[ mx4j-Bugs-1031848 ] DescriptorSupport doesn't provide a useful clone imp.

Bugs item #1031848, was opened at 2004-09-21 14:24
Message generated for change (Comment added) made by biorn_steedom
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=450647&aid=1031848&group_id=47745

>Category: JMX implementation
>Group: Release 2.0.1
>Status: Closed
>Resolution: Fixed
Priority: 5
Submitted By: Jon Seymour (jonseymour)
>Assigned to: Simone Bordet (biorn_steedom)
Summary: DescriptorSupport doesn't provide a useful clone imp.

Initial Comment:
The JMX specification defines the Descriptor.clone()
method which "returns a new Descriptor instance which
is a duplicate of the [receiving descriptor]."

However, MX4J's implementation of clone doesn't produce
a duplicate which is usefully different from the
original object. In particular, mutations of the new
field values of the cloned descriptor will change the
field values of the source descriptor.

A duplicate defined in this way isn't very useful - one
may as well copy the original object reference instead
of cloning it and so this can't be the intended meaning
of the JMX specification.

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>Comment By: Simone Bordet (biorn_steedom)
Date: 2004-10-05 15:57

Message:
Logged In: YES 
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Fixed by calling the copy constructor from clone()

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Comment By: Jon Seymour (jonseymour)
Date: 2004-09-22 12:03

Message:
Logged In: YES 
user_id=1125728

Another note: the MX4J DescriptorSupport class's clone()
method behaves differently to the reference implementation.
In particular, the reference implementation's
implementations answers an instance constructed with the
copy constructor.

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https://sourceforge.net/tracker/?func=detail&atid=450647&aid=1031848&group_id=47745


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