Kohsuke,
Thanks a lot for your answer, I had previously turned on debugging, but
missed the trace about the Xerces version. Looking at it more closely made
me realize that I made a mistake in the syntax of my build.xml files and
therefore the jaxp/jaxp-api.jar and jaxp/endorsed/*.jar were actually not
included.
I guess that they're now part of JDK 1.5.0 so this worked with JDK 1.5.0,
and this also worked when I forced the JVM to use it with the endorsed
mechanism.
With the classpath for the taskdef fixed, I no longer need the ANT_OPTS
trick.
Thanks again for you timely help!
Regards,
Guillaume.
> -----Original Message-----
> From: Kohsuke Kawaguchi [mailto:Kohsuke.Kawaguchi_at_Sun.COM]
> Sent: mercredi 15 décembre 2004 18:17
> To: users_at_jaxb.dev.java.net
> Subject: Re: How to use XJC with standard ANT distribution and without
> JWSDP_HOME
>
>
> Guillaume Berche wrote:
> > Hello,
> >
> > I've struggled for a while to manage to use the XJC compiler
> and the runtime
> > without the full jwsdp version 1.5. I finally managed to get it
> working, and
> > hope this email might help others running through the same problems.
> >
> > I'm was trying to use JAXB's XJC ANT task with the standard distribution
> > that my project uses: ant 1.6.2
> >
> > The first step was to download and install jwsdp-1.5. I was
> able to properly
> > run the XJC ANT task with the bundled ant version.
> >
> > Then, I was trying to integrate JAXB RI 1.0.4 into my standard ANT build
> > process, and I was running into problems when using JDK 1.4.2. I've had
> > tried to follow the JAXB ANT task documentation and separate the
> > compilation, and runtime classpath.
> > I'd therefore added the jars that are described as being required in
> > jwsdp-1.5\jaxb\docs\ReleaseNotes.html
> >
> >
> > However, when running with JDK 1.4.2, I was getting the following error:
> >
> > --------------------------
> > AIX:/users/latestBuild/Misc/foo>ant clean compile
> > Buildfile: build.xml
> >
> > clean:
> > [delete] Deleting directory C:\users\latestBuild\Misc\foo\gen-src
> >
> > compile:
> > [echo] Compiling the schema...
> > [mkdir] Created dir: C:\users\latestBuild\Misc\foo\gen-src
> > [xjc] Compiling
> >
file:/C:/users/latestBuild/Misc/foo/conf/schema/intelligent-network-link.xsd
> [xjc] [WARNING] Unable to validate your schema. Most likely,
the
> JVM has loaded an incompatible XML parser implementation. You should fix
> this before relying on the generated code. Please see the release
> notes for details.
> [xjc] unknown location
>
>
> BUILD FAILED
> java.lang.NoClassDefFoundError:
> com/sun/org/apache/xml/internal/serialize/Output
> Format
>
> Total time: 6 seconds
> --------------------------
>
> I checked the version of xercesImpl.jar used in both ant 1.6.2 and
> jwsdp-1.5\jaxp\lib\endorsed: they happen to be the same version: Xerces J
> 2.6.2.
>
> However, when I run the same compilation with JDK 1.5.0, I get no error. I
> suspect that JDK 1.4.2 has an incompatible version of xerces embedded that
> JDK 1.5.0 does not.
>
> I solved the problem my telling ANT to ask the JVM to use the specified
libs
> as an overide of its builtin libs:
> export ANT_OPTS="-Djava.endorsed.dirs=./lib/jaxp/endorsed"
>
> This solved the problem: now I can properly execute XJC without the JWSDP
> and with a standard unmodified ANT 1.6.2 distribution.
>
> I hope this can help,
Thank you very much for sharing this. To add to your note, if you run
ant with the -verbose option, XJC should tell you where you are loading
Xerces from, and the version of that Xerces. That might help you
trouble-shoot the problem.
When we've been developing JAXB RI, we've used standard Apache Ant 1.5.3
with XJCTask without using any ANT_OPTS and it just worked fine.
I'm not totally sure, but I thought if your <taskdef> includes Xerces
that XJC needs, then that would work fine.
In 2.0, we'll be removing this ugly dependency to a particular version
of Xerces, so hopefully our users won't have to suffer a problem like this.
--
Kohsuke Kawaguchi
Sun Microsystems kohsuke.kawaguchi_at_sun.com
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