Hi experts,

I'm using commons-httpclient-3.1 for my project purposes.

There are infrastructure and client layers in the project.
Infrastructure uses http client to talk to the server(over ssl), while client 
layer performing requests to third party sites(both http\https).

And the requirement is that the http client that is communicating to server should determine its 
own Protocol instance for "https" scheme(with its own socket factory), while the one from 
the client layer needs to introduce another Protocol instance for the _same_ "https" 
scheme(with socket factory configured to auto-accept remote certificates for example).

So, current problem is that it can exist only one Protocol instance for the 
same scheme type. And now I'm facing with issue when infra layer stops 
communicating with server once the client layer has established https 
connection to some third party site.

The exception I keep getting is java.net.SocketException: Already bound
at java.net.Socket.bind(Socket.java:614)
at sun.security.ssl.BaseSSLSocketImpl.bind(BaseSSLSocketImpl.java:114)
at sun.security.ssl.SSLSocketImpl.bind(SSLSocketImpl.java:65)

And the funny thing that this exception comes from socket factory defined from 
the client layer, while the call is done from the infra layer.

So my questions are:
1) Is possibility to cover described scenario with httpclient of 3.1 version? 
Perhaps it is possible to specify Protocol explicitly for the client so it will 
be used while executing requests? I do know about HostConfiguration class, but 
from the source code I see that protocol scheme is taken from the URI itself if 
it is of absolute type, so the passed hostConfiguration is changed internally.


2)I still doubting that described issue is the root cause of the "Already 
bound" SocketException. Does anybody have any other version of what is happening?

Thanks,
Eugene







Eugen Kondrashev.

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