Details
Major Description
The example is based on the camel-example-cxf-tomcat.
Components:
1. Have a CXF rest web service configured in camel-config.
2. Have a Camel CXF client cxf:rsClient used to call web service from point 1.
3. Have a Camel CXF server cxf:rsServer which acts as a proxy for service from point 1 by passing inbount message towards client from point 2.
Flow:
1. Service 3 receives message
2. Message is passed to component 2 (Camel cxf client)
3. Component 2 invokes service 1
4. Response received is transformed using a custom processor
Problem:
When having multiple requests in parallel, following error appears (CxfRsProducer does not seem to be thread safe):
java.lang.RuntimeException: java.util.ConcurrentModificationException at org.apache.cxf.jaxrs.client.JAXRSClientFactoryBean.createWebClient(JAXRSClientFactoryBean.java:217)[cxf-rt-frontend-jaxrs-2.6.1.jar:2.6.1] at org.apache.camel.component.cxf.jaxrs.CxfRsProducer.invokeHttpClient(CxfRsProducer.java:100)[camel-cxf-2.10.0.jar:2.10.0] at org.apache.camel.component.cxf.jaxrs.CxfRsProducer.process(CxfRsProducer.java:87)[camel-cxf-2.10.0.jar:2.10.0] at org.apache.camel.util.AsyncProcessorConverterHelper$ProcessorToAsyncProcessorBridge.process(AsyncProcessorConverterHelper.java:61)[camel-core-2.10.0.jar:2.10.0] at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)[camel-core-2.10.0.jar:2.10.0] at org.apache.camel.processor.SendProcessor$2.doInAsyncProducer(SendProcessor.java:120)[camel-core-2.10.0.jar:2.10.0] at org.apache.camel.impl.ProducerCache.doInAsyncProducer(ProducerCache.java:292)[camel-core-2.10.0.jar:2.10.0] at org.apache.camel.processor.SendProcessor.process(SendProcessor.java:115)[camel-core-2.10.0.jar:2.10.0] at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)[camel-core-2.10.0.jar:2.10.0] at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:99)[camel-core-2.10.0.jar:2.10.0] at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)[camel-core-2.10.0.jar:2.10.0] at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:73)[camel-core-2.10.0.jar:2.10.0] at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)[camel-core-2.10.0.jar:2.10.0] at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:99)[camel-core-2.10.0.jar:2.10.0] at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)[camel-core-2.10.0.jar:2.10.0] at org.apache.camel.processor.interceptor.TraceInterceptor.process(TraceInterceptor.java:91)[camel-core-2.10.0.jar:2.10.0] at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)[camel-core-2.10.0.jar:2.10.0] at org.apache.camel.processor.RedeliveryErrorHandler.processErrorHandler(RedeliveryErrorHandler.java:330)[camel-core-2.10.0.jar:2.10.0] at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:220)[camel-core-2.10.0.jar:2.10.0] at org.apache.camel.processor.RouteContextProcessor.processNext(RouteContextProcessor.java:45)[camel-core-2.10.0.jar:2.10.0] at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)[camel-core-2.10.0.jar:2.10.0] at org.apache.camel.processor.interceptor.DefaultChannel.process(DefaultChannel.java:303)[camel-core-2.10.0.jar:2.10.0] at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)[camel-core-2.10.0.jar:2.10.0] at org.apache.camel.processor.Pipeline.process(Pipeline.java:117)[camel-core-2.10.0.jar:2.10.0] at org.apache.camel.processor.Pipeline.process(Pipeline.java:80)[camel-core-2.10.0.jar:2.10.0] at org.apache.camel.processor.RouteContextProcessor.processNext(RouteContextProcessor.java:45)[camel-core-2.10.0.jar:2.10.0] at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)[camel-core-2.10.0.jar:2.10.0] at org.apache.camel.processor.UnitOfWorkProcessor.processAsync(UnitOfWorkProcessor.java:150)[camel-core-2.10.0.jar:2.10.0] at org.apache.camel.processor.UnitOfWorkProcessor.process(UnitOfWorkProcessor.java:117)[camel-core-2.10.0.jar:2.10.0] at org.apache.camel.processor.RouteInflightRepositoryProcessor.processNext(RouteInflightRepositoryProcessor.java:48)[camel-core-2.10.0.jar:2.10.0] at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)[camel-core-2.10.0.jar:2.10.0] at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)[camel-core-2.10.0.jar:2.10.0] at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:99)[camel-core-2.10.0.jar:2.10.0] at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)[camel-core-2.10.0.jar:2.10.0] at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:73)[camel-core-2.10.0.jar:2.10.0] at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:99)[camel-core-2.10.0.jar:2.10.0] at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:86)[camel-core-2.10.0.jar:2.10.0] at org.apache.camel.component.cxf.jaxrs.CxfRsInvoker.syncInvoke(CxfRsInvoker.java:122)[camel-cxf-2.10.0.jar:2.10.0] at org.apache.camel.component.cxf.jaxrs.CxfRsInvoker.performInvocation(CxfRsInvoker.java:60)[camel-cxf-2.10.0.jar:2.10.0] at org.apache.cxf.service.invoker.AbstractInvoker.invoke(AbstractInvoker.java:96)[cxf-api-2.6.1.jar:2.6.1] at org.apache.cxf.jaxrs.JAXRSInvoker.invoke(JAXRSInvoker.java:167)[cxf-rt-frontend-jaxrs-2.6.1.jar:2.6.1] at org.apache.cxf.jaxrs.JAXRSInvoker.invoke(JAXRSInvoker.java:94)[cxf-rt-frontend-jaxrs-2.6.1.jar:2.6.1] at org.apache.cxf.interceptor.ServiceInvokerInterceptor$1.run(ServiceInvokerInterceptor.java:58)[cxf-api-2.6.1.jar:2.6.1] at org.apache.cxf.interceptor.ServiceInvokerInterceptor.handleMessage(ServiceInvokerInterceptor.java:94)[cxf-api-2.6.1.jar:2.6.1] at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:262)[cxf-api-2.6.1.jar:2.6.1] at org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:122)[cxf-api-2.6.1.jar:2.6.1] at org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:211)[cxf-rt-transports-http-2.6.1.jar:2.6.1] at org.apache.cxf.transport.servlet.ServletController.invokeDestination(ServletController.java:213)[cxf-rt-transports-http-2.6.1.jar:2.6.1] at org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:154)[cxf-rt-transports-http-2.6.1.jar:2.6.1] at org.apache.cxf.transport.servlet.CXFNonSpringServlet.invoke(CXFNonSpringServlet.java:129)[cxf-rt-transports-http-2.6.1.jar:2.6.1] at org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:187)[cxf-rt-transports-http-2.6.1.jar:2.6.1] at org.apache.cxf.transport.servlet.AbstractHTTPServlet.doGet(AbstractHTTPServlet.java:115)[cxf-rt-transports-http-2.6.1.jar:2.6.1] at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)[servlet-api.jar:] at org.apache.cxf.transport.servlet.AbstractHTTPServlet.service(AbstractHTTPServlet.java:166)[cxf-rt-transports-http-2.6.1.jar:2.6.1] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)[catalina.jar:6.0.35] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)[catalina.jar:6.0.35] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)[catalina.jar:6.0.35] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)[catalina.jar:6.0.35] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)[catalina.jar:6.0.35] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)[catalina.jar:6.0.35] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)[catalina.jar:6.0.35] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)[catalina.jar:6.0.35] at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:877)[tomcat-coyote.jar:6.0.35] at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:594)[tomcat-coyote.jar:6.0.35] at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1675)[tomcat-coyote.jar:6.0.35] at java.lang.Thread.run(Thread.java:662)[:1.6.0_25]
Whole project is attached, including Jmeter JMX (which is under \camel-example-cxf-tomcat\jmeter\ folder from the zip file).