The problem you observe can happen if the classloader that is used does
not see the necessary packages.
As in OSGi each bundle classloader can only see the packages it imports
you can have the effect that you can not load a package even if it is in
the bundle if the code uses a classloader that does not have the
necessary imports (e.g. from a different bundle).
This typically happens with legacy code that makes assumptions on the
classloader that it rather should not for OSGi.
The hibernate vailidation is such a case. The good news is that it can
be tuned to work in OSGi.
See
https://github.com/hibernate/hibernate-validator/blob/master/osgi/integrationtest/src/test/java/org/hibernate/validator/osgi/integrationtest/OsgiIntegrationTest.java
Christian
Am 08.11.2015 um 19:11 schrieb Benson Margulies:
package:exports -d does not think that more than one bundle is
exporting the package.
Here's the class I built to stay out of the SPI.
public final class OSGIValidationFactory {
private OSGIValidationFactory() {
//
}
static class OSGIServiceDiscoverer implements ValidationProviderResolver {
@Override
public List<ValidationProvider<?>> getValidationProviders() {
List<ValidationProvider<?>> providers = new ArrayList<>();
providers.add(new HibernateValidator());
return providers;
}
}
public static ValidatorFactory newHibernateValidatorFactory() {
javax.validation.Configuration<?> config =
Validation.byDefaultProvider()
.providerResolver(new OSGIServiceDiscoverer())
.configure();
return config.buildValidatorFactory();
}
}
On Sun, Nov 8, 2015 at 1:10 PM, Benson Margulies <[email protected]> wrote:
Karaf 4.0.2.
I'm not sure what you mean by 'framework'. I'm just running karaf, I
am not messing with the system bundle. I pulled together my own little
bundle for validation that uses a custom locator to avoid the SPI, and
it works in an isolated test in karaf, but when I put the whole thing
together, blam. How would I investigate the possibility of multiple
bundles?
On Sun, Nov 8, 2015 at 1:06 PM, Jean-Baptiste Onofré <[email protected]> wrote:
Hi Benson,
don't you have multiple bundle providing the same package ?
I suspect two bundles providing com.sun.el package (or the system package).
What's the Karaf version (and framework in use) ?
Regards
JB
On 11/08/2015 07:04 PM, Benson Margulies wrote:
I'm getting a ClassNotFoundException trying to use bean validation.
karaf@root>package:exports | grep com.sun.el
com.sun.el | 2.2.4
| 174 | org.glassfish.web.javax.el
But:
karaf@root> bundle:find-class com.sun.el.ExpressionFactoryImpl
karaf@root>
even though the class is sitting right there in the jar file for that
bundle.
karaf@root>bundle:classes 174 | grep Expr
com/sun/el/ExpressionFactoryImpl.class
what's up?
--
Jean-Baptiste Onofré
[email protected]
http://blog.nanthrax.net
Talend - http://www.talend.com
