> For http.jetty, I simply changed the Private-Package instruction as shown
> below. Can someone review the change and commit it, if it doesn't break
> anything?
>
> Tomorrow, I'll investigate if I really needed to move ArrayQueue to the
> jetty-util bundle.
>
> Index: pom.xml
> ===================================================================
> --- pom.xml (revision 676451)
> +++ pom.xml (working copy)
> @@ -97,7 +97,7 @@
> </Export-Package>
> <Private-Package>
> org.apache.felix.http.jetty,
> - org.mortbay.*;-split-package:=merge-first
> + org.mortbay.jetty.*;-split-package:=merge-first
> </Private-Package>
> <Import-Package>
> javax.net.ssl; javax.security.cert;
>
>
> Tim
>
