[jira] Created: (AVRO-171) Protocol Introspection can product invalid forward references

[Mr Fish (JIRA)]

Protocol Introspection can product invalid forward references
-------------------------------------------------------------

                 Key: AVRO-171
                 URL: https://issues.apache.org/jira/browse/AVRO-171
             Project: Avro
          Issue Type: Bug
          Components: java
    Affects Versions: 1.2.0
         Environment: java
            Reporter: Mr Fish


Take a look at this code that is what happens in SpecificResponder handshake.

        // server side
        final Protocol protocol = 
ReflectData.get().getProtocol(MyServiceIface.class);
        final String string = protocol.toString();

        // client side
        Protocol.parse(string);

If you have a compound object made of 
class A {
    B1 b1;
    B2 b2;
}

class B1 {
    X x;
}

class B2 {
    X x;
}

Then the types will be built up by RefectData.createSchema()
A, B1, X, B2

This is then reversed by RefectData.getProtocol() so B1 has no forward reference
B2, X, B1, A.

But this breaks B2
org.apache.avro.SchemaParseException: Undefined name: "X"

  




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