It looks like the problem occurs within a single build script. The bug 
mentioned applies only when you make a call to another script using <ant>.

On 9/13/05, Antoine Levy-Lambert <[EMAIL PROTECTED]> wrote: 
> 
> Hello Aliaksandr,
> 
> this sounds like bug 25777, which was fixed in Ant 1.6.3,
> Which version of ant are you using ?
> 
> 
> Cheers,
> 
> Antoine
> 
> http://issues.apache.org/bugzilla/show_bug.cgi?id=25777
> 
> Aliaksandr Voitau wrote:
> 
> > Hi,
> > here is a piece of my buildfile.
> >
> > <path id="sample.classpath">
> > <pathelement location="${lib}/sample.jar" />
> > </path>
> >
> > <target name="target-name">
> > <taskdef name="sample"
> > classname="my.pkg.Sample">
> > <classpath refid="sample.classpath" />
> > </taskdef>
> > </target>
> >
> > While trying to invoke this target from java code i get the following
> > error:
> >
> > taskdef class my.pkg.Sample cannot be found,
> >
> > although i set ${lib} from java code using setProperty(...) right
> > before executing target "target-name".
> > However, if i'll just paste <path> content to <classpath>:
> >
> > <target name="target-name">
> > <taskdef name="sample"
> > classname="my.pkg.Sample">
> > <classpath>
> > <pathelement location="${lib}/sample.jar" />
> > </classpath>
> > </taskdef>
> > </target>
> >
> > or just put ${lib} to property file everything works fine, or even
> > just nest <path> into <target>.
> >
> > So, <path> seems to resolve nested elements' properties only on the
> > time of the first parsing by ProjectHelper's parse(...), but not on
> > executing particular target, using that path, when previously
> > undefined properties became available. Is it correct behaviour?
> > Couldn't find any explanation in available documentation.
> >
> >
> 
> 
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