Re: DO NOT REPLY [Bug 42219] - Inefficient code in Union, DirectoryScanner makes large copy tasks very slow

[Alexey N. Solofnenko]

I think we should not limit supported features supported by modern Java while keeping backward compatibility with older versions. One way is to use reflection. Another is to provide an alternative implementation of some classes (FileResource) to be used with modern Java. The later is straightforward, but the most recent Java is required to build it.

- Alexey.

Peter Reilly wrote:

If something could be done better with modern Java, why not to use it when possible?

For file permissions, I think we have to use refection to see if
the file object supports the api.  I do not think that we can
use pure java to check the permissions (except by using
exec hackery) for pre java 1.4.

Peter

On 4/24/07, Alexey Solofnenko <[EMAIL PROTECTED]> wrote:

"No" for file permissions too?

- Alexey.

On 4/24/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
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> -------
> #1
> Thanks mike for the build.xml, it would be nicer
> to be completel self contained - perhaps a
> bash/python script to create a big directory, and the
> build.xml to use this (see:
>

> ------- Additional Comments From [EMAIL PROTECTED] 2007-04-24 10:09 > http://svn.apache.org/viewvc/ant/core/trunk/src/etc/performance/build.xml?revision=448449&view=markup

> for an example of a selcontained test.
>
> #5
> I do not think that we should do this (provide a pre-jdk1.4 jar) for
> this problem.
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Alexey N. Solofnenko
Home: http://trelony.cjb.net/
Pleasant Hill, CA (GMT-8 usually)

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Alexey N. Solofnenko <http://trelony.cjb.net/>
Pleasant Hill, CA (GMT-8 usually)

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