Bruno created CXF-8923:
--------------------------
Summary: HTTP/2 - Downgrade protocol with server that doesn't
aceept HTTP/2 under HTTP
Key: CXF-8923
URL: https://issues.apache.org/jira/browse/CXF-8923
Project: CXF
Issue Type: Bug
Affects Versions: 4.0.1
Environment: * Client: Quarkus 3.1.0.Final (Quarkus CFX 2.1.0 - Apache
CXF 4.0.1)
* Server: SAP NetWeaver 7.5
Reporter: Bruno
Attachments: image-2023-09-01-12-01-31-850.png,
image-2023-09-01-12-06-40-208.png
h1. Problem
When trying to consume a SOAP service with a server that doesn't accept HTTP/2
under HTTP, the Apache-CXF agent doesn't downgrade the protocol to resend the
request with HTTP 1.1.
h1. Context
I'm trying to consume a SOAP service. The service is exposed via HTTP. The
problem is that when consuming this service I get the following error:
{code:java}
Caused by: org.apache.cxf.transport.http.HTTPException: HTTP response '403:
(POST
http://productionServer/XISOAPAdapter/MessageServlet?senderParty=&senderService=BS_I4D_FI_100&receiverParty=&receiverService=&interface=SI_SAP_MaestroProveedores_sync_out&interfaceNamespace=http://imm.gub.uy/SAP/MaestroProveedores)
403' when communicating with
http://productionServer/XISOAPAdapter/MessageServlet?senderParty=&senderService=BS_I4D_FI_100&receiverParty=&receiverService=&interface=SI_SAP_MaestroProveedores_sync_out&interfaceNamespace=http://imm.gub.uy/SAP/MaestroProveedores
at
org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.doProcessResponseCode(HTTPConduit.java:1653)
at
org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.handleResponseInternal(HTTPConduit.java:1660)
at
org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.handleResponse(HTTPConduit.java:1602)
at
org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.close(HTTPConduit.java:1396)
at
org.apache.cxf.ext.logging.LoggingOutputStream.postClose(LoggingOutputStream.java:53)
at
org.apache.cxf.io.CachedOutputStream.close(CachedOutputStream.java:228)
at
org.apache.cxf.transport.AbstractConduit.close(AbstractConduit.java:56)
at org.apache.cxf.transport.http.HTTPConduit.close(HTTPConduit.java:696)
at
org.apache.cxf.interceptor.MessageSenderInterceptor$MessageSenderEndingInterceptor.handleMessage(MessageSenderInterceptor.java:63)
at
org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:307)
at org.apache.cxf.endpoint.ClientImpl.doInvoke(ClientImpl.java:528)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:439)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:354)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:312)
at org.apache.cxf.frontend.ClientProxy.invokeSync(ClientProxy.java:96)
at
org.apache.cxf.jaxws.JaxWsClientProxy.invoke(JaxWsClientProxy.java:140)
... 39 more
{code}
Further beyond the error, I used wireshark to access the request and response.
The thing is that Apache is using HTTP/2 and the server doesn't accept this
protocol, so it denys the request as we can see in this image:
!image-2023-09-01-12-01-31-850.png|width=543,height=367!
When I change the client to use HTTP 1.1, it works correctly:
{code:java}
Client client = ClientProxy.getClient(myService);
HTTPConduit http = (HTTPConduit) client.getConduit();
http.getClient().setVersion("1.1");
{code}
!image-2023-09-01-12-06-40-208.png|width=650,height=402!
So, shouldn't it work just out of the box (the client negotating with the
server) without changing the version to HTTP 1.1?
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