Caused by: org.apache.cxf.staxutils.DepthExceededStaxException: reach the innerElementCountThreshold:50000
at org.apache.cxf.staxutils.StaxUtils.copy(StaxUtils.java:726)
at org.apache.cxf.binding.soap.saaj.SAAJInInterceptor.handleMessage(SAAJInInterceptor.java:223)
at org.apache.cxf.jaxws.handler.soap.SOAPMessageContextImpl.getMessage(SOAPMessageContextImpl.java:78)
at org.apache.cxf.jaxws.handler.soap.SOAPHandlerInterceptor.createProtocolMessageContext(SOAPHandlerInterceptor.java:257)
at org.apache.cxf.jaxws.handler.soap.SOAPHandlerInterceptor.handleMessageInternal(SOAPHandlerInterceptor.java:161)
at org.apache.cxf.jaxws.handler.soap.SOAPHandlerInterceptor.handleMessage(SOAPHandlerInterceptor.java:124)
at org.apache.cxf.jaxws.handler.soap.SOAPHandlerInterceptor.handleMessage(SOAPHandlerInterceptor.java:71)
at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:272)
at org.apache.cxf.endpoint.ClientImpl.onMessage(ClientImpl.java:845)
at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.handleResponseInternal(HTTPConduit.java:1624)

This happens because the SAAJInInterceptor invokes StaxUtils.copy() with the value of the fourth argument as true, which means StaxUtils uses its static properties to check innerElementLevelThreshold and innerElementCountThreshold. If the XMLStreamReader passed in to the method has custom values for these properties, they are ignored.

CXF Upstream Issue : https://issues.apache.org/jira/browse/CXF-6173