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From Stefan Bodewig <>
Subject Re: Using files in classpath in task file=""
Date Fri, 04 Apr 2003 15:55:57 GMT
On Fri, 04 Apr 2003, Nicola Ken Barozzi <> wrote:

> Sure. Look at the JDK 1.4 version,

Ahh, far to modern for Ant.

> Because a URI can be navigated, and it's possible to make a File
> from a URI.

Not always.

> extends

But this version cannot be the argument for the (existing) setters.
For this to work, IntrospectionHelper will need to take special care
(i.e. if setXYZ( is found, actually pass it an instance
of  This is possible, but ...

* Is this generally desirable?

<mkdir dir=""/>

  <fileset dir="jar:">
    <include name="**/*.gif"/>

means what?

If I sound harsh, please forgive me.  I'm trying to show that in some
situations it may be better to stick with files and we need a way to
distinguish them.

* is not as transparent as you say.

Tasks could only use the URI if they first check that the object is is
our version of File and cast to it.  I.e. the change in
IntrospectionHelper will only work for tasks that can handle it.

Both points mean that it becomes hard to explain when URIs can get
used and when not.

Just as people have by now become so used to the relazive path
resolution magic that happens inside Ant that they now report it as a
bug if a ceratin attribute is not resolved relative to basedir, we
will get bug reports that certain tasks do not deal with URLs of
protocol foo properly.  I find it hard to imagine that we'll be able
to convert all tasks that could reasonably be expected to deal with
URIs in one go.

> if I gave you just an url in the constructor, you could write
> almost, if not all, those methods.

That really depends on the protocol you use.  delete() for resources
loaded from a jar located on a remote server, loaded via some P2P
protocol?  I may be making up things, I know.

> Am I really missing the obvious? Could as well be.

Same here.


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