Re: An interessting change for shared char[] in String/StringBuffer

[Thomas Zander]

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On Thursday 08 April 2004 01:24, Artur Biesiadowski wrote:
> Tom Tromey wrote:
> >>>From http://java.sun.com/j2se/1.5.0/jcp/beta1/index.html#java.lang:
> >>>"In this release, the sharing between String and StringBuffer has
> >>> been eliminated."
> >>>Does this mean to change to change the implementation in Classpath
> >>> too? I like this optimization...
> >
> > I don't think we necessarily have to change this.  IMO it would depend
> > on whether the change is observable by user code.  Our implementation
> > doesn't always share, anyway.  It only shares if the buffer is mostly
> > in use.
>
> 'Observable by user code' is very broad term. It is possible to write a
> short program which will throw OutOfMemoryException with sharing on and
> work without problems when data is always copied - does it counts as
> observation from user code ?

No, I don't think so.
If the only difference (as I understand from Tom's email) is
faster/effecient implementation then copying behavior from Sus JVM is not
needed in the first place.
Waiting for the 1.5 release and seeing if this proved too unstable for the
Sun JVM gives you a good indication weather this feature is a nice
advancement in Classpath..

Just my 2 cents.
- --
Thomas
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