Hi
When CXF JAX-RS injects thread-local proxies into providers/resource
classes it keeps field and method proxy maps on the bus. I recall there
was a problem in one of the complex setups where there were many
endpoints with multiple Jackson instances (as opposed to a single
instance shared between the endpoints) where somehow the provider whose
thread local proxy was reset depending on the order of the provider
initialization.
I vaguely recall the side-effect was caused by the fact there were
different bus instances involved too, this case is now tested in this
context:
https://github.com/apache/cxf/blob/master/systests/jaxrs/src/test/resources/jaxrs_jackson_provider/WEB-INF/beans.xml
(one of the endpoints has a custom bus)
Perhaps when a client is set up in a complex, possibly multi-threaded
environment some side-effects with setting tl proxies are possible.
Example if it is a single/default bus that is shared between all the
clients then if we have multiple threads then they affect the th maps
kept on the bus.
Please experiment with trying to have each client instance have its own
Bus ? (You can create a unique bus with BusFactory and then set it on
JAXRSClientFactoryBean before creating a proxy) - if that helps than you
can limit such a setup to a test env only unless the actual production
setup is also multi-threaded
HTH, Sergey
On 02/09/15 11:33, Veit Guna wrote:
Hi.
I'm using CXF 3.0.4 in client proxy mode, using my server REST interfaces.
In addition I'm using the httpclient cxf module to workaround earlier problems
with concurrency
under load (as suggested by Sergey in a post some months ago here on the
mailing list).
For Multipart handling I'm using the jersey MultiPart JAX-RS MessageBodyWriter
on the server
as well as on the client.
Under normal circumstances all goes well. But sometimes, especially on the
startup-phase of the load test,
the CXF client proxy dies with the exception below during a Multipart POST. Any
clue what might cause this?
0f5ba696ffe4 fns-service.log Caused by: org.apache.cxf.interceptor.Fault: No
message body writer has been found for class
org.glassfish.jersey.media.multipart.MultiPart, ContentType: multipart/mixed
0f5ba696ffe4 fns-service.log at
org.apache.cxf.jaxrs.client.ClientProxyImpl$BodyWriter.doWriteBody(ClientProxyImpl.java:814)
0f5ba696ffe4 fns-service.log at
org.apache.cxf.jaxrs.client.AbstractClient$AbstractBodyWriter.handleMessage(AbstractClient.java:1042)
0f5ba696ffe4 fns-service.log at
org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:307)
0f5ba696ffe4 fns-service.log at
org.apache.cxf.jaxrs.client.AbstractClient.doRunInterceptorChain(AbstractClient.java:624)
0f5ba696ffe4 fns-service.log at
org.apache.cxf.jaxrs.client.ClientProxyImpl.doChainedInvocation(ClientProxyImpl.java:674)
0f5ba696ffe4 fns-service.log at
org.apache.cxf.jaxrs.client.ClientProxyImpl.invoke(ClientProxyImpl.java:224)
0f5ba696ffe4 fns-service.log at com.sun.proxy.$Proxy484.create(Unknown
Source)
0f5ba696ffe4 fns-service.log at my.class.doSomething(MyClass.java:383)
0f5ba696ffe4 fns-service.log ... 54 more
0f5ba696ffe4 fns-service.log Caused by: javax.ws.rs.ProcessingException: No
message body writer has been found for class
org.glassfish.jersey.media.multipart.MultiPart, ContentType: multipart/mixed
0f5ba696ffe4 fns-service.log at
org.apache.cxf.jaxrs.client.AbstractClient.reportMessageHandlerProblem(AbstractClient.java:741)
0f5ba696ffe4 fns-service.log at
org.apache.cxf.jaxrs.client.AbstractClient.writeBody(AbstractClient.java:470)
0f5ba696ffe4 fns-service.log at
org.apache.cxf.jaxrs.client.ClientProxyImpl$BodyWriter.doWriteBody(ClientProxyImpl.java:804)
0f5ba696ffe4 fns-service.log ... 62 more
0f5ba696ffe4 fns-service.log Caused by: java.lang.NullPointerException
0f5ba696ffe4 fns-service.log at
org.apache.cxf.jaxrs.impl.tl.ThreadLocalProviders.getMessageBodyWriter(ThreadLocalProviders.java:46)
0f5ba696ffe4 fns-service.log at
org.glassfish.jersey.media.multipart.internal.MultiPartWriter.writeTo(MultiPartWriter.java:222)
0f5ba696ffe4 fns-service.log at
org.glassfish.jersey.media.multipart.internal.MultiPartWriter.writeTo(MultiPartWriter.java:79)
0f5ba696ffe4 fns-service.log at
org.apache.cxf.jaxrs.utils.JAXRSUtils.writeMessageBody(JAXRSUtils.java:1379)
0f5ba696ffe4 fns-service.log at
org.apache.cxf.jaxrs.client.AbstractClient.writeBody(AbstractClient.java:456)
0f5ba696ffe4 fns-service.log ... 63 more
--
Sergey Beryozkin
Talend Community Coders
http://coders.talend.com/
