Hi, I'm encounting the same problem described in this JIRA issue (http://issues.apache.org/jira/browse/CXF-1569). Looking at the 2.1 branch, I don't think the fix is applied to 2.1. Can someone help me with this problem?
JAXBDataBinding.java in 2.1: http://fisheye6.atlassian.com/browse/cxf/tags/cxf-2.1/rt/databinding/jaxb/src/main/java/org/apache/cxf/jaxb/JAXBDataBinding.java?r=651669#l448 Exception: java.util.ConcurrentModificationException at java.util.HashMap$HashIterator.nextEntry(HashMap.java:841) at java.util.HashMap$KeyIterator.next(HashMap.java:877) at org.apache.cxf.common.util.WeakIdentityHashMap.keySet(WeakIdentityHashMap.java:94) at org.apache.cxf.common.util.CacheMap.updateMainDataMap(CacheMap.java:55) at org.apache.cxf.common.util.CacheMap.get(CacheMap.java:84) at org.apache.cxf.jaxb.JAXBDataBinding.createJAXBContext(JAXBDataBinding.java:448) at org.apache.cxf.jaxb.JAXBDataBinding.initialize(JAXBDataBinding.java:287) at org.apache.cxf.service.factory.ReflectionServiceFactoryBean.buildServiceFromClass(ReflectionServiceFactoryBean.java:343) at org.apache.cxf.jaxws.support.JaxWsServiceFactoryBean.buildServiceFromClass(JaxWsServiceFactoryBean.java:512) at org.apache.cxf.service.factory.ReflectionServiceFactoryBean.initializeerviceModel(ReflectionServiceFactoryBean.java:394) at org.apache.cxf.service.factory.ReflectionServiceFactoryBean.create(Refl ectionServiceFactoryBean.java:180) at org.apache.cxf.jaxws.support.JaxWsServiceFactoryBean.create(JaxWsServiceFactoryBean.java:163) at org.apache.cxf.frontend.AbstractWSDLBasedEndpointFactory.createEndpoint(AbstractWSDLBasedEndpointFactory.java:79) at org.apache.cxf.frontend.ClientFactoryBean.create(ClientFactoryBean.java:51) at org.apache.cxf.frontend.ClientProxyFactoryBean.create(ClientProxyFactoryBean.java:97) at org.apache.cxf.jaxws.JaxWsProxyFactoryBean.create(JaxWsProxyFactoryBean.java:89) at org.apache.cxf.jaxws.ServiceImpl.createPort(ServiceImpl.java:369) at org.apache.cxf.jaxws.ServiceImpl.getPort(ServiceImpl.java:247) at org.apache.cxf.jaxws.ServiceImpl.getPort(ServiceImpl.java:234) at javax.xml.ws.Service.getPort(Service.java:92) Thanks in advance, Frank