[Bug classpath/23727] New: Proxy.Proxy#hashCode() can return different value when a.equals(b)

[ujihara at aurora dot dti dot ne dot jp]

java.lang.reflect.Proxy$ProxyType#hashCode() can return non-unique value even if
objects equals each other, ie, when a.equals(b) is true, a.hashCode() cann't
equal b.hashCode().
The reason is hashCode() method is order-sensitive against interfaces field, but
equals(Object) method is not. I think equals(Object) method be modified rather
than hashCode() method because it is expensive to recognize the real sameness
between two interfaces and it isn't wrong thing to use simple equals method.

-- 
           Summary: Proxy.Proxy#hashCode() can return different value when
                    a.equals(b)
           Product: classpath
           Version: 0.17
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: classpath
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: ujihara at aurora dot dti dot ne dot jp
                CC: bug-classpath at gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23727