Hi,

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• How to install (from Fedora or JPackage repos) an jaxp_parser_impl.jar / Xerces J2 complied

for JDK 5m if there is such a thing?

I don't think there is in Fedora. I don't know about JPackage.

I'll check.

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• If there isn't, where should I change the SPEC from xervers-j2*src.rpm to rebuild it using Sun

JDK5 or to add target=1.5.0?

You could probably try changing the BuildRequires line on java-devel and rebuild. With no target specified, it'll probably build whatever your javac defaults to (which I thought was less than its version but evidently not).

Doesn't work, because the build itself needs ant which doesn't run with Sun JDK5. Unless I manually install another ant and force it to the path.

...

• How can it be that ant runs fine using gij which in theory supports only Java 5, but not with

Sun JDK 5?

I don't know. Maybe the targets that are required in your case aren't used by any Fedora packages which build with gij?

Looks like that gij doesn't use xerces to provide jaxp services:

# alternatives --display jaxp_parser_impl jaxp_parser_impl - status is manual. link currently points to /usr/share/java/xerces-j2.jar /usr/share/java/libgcj-4.4.4.jar - priority 20 /usr/share/java/xerces-j2.jar - priority 40 Current `best' version is /usr/share/java/xerces-j2.jar.

But running ant with gij and gcj yelds:

------------------------------------------- XML Parser information ------------------------------------------- XML Parser : org.apache.xerces.jaxp.SAXParserImpl XML Parser Location: /usr/share/java/jaxp_parser_impl.jar Namespace-aware parser : org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser Namespace-aware parser Location: /usr/share/java/jaxp_parser_impl.jar

Maybe gij finds it's own jaxp implementation in libgcj.jar before trying xerves, and so ant works. But I don't like the idea of making whatever jaxp parser comes in libgcj be the system-wide default for JDK 5. Or maybe gij and classpath provide for some JDK6 features, including the class file format.

[]s, Fernando Lozano