Priyanka,
I have done things like you so I will talk about what I have done here.
I simply made a JAXB bundle myself, which include those jars I got from
the JAXB official site -- activation.jar, jaxb-api.jar, jaxb-impl.jar and
jsr173_1.0_api.jar. I put them in a bundle and export their packages in the
bundle's MANIFEST.MF Export-Package header. After this, I got a jaxb bundle
and other bundle using JAXB api should Import these packages.
Other things are just like you. I put the model classes generated from xsds
by jaxb in a bundle. And put the marshal/unmarshall in another bundle.
The marshal/unmarshall
bundle imports package from the model bundle and JAXB bundle, and then have
the following code to create a marshal/unmarshall to serialize/deserialize
the model object.
if(unmarshaller == null){
try {
JAXBContext jc = JAXBContext.newInstance(Model.class);
unmarshaller = jc.createUnmarshaller();
log.debug("create unmarshaller for Model parser");
} catch (JAXBException e) {
log.error(e.getMessage(),e);
}
}
Note that if a use I use Model.class as the argument of the
JAXBContext.newInstance()
method. That I have try if I use a string -- "some.package.Model" instead,
it will cause a JAXB exception. I don't know exactly why ? But I guess it is
related with OSGi bundle's class loader.
Anyone who have other solutions?
Link
On Wed, Apr 15, 2009 at 5:49 AM, Mitra, Priyanka
<[email protected]>wrote:
> Hi,
>
> I am running into classloader issues in the equinox/osgi framework while
> using Jaxb. I have a jar that contains classes generated from xsds. User
> class (request) is getting created in plugin A which I need to
> marshal/unmarshall in plugin B which makes a data access call to the backend
> and returns a response and unmarshalls it to response user object. I ran
> into Linkage errors. I know why that happens. Jaxb API looks for Jaxb
> service provider and user classes in that bundle only.
>
> I came across "DynamicJava website" which resolves this problem. *
> http://www.dynamicjava.org/projects/jsr-api/jaxb-osgi*<http://www.dynamicjava.org/projects/jsr-api/jaxb-osgi>
> I tried to download all the jars, org.dynamicjava.jsr.jaxb_api,
> org.dynamicjava.jsr.jpa_api, org.dynamicjava.jsr.stax_api, germino.jar and
> jaxb-impl.jar, but still couldn’t get it to work. Has anyone tried to use
> DynamicJava or any solution to get Jaxb working with osgi?
>
> Thanx
> Priyanka
>
> _______________________________________________
> equinox-dev mailing list
> [email protected]
> https://dev.eclipse.org/mailman/listinfo/equinox-dev
>
>
_______________________________________________
equinox-dev mailing list
[email protected]
https://dev.eclipse.org/mailman/listinfo/equinox-dev
