Hello Dan,
did you have the chance to further investigate this issue?
Many thanks in advance,
Matteo
On 27/01/2014 16:16, Pampolini Matteo wrote:
Hello Dan,
thanks for your quick reply. NullPointerException occurs just after few
response packets are received,
usually Discovery Proxy is the first one to answer. Sorry for my
question, I do not know the exact internals
of CXF implementation, but if discovery client is running, why should
bus be garbage collected? Anyway,
if I correctly understood what you suggested I declared client as a
static member of unit test class, but
the result is the same.
Matteo
On 27/01/2014 15:58, Daniel Kulp wrote:
Do you have any idea how long after you send the probe that you get this? My
gut feeling is that the client is sending a probe, getting some responses (or
none) back, returning to the main, getting discarded and garbage collected, and
then another response is coming in. The only reason the bus should be null is
if destroy had been called on the client.
As a test, can you try sticking the ws-discovery client into a static or
something so it doesn’t get garbage collected? I’d like to see if that helps.
That would help verify if that’s the problem.
Dan
On Jan 27, 2014, at 9:39 AM, Pampolini Matteo <matteo.pampol...@selex-es.com>
wrote:
Hello Dan how are you?
Please excuse me for the very long delay of this answer, I was involved
in other activities
and I started plying again with this issue only few days ago.
I tried the unit test provided with 2.7.8 version and it works, of
course. But if I disable the
fake server and make a test on my real environment I still get an error.
In particular I get
an unhandled NullPointerException in method onMessage of ClientImpl
class because bus
is actually null and the subsequent call:
PhaseManager pm = bus.getExtension(PhaseManager.class);
generates the error. I simply added the following lines of code:
if (bus == null)
{
getConduitSelector().complete(message.getExchange());
return;
}
and everything works fine, but I guess if this is the right approach, I
don't know if there'
something else that must be released. Do you have an idea of why bus is
null? I suspect
that the SOAP fault sent by WCF Discovery Proxy is intercepted, but then
the message
goes on for further processing causing the error.
Many many thanks once again in advance for your kind support,
Matteo
On 24/10/2013 18:40, Daniel Kulp wrote:
I really don’t know what’s going on with this.
I just created a simple unit test using your exact messages and it seems to be
OK:
http://svn.apache.org/viewvc?view=revision&revision=1535433
The fake service sends 3 messages, the first is the fault from your proxy and
then two “valid” messages. The assertEquals(2, size) thing passes so there
are properly two responses.
Dan
On Oct 24, 2013, at 11:25 AM, Pampolini Matteo <matteo.pampol...@selex-es.com>
wrote:
Sorry Dan,
I enabled exception stack trace prints in the wrong place, doing it in
handleResponse gives me:
java.util.concurrent.ExecutionException:
org.apache.cxf.binding.soap.SoapFault: Invalid SOAP fault conte
at
org.apache.cxf.jaxws.JaxwsClientCallback$2.get(JaxwsClientCallback.java:99)
at
org.apache.cxf.ws.discovery.WSDiscoveryClient$1.handleResponse(WSDiscoveryClient.java:357)
Matteo
On 24/10/2013 16:58, Daniel Kulp wrote:
On Oct 24, 2013, at 10:42 AM, Daniel Kulp <dk...@apache.org> wrote:
On Oct 24, 2013, at 10:05 AM, Pampolini Matteo <matteo.pampol...@selex-es.com>
wrote:
thanks for your reply, I downloaded and tested snapshot
2.7.8-20131023.085812-20 but now, even with
WCF proxy stopped, I'm not able to find any device, am I doing anything
wrong?
That’s not good. Not sure what would cause that. Can you wireshark things to
make sure things are responding properly?
Actually, any chance you can put a breakpoint on line 356 of
WSDiscoveryClient? I’d like to know if the callback is at least being called.
If you cannot put breakpoint on the stuff in the jar, can you just grab the
source for that one class from:
http://svn.apache.org/repos/asf/cxf/branches/2.7.x-fixes/services/ws-discovery/ws-discovery-api/src/main/java/org/apache/cxf/ws/discovery/WSDiscoveryClient.java
and add that to your project (and modify the package) and call that instead of the
CXF version? I’d definitely like to make sure the handler is properly called. If
not, then I know the issue is down in the UDPConduit. If it is called, I’d like to
know what’s going on. Likely some sort of exception, but not really sure.
(although, looking at that, we probably SHOULD be at least saving the first exception
and if size() is 0 at the end and there is an exception, throw it) Need to think a
bit more. If ONE (or more) services return a fault, but at least one service does
not, what should be the right behavior? Return the one that didn’t and ignore the
faults? Maybe provide an optional List<Exception> to record any faults?
Hmm…..
Dan
Dan
Regards, Matteo
On 23/10/2013 22:21, Daniel Kulp wrote:
On Oct 23, 2013, at 8:37 AM, Pampolini Matteo <matteo.pampol...@selex-es.com>
wrote:
Hi Dan,
did you find some time to look at this issue?
Just fixed, I think. Can you give the next snapshots a try?
Dan
Thanks, Matteo
-------- Original Message --------
Subject: Re: WS-Discovery does not work with a WCF discovery proxy (should
be fixed in CXF Jira)
Date: Wed, 16 Oct 2013 11:21:38 +0200
From: Pampolini Matteo <matteo.pampol...@selex-es.com>
To: users@cxf.apache.org <users@cxf.apache.org>
CC: Daniel Kulp <dk...@apache.org>
Hi Dan,
many thanks for your quick reply. Please find attached both exceptions
traces (I had to enable them in WSDiscoveryClient code) and Wireshark
captures. The address from which I start WS-Discovery is 172.19.121.75
while the proxy is hosted at 172.19.121.69. You can note that the proxy
replies with SOAP fault messages, but after that all ONVIF devices on
the network reply by themselves, then I expected my client to receive
and process the replies anyway.
I also tried directly with the proxy without success.
Regards, Matteo
On 15/10/2013 18:58, Daniel Kulp wrote:
On Oct 15, 2013, at 12:04 PM, Pampolini Matteo <matteo.pampol...@selex-es.com>
wrote:
Hello there,
I'm using CXF WS-Discovery to find ONVIF devices on my network.
After a patch from Dan, included from version 2.7.5, that allows to set
discovery version to 1.0 everything
was fine, but now I'm facing a new issue if a discovery proxy developed with
.NET WCF is in the same network,
I get some exceptions (I recompiled CXF with some custom debug prints) and no
device is found. Shutting down
the proxy everything works as expected.
I'd likely need to at least see what the exceptions are. Ideally, could you
wireshark the probe and responses and see what is coming back.
One thought is that the proxy is sending back a Hello and thus the client is
flipping to managed mode (to use the proxy), but the proxy isn't then sending
any information back or CXF isn't waiting for it and it's getting lost. What
happens if you do a second probe with the same client? In that case, the
probe should ONLY go to the proxy.
What happens if you force the client to use the proxy right up front via the constructor
that takes the address? Use an address like
"soap.udp://proxy.hostname:3702". In that case, the probe should just go to
the proxy immediately. Does the proxy return the right information?
Not sure what else to suggest at this point. Would really need to the packets
and stack traces.
Dan
It seems a similar, not to say equal, issue was opened on CXF Jira with number
4955 that should be fixed now,
but this is not my case. Since in issue description the WS-Discover version
mentioned is 1.1, could it be that
the issue is still present when setting version 1.0, as requested by ONVIF
specs?
Any help is very appreciated, thanks in advance,
Matteo
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