[xmlvm-dev] java.util.HashMap

[Troy G. <tro...@gm...>]

Hello everyone,

It seems like the java.util.HashMap might be implemented incorrectly.
 Either that, or I'm not seeing something.  Below is the implementation.  I
had some code that was cross-compiled over which had the equals method and
hashCode method implemented correctly.

During the program run, it could not find User instances in the map.  What I
discovered is this was only a problem when the User instances were separate
references even though the equals method and hashCode was correct.

I'm thinking the [NSValue valueWithPointer:key] compares references and not
the underlying values (in this case User).  Has anyone seen this same issue?
 This may not even be a problem in the new C back-end, but I'm curious what
you guys think.  The only solution I could come up with is to wrap the key
in something else and forward the isEqual and hash methods.

- (java_lang_Object*)
put___java_lang_Object_java_lang_Object:(java_lang_Object*) key:
(java_lang_Object*) value {
java_lang_Object* oldObj = [self get___java_lang_Object:key];
 id k = [key conformsToProtocol: @protocol(NSCopying)] ? key : [NSValue
valueWithPointer: key];
[self setObject:value forKey:k];
 return oldObj;
}

Thanks again for all the great work!