Hi
On 24/01/13 23:20, Joe Lin wrote:
Hi,
We are on cxf 2.6.1 and this error happens intermittently on one of the
rest call that we exposed through cxf. Any help will be great:
First time I'm seeing it, can you give me a favor and register custom
WebApplicationException mapper and print the stack trace or register
org.apache.cxf.jaxrs.impl.WebApplicationExceptionMapper and set its
"printStackTrace" property to true, I'd like to see where the exception
is coming from. Neither JSONProvider nor Jettison keeps any global state
so I'm wondering what might be going wrong.
Here is a theory: the custom object which is being serialized has its
(collection) properties modified concurrently by the application code,
can it be the case ?
Thanks, Sergey
Jan 23, 2013 8:18:55 AM
org.apache.cxf.jaxrs.impl.WebApplicationExceptionMapper toResponse
FINE: WebApplicationException has been caught, status: 500, message:
exception cause class: java.util.ConcurrentModificationException
javax.ws.rs.WebApplicationException:
java.util.ConcurrentModificationException
at
org.apache.cxf.jaxrs.provider.json.JSONProvider.writeTo(JSONProvider.java:365)
at
org.apache.cxf.jaxrs.interceptor.JAXRSOutInterceptor.writeTo(JAXRSOutInterceptor.java:297)
at
org.apache.cxf.jaxrs.interceptor.JAXRSOutInterceptor.serializeMessage(JAXRSOutInterceptor.java:257)
at
org.apache.cxf.jaxrs.interceptor.JAXRSOutInterceptor.processResponse(JAXRSOutInterceptor.java:145)
at
org.apache.cxf.jaxrs.interceptor.JAXRSOutInterceptor.handleMessage(JAXRSOutInterceptor.java:84)
at
org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:262)
at
org.apache.cxf.interceptor.OutgoingChainInterceptor.handleMessage(OutgoingChainInterceptor.java:77)
at
org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:262)
at
org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:122)
at
org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:211)
at
org.apache.cxf.transport.servlet.ServletController.invokeDestination(ServletController.java:213)
at
org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:154)
at
org.apache.cxf.transport.servlet.CXFNonSpringServlet.invoke(CXFNonSpringServlet.java:129)
at
org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:187)
at
org.apache.cxf.transport.servlet.AbstractHTTPServlet.doGet(AbstractHTTPServlet.java:115)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
at
org.apache.cxf.transport.servlet.AbstractHTTPServlet.service(AbstractHTTPServlet.java:166)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1002)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585)
at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.util.ConcurrentModificationException
at java.util.ArrayList$Itr.checkForComodification(Unknown Source)
at java.util.ArrayList$Itr.next(Unknown Source)
at
com.sun.xml.bind.v2.runtime.reflect.Lister$CollectionLister$1.next(Lister.java:288)
at
com.sun.xml.bind.v2.runtime.property.ArrayElementProperty.serializeListBody(ArrayElementProperty.java:139)
at
com.sun.xml.bind.v2.runtime.property.ArrayERProperty.serializeBody(ArrayERProperty.java:159)
at
com.sun.xml.bind.v2.runtime.ClassBeanInfoImpl.serializeBody(ClassBeanInfoImpl.java:358)
at
com.sun.xml.bind.v2.runtime.XMLSerializer.childAsSoleContent(XMLSerializer.java:593)
at
com.sun.xml.bind.v2.runtime.ClassBeanInfoImpl.serializeRoot(ClassBeanInfoImpl.java:340)
at
com.sun.xml.bind.v2.runtime.XMLSerializer.childAsRoot(XMLSerializer.java:494)
at
com.sun.xml.bind.v2.runtime.MarshallerImpl.write(MarshallerImpl.java:323)
at
com.sun.xml.bind.v2.runtime.MarshallerImpl.marshal(MarshallerImpl.java:178)
at
org.apache.cxf.jaxrs.provider.json.JSONProvider.marshal(JSONProvider.java:464)
at
org.apache.cxf.jaxrs.provider.json.JSONProvider.marshal(JSONProvider.java:512)
at
org.apache.cxf.jaxrs.provider.json.JSONProvider.writeTo(JSONProvider.java:357)
... 32 more
--
Sergey Beryozkin
Talend Community Coders
http://coders.talend.com/
Blog: http://sberyozkin.blogspot.com
