I'm using Apache CXF to send soap message. in specific case, i have to send a soap message gzip compressed. Using log4j, i printed detailed info. would you let me know how i can know the message is gzip compressed and transfered to server. thanks in advance. Below is my java code for gzip and log info. java code Client cxfClient = ClientProxy.getClient(port); /** Logging Interceptor */ cxfClient.getInInterceptors().add(new GZIPInInterceptor()); cxfClient.getOutInterceptors().add(new GZIPOutInterceptor()); log info 20120814 18:56:15,351 DEBUG Interceptors contributed by bus: [] 20120814 18:56:15,351 DEBUG Interceptors contributed by client: [org.apache.cxf.transport.http.gzip.GZIPOutInterceptor@1682a53] 20120814 18:56:15,351 DEBUG Interceptors contributed by endpoint: [org.apache.cxf.interceptor.MessageSenderInterceptor@1b2d7df, org.apache.cxf.jaxws.interceptors.SwAOutInterceptor@7a9224, org.apache.cxf.jaxws.interceptors.WrapperClassOutInterceptor@110b640, org.apache.cxf.jaxws.interceptors.HolderOutInterceptor@2d59a3] 20120814 18:56:15,351 DEBUG Interceptors contributed by binding: [org.apache.cxf.interceptor.AttachmentOutInterceptor@158015a, org.apache.cxf.interceptor.StaxOutInterceptor@c0c8b5, org.apache.cxf.binding.soap.interceptor.SoapHeaderOutFilterInterceptor@b914b3, org.apache.cxf.interceptor.BareOutInterceptor@fdfc58, org.apache.cxf.binding.soap.interceptor.SoapPreProtocolOutInterceptor@c22a3b, org.apache.cxf.binding.soap.interceptor.SoapOutInterceptor@1629e71] 20120814 18:56:15,351 DEBUG Interceptors contributed by databinding: [] 20120814 18:56:15,357 DEBUG Adding interceptor org.apache.cxf.transport.http.gzip.GZIPOutInterceptor@1682a53 to phase prepare-send 20120814 18:56:15,358 DEBUG Adding interceptor org.apache.cxf.interceptor.MessageSenderInterceptor@1b2d7df to phase prepare-send 20120814 18:56:15,358 DEBUG Adding interceptor org.apache.cxf.jaxws.interceptors.SwAOutInterceptor@7a9224 to phase pre-logical 20120814 18:56:15,358 DEBUG Adding interceptor org.apache.cxf.jaxws.interceptors.WrapperClassOutInterceptor@110b640 to phase pre-logical 20120814 18:56:15,358 DEBUG Adding interceptor org.apache.cxf.jaxws.interceptors.HolderOutInterceptor@2d59a3 to phase pre-logical 20120814 18:56:15,358 DEBUG Adding interceptor org.apache.cxf.interceptor.AttachmentOutInterceptor@158015a to phase pre-stream 20120814 18:56:15,358 DEBUG Adding interceptor org.apache.cxf.interceptor.StaxOutInterceptor@c0c8b5 to phase pre-stream 20120814 18:56:15,358 DEBUG Adding interceptor org.apache.cxf.binding.soap.interceptor.SoapHeaderOutFilterInterceptor@b914b3 to phase pre-logical 20120814 18:56:15,358 DEBUG Adding interceptor org.apache.cxf.interceptor.BareOutInterceptor@fdfc58 to phase marshal 20120814 18:56:15,358 DEBUG Adding interceptor org.apache.cxf.binding.soap.interceptor.SoapPreProtocolOutInterceptor@c22a3b to phase post-logical 20120814 18:56:15,359 DEBUG Adding interceptor org.apache.cxf.binding.soap.interceptor.SoapOutInterceptor@1629e71 to phase write 20120814 18:56:15,360 DEBUG Chain org.apache.cxf.phase.PhaseInterceptorChain@31688f was created. Current flow: pre-logical [HolderOutInterceptor, SwAOutInterceptor, WrapperClassOutInterceptor, SoapHeaderOutFilterInterceptor] post-logical [SoapPreProtocolOutInterceptor] prepare-send [MessageSenderInterceptor, GZIPOutInterceptor] pre-stream [AttachmentOutInterceptor, StaxOutInterceptor] write [SoapOutInterceptor] marshal [BareOutInterceptor] 20120814 18:56:15,361 DEBUG Invoking handleMessage on interceptor org.apache.cxf.jaxws.interceptors.HolderOutInterceptor@2d59a3 20120814 18:56:15,361 DEBUG op: [OperationInfo: {https://asp.cyberbooking.co.kr/TopasApiSvc/services}getAirAvail] 20120814 18:56:15,361 DEBUG op.hasOutput(): true 20120814 18:56:15,361 DEBUG op.getOutput().size(): 2 20120814 18:56:15,361 DEBUG Invoking handleMessage on interceptor org.apache.cxf.jaxws.interceptors.SwAOutInterceptor@7a9224 20120814 18:56:15,364 DEBUG Invoking handleMessage on interceptor org.apache.cxf.jaxws.interceptors.WrapperClassOutInterceptor@110b640 20120814 18:56:15,364 DEBUG Invoking handleMessage on interceptor org.apache.cxf.binding.soap.interceptor.SoapHeaderOutFilterInterceptor@b914b3 20120814 18:56:15,365 DEBUG Invoking handleMessage on interceptor org.apache.cxf.binding.soap.interceptor.SoapPreProtocolOutInterceptor@c22a3b 20120814 18:56:15,365 DEBUG Invoking handleMessage on interceptor org.apache.cxf.interceptor.MessageSenderInterceptor@1b2d7df 20120814 18:56:15,365 DEBUG Adding interceptor org.apache.cxf.interceptor.MessageSenderInterceptor$MessageSenderEndingInterceptor@dc9065 to phase prepare-send-ending 20120814 18:56:15,366 DEBUG Chain org.apache.cxf.phase.PhaseInterceptorChain@31688f was modified. Current flow: pre-logical [HolderOutInterceptor, SwAOutInterceptor, WrapperClassOutInterceptor, SoapHeaderOutFilterInterceptor] post-logical [SoapPreProtocolOutInterceptor] prepare-send [MessageSenderInterceptor, GZIPOutInterceptor] pre-stream [AttachmentOutInterceptor, StaxOutInterceptor] write [SoapOutInterceptor] marshal [BareOutInterceptor] prepare-send-ending [MessageSenderEndingInterceptor] 20120814 18:56:15,366 DEBUG Invoking handleMessage on interceptor org.apache.cxf.transport.http.gzip.GZIPOutInterceptor@1682a53 20120814 18:56:15,366 DEBUG Requestor role, so gzip enabled 20120814 18:56:15,366 DEBUG gzip permitted: YES 20120814 18:56:15,367 DEBUG Invoking handleMessage on interceptor org.apache.cxf.interceptor.AttachmentOutInterceptor@158015a 20120814 18:56:15,367 DEBUG Invoking handleMessage on interceptor org.apache.cxf.interceptor.StaxOutInterceptor@c0c8b5 20120814 18:56:15,370 DEBUG Adding interceptor org.apache.cxf.interceptor.StaxOutInterceptor$StaxOutEndingInterceptor@1f488f1 to phase pre-stream-ending 20120814 18:56:15,370 DEBUG Chain org.apache.cxf.phase.PhaseInterceptorChain@31688f was modified. Current flow: pre-logical [HolderOutInterceptor, SwAOutInterceptor, WrapperClassOutInterceptor, SoapHeaderOutFilterInterceptor] post-logical [SoapPreProtocolOutInterceptor] prepare-send [MessageSenderInterceptor, GZIPOutInterceptor] pre-stream [AttachmentOutInterceptor, StaxOutInterceptor] write [SoapOutInterceptor] marshal [BareOutInterceptor] pre-stream-ending [StaxOutEndingInterceptor] prepare-send-ending [MessageSenderEndingInterceptor] 20120814 18:56:15,370 DEBUG Invoking handleMessage on interceptor org.apache.cxf.binding.soap.interceptor.SoapOutInterceptor@1629e71 20120814 18:56:15,383 DEBUG Adding interceptor org.apache.cxf.binding.soap.interceptor.SoapOutInterceptor$SoapOutEndingInterceptor@1ce663c to phase write-ending 20120814 18:56:15,384 DEBUG Chain org.apache.cxf.phase.PhaseInterceptorChain@31688f was modified. Current flow: pre-logical [HolderOutInterceptor, SwAOutInterceptor, WrapperClassOutInterceptor, SoapHeaderOutFilterInterceptor] post-logical [SoapPreProtocolOutInterceptor] prepare-send [MessageSenderInterceptor, GZIPOutInterceptor] pre-stream [AttachmentOutInterceptor, StaxOutInterceptor] write [SoapOutInterceptor] marshal [BareOutInterceptor] write-ending [SoapOutEndingInterceptor] pre-stream-ending [StaxOutEndingInterceptor] prepare-send-ending [MessageSenderEndingInterceptor] 20120814 18:56:15,384 DEBUG Invoking handleMessage on interceptor org.apache.cxf.interceptor.BareOutInterceptor@fdfc58 20120814 18:56:15,387 DEBUG Compressing message. 20120814 18:56:15,388 DEBUG Sending POST Message with Headers to http://test.co.kr:80/###/###/###Conduit :{https://test.co.kr/###/####}###.http-conduit Content-Type: text/xml; charset=UTF-8 20120814 18:56:15,388 DEBUG SOAPAction: "getAirAvail" 20120814 18:56:15,388 DEBUG Accept: */* 20120814 18:56:15,388 DEBUG Accept-Encoding: gzip;q=1.0, identity; q=0.5, *;q=0 20120814 18:56:15,388 DEBUG Content-Encoding: gzip 20120814 18:56:15,388 DEBUG No Trust Decider for Conduit '{https://test.co.kr/###/###}###.http-conduit'. An afirmative Trust Decision is assumed. 20120814 18:56:15,394 DEBUG Invoking handleMessage on interceptor org.apache.cxf.binding.soap.interceptor.SoapOutInterceptor$SoapOutEndingInterceptor@1ce663c 20120814 18:56:15,394 DEBUG Invoking handleMessage on interceptor org.apache.cxf.interceptor.StaxOutInterceptor$StaxOutEndingInterceptor@1f488f1 20120814 18:56:15,394 DEBUG Invoking handleMessage on interceptor org.apache.cxf.interceptor.MessageSenderInterceptor$MessageSenderEndingInterceptor@dc9065 20120814 18:56:15,459 DEBUG Response Code: 200 Conduit: {https://test.co.kr/###/###}###.http-conduit 20120814 18:56:15,459 DEBUG Content length: 11034 20120814 18:56:15,459 DEBUG Header fields: null: [HTTP/1.1 200 OK] Content-Language: [ko-KR] Date: [Tue, 14 Aug 2012 09:56:15 GMT] Content-Length: [11034] P3P: [CP='CAO PSA CONi OTR OUR DEM ONL'] Expires: [Thu, 01 Dec 1994 16:00:00 GMT] Keep-Alive: [timeout=10, max=100] Set-Cookie: [WMONID=mL6rq_Irpa_; Expires=Wed, 14 Aug 2013 09:56:15 GMT; Path=/] Connection: [Keep-Alive] Content-Type: [text/xml; charset=utf-8] Server: [IBM_HTTP_Server] Cache-Control: [no-cache="set-cookie, set-cookie2"]