Example test/calculator throws error

[verseve]

Hi @tanmaykm,

With Thrift.jl-0.8.4 on Windows the example test\calculator throws the following error listed at the end of this comment (in the file srvr.jl I did change symbol to Symbol). With Thrift.jl-0.7.1 the example works fine, however when an error is forced, this is the output:

┌ Error: exception serving request
│   exception =
│    required field oper not populated
│    Stacktrace:
│      [1] error(s::String)
│        @ Base .\error.jl:33
│      [2] write_container(p::TBinaryProtocol, val::InvalidFloatOperation)

It seems the handling of user-defined exceptions is not working properly ?

We would like to use Thrift.jl where Wflow.jl runs as a server, and run in the same issue with user-defined exceptions.

julia> include("srvr.jl")
[ Info: Precompiling Thrift [8d9c9c80-f77e-5080-9541-c6f69d204e22]
starting julia server...
┌ Error: exception serving request
│   exception =
│    required field ouch not populated
│    Stacktrace:
│      [1] error(s::String)
│        @ Base .\error.jl:33
│      [2] write_container(p::TBinaryProtocol, val::calculate_result_Calc)
│        @ Thrift d:\Thrift.jl-0.8.4\src\base.jl:224
│      [3] write
│        @ d:\Thrift.jl-0.8.4\src\base.jl:216 [inlined]
│      [4] _reply(outp::TBinaryProtocol, name::String, seqid::Int32, mtyp::Int32, m::calculate_result_Calc)
│        @ Thrift d:\Thrift.jl-0.8.4\src\processor.jl:25
│      [5] _process(p::ThriftProcessor, inp::TBinaryProtocol, outp::TBinaryProtocol, name::String, typ::Int32, seqid::Int32)
│        @ Thrift d:\Thrift.jl-0.8.4\src\processor.jl:62
│      [6] process(p::ThriftProcessor, inp::TBinaryProtocol, outp::TBinaryProtocol)
│        @ Thrift d:\Thrift.jl-0.8.4\src\processor.jl:37
│      [7] process(p::CalcProcessor, inp::TBinaryProtocol, outp::TBinaryProtocol)
│        @ Main d:\Thrift.jl-0.8.4\test\calculator\gen-jl\arithmetic\Calc.jl:116
│      [8] serve_accepted(client::TSocket, s::Thrift.TServerBase)
│        @ Thrift d:\Thrift.jl-0.8.4\src\server.jl:19
│      [9] serve(ss::TSimpleServer)
│        @ Thrift d:\Thrift.jl-0.8.4\src\server.jl:46
│     [10] calcsrvr()
│        @ Main d:\Thrift.jl-0.8.4\test\calculator\srvr.jl:38
│     [11] top-level scope
│        @ d:\Thrift.jl-0.8.4\test\calculator\srvr.jl:42
│     [12] include(fname::String)
│        @ Base.MainInclude .\client.jl:444
│     [13] top-level scope
│        @ REPL[2]:1
│     [14] eval