[Hibernate-issues] [Hibernate-JIRA] Commented: (HB-537) Proxy Problem with overloaded functions

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The following comment has been added to this issue:

     Author: Gavin King
    Created: Wed, 10 Dec 2003 6:06 AM
       Body:
Yes. interface proxies are castable to the subclass type. but this won't work if you have two methods with conflicting return types on diff subclasses.
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View the issue:

  http://opensource.atlassian.com/projects/hibernate/secure/ViewIssue.jspa?key=HB-537


Here is an overview of the issue:
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        Key: HB-537
    Summary: Proxy Problem with overloaded functions
       Type: Bug

     Status: Closed
   Priority: Major
 Resolution: REJECTED

    Project: Hibernate2
   Versions:
             2.0.3

   Assignee: Gavin King
   Reporter: Panagiotis Louridas

    Created: Wed, 10 Dec 2003 5:50 AM
    Updated: Wed, 10 Dec 2003 6:06 AM
Environment: linux, Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2-b28), hibernate 2.0.3, postgres.

Description:
Suppose we have class A and two subclasses A<-B, A<-C. Suppose now that B has methods Foo getFoo() and void setFoo(Foo), while C has methods Bar getFoo() and void setFoo(Bar).

I get strange proxy behaviour when working with objects of classes A, B, C. Specifically, when querying on B, C and then on A, I get 

SEVERE: CGLIB Enhancement failed
java.lang.IllegalArgumentException: Can't implement:
InterestPayment
and
TaxPayment

(where InterestPayment = B and TaxPayment = C).

Everything works fine when querying on A and then on B and C, though.




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