deepankar created THRIFT-2988:
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Summary: Class Cast Exception in Generated Java AsyncProcess
Key: THRIFT-2988
URL: https://issues.apache.org/jira/browse/THRIFT-2988
Project: Thrift
Issue Type: Bug
Components: Java - Compiler, Java - Library
Reporter: deepankar
Priority: Critical
When using Async Processor, there is a class cast exception when you call the
onError function on AsyncMethodCallback with an exception other than the
expected exception
This occurs because the org.apache.thrift.TApplicationException being cast as
(org.apache.thrift.TBase) in the generated code for a service
{code:title=Bar.java|borderStyle=solid}
indent(f_service_) << "{" << endl;
indent_up();
indent(f_service_) << "msgType =
org.apache.thrift.protocol.TMessageType.EXCEPTION;" << endl;
indent(f_service_) << "msg = (org.apache.thrift.TBase)new "
"org.apache.thrift.TApplicationException(org.apache.thrift."
"TApplicationException.INTERNAL_ERROR,
e.getMessage());" << endl;
indent_down();
indent(f_service_) << "}" << endl;
{code}
link : [github-trunk
|https://github.com/apache/thrift/blob/master/compiler/cpp/src/generate/t_java_generator.cc#L3209-L3221]
There are two ways to solve this :
* one is make TApplicationException to extend TBase
* another is to change the generation logic here
I can put up a patch based on what approach is advised ?
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