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From "Mario Emmenlauer (Jira)" <j...@apache.org>
Subject [jira] [Closed] (THRIFT-4819) All exceptions are TException
Date Fri, 24 Apr 2020 09:07:00 GMT

     [ https://issues.apache.org/jira/browse/THRIFT-4819?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mario Emmenlauer closed THRIFT-4819.
------------------------------------
    Resolution: Cannot Reproduce

I think this may be related to dynamic linking of Thrift, but I can not reproduce it right
now. Closing as "Cannot reproduce".

> All exceptions are TException
> -----------------------------
>
>                 Key: THRIFT-4819
>                 URL: https://issues.apache.org/jira/browse/THRIFT-4819
>             Project: Thrift
>          Issue Type: Bug
>          Components: C++ - Library
>    Affects Versions: 0.13.0
>            Reporter: Mario Emmenlauer
>            Priority: Major
>
> In recent versions of thrift we can not catch exceptions based on their IDL type anymore.
I'm not sure if we broke something, but the code is sufficiently simple to suggest a bug in
thrift. So here is what we have:
>  # A method with signature that can throw a specific exception, i.e. UserException
>  # The C++ server throws this exception whenever the method is called
>  # The C++ client tries to catch this exception but it passes through
> The client can catch the exception as `TException` or as `std::exception` and we can
see from the printed message `vException.what()` that its a `UserException`. But catch does
not deduce the type correctly.
> Here is the part of the catch that does not work:
> {code}
> try {
>     vClient->SendRequest();
> } catch (const MyService::UserException& vEx) {
>     // Why is this not caught, when the server throws MyService::UserException?
>     std::cerr << "Caught a UserException, message " << vEx.what() <<
std::endl;
> } catch (const std::exception& vEx) {
>     // Why is this one called instead?
>     std::cerr << "Caught a std::exception, message " << vEx.what() <<
std::endl;
> }
> {code}



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