Major Description
Exceptions raised in the Axis2 modules will eventually block the entire application when the CommonsHTTPTransportSender is used in combination with the (MultiThreaded)HttpConnectionManager.
The Axis2FlexibleMEPClient (or more specific the DynamicAxisOperation) doesn't invoke the cleanup of the TransportSender when an exception occurs and thus doesn't return the HttpConnection to the HttpConnectionManager. Eventually the HttpConnectionManager reaches it's maximum number of connections and blocks when new connections are requested, which in time blocks the application.