Bugs item #634362, was opened at 2002-11-06 11:55
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Category: None
Group: v3.0 Rabbit Hole
Status: Open
Resolution: None
Priority: 5
Submitted By: Michael Lipp (mlipp)
Assigned to: Nobody/Anonymous (nobody)
Summary: Failure if EntityBean overrides hashCode
Initial Comment:
This is a follow on to #595738 which has not been fixed
properly.
The CachedConnectionManager uses an entity beans equals
and hashCode method to manage EJB containers. This
fails if the EJB itself overrides equals/hashCode (see
#595738 for a detailed description).
The proper solution to the problem are collection/map
implementations that use == instead of equals and
System.identityHashCode instead of hashCode.
The class IdentityWrapper which now exists in 3.0.4
does not solve the problem. It still calls hashCode on
the EJB and (as explained in the previous bug report) a
an EJB's hashCode implementation may fail if the EJB is
in the pooled state.
Worse, the current implementation actually disables
connection caching. As every object is wrapped with a
new IdentityWrapper ("key = new
IdentityWrapper(rawKey)"), the "stack.contains(key)"
will *always* fail.
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