#16 Buggy error handling in XmlRpcProxy

[Michael Wyraz]

When i use an xml rpc proxy and on the server-side an
exception is thrown, the rpc client fails to handle the
response. this is because a hash map is returned but a
different object (depending of the method's return
type) is expected.

solution: the proxy must check if the result was an
error and if yes, it should throw an exception.

[Greger Ohlson]

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Correct. Errors on the server side should propagate as
XmlRpcExceptions on the client side.