Critical Description
Hi,
In CXF 2.4, HTTP Conduit has a new debug log as below. However, this logging message can cause HTTPConduit reads the response before it completes sending request, and it results in an IOException in the client side.
The reason is that the method connection.getContentType() will trigger httpconnect to send current data to the HttpServer and want the server to return the response, so the server thinks the client complete the whole request and the server just reply nothing and closes the http connection.
Code in HttpConduit.java
protected void onFirstWrite() throws IOException { ... if (LOG.isLoggable(Level.FINE)) { LOG.fine("Sending " + connection.getRequestMethod() + " Message with Headers to " + connection.getURL() + " Conduit :" + conduitName + "\nContent-Type: " + connection.getContentType() + "\n"); } }
To reproduce the issue: please create a simple web service in cxf 2.4 and enable its debug log, and then use a generated proxy client to call the http service, then you can see the error below.
David
Exception:
Caused by: java.io.IOException: IOException invoking http://localhost:7777/Hello: Stream is closed
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.mapException(HTTPConduit.java:1385)
at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.close(HTTPConduit.java:1370)
at org.apache.cxf.transport.AbstractConduit.close(AbstractConduit.java:56)
at org.apache.cxf.transport.http.HTTPConduit.close(HTTPConduit.java:614)
at org.apache.cxf.interceptor.MessageSenderInterceptor$MessageSenderEndingInterceptor.handleMessage(MessageSenderInterceptor.java:62)
at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:263)
at org.apache.cxf.endpoint.ClientImpl.doInvoke(ClientImpl.java:484)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:414)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:317)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:269)
at org.apache.cxf.frontend.ClientProxy.invokeSync(ClientProxy.java:73)
at org.apache.cxf.jaxws.JaxWsClientProxy.invoke(JaxWsClientProxy.java:124)
... 2 more