Ok now it's work correctly :-)
The last error was corrected by pom exclusion:
<dependency>
<groupId>org.ow2.dragon</groupId>
<artifactId>dragon-uddi-ws</artifactId>
<version>1.1-SNAPSHOT</version>
<exclusions>
<exclusion>
<artifactId>xml-apis</artifactId>
<groupId>xml-apis</groupId>
</exclusion>
<exclusion>
<groupId>org.apache.geronimo.specs</groupId>
<artifactId>geronimo-servlet_2.5_spec</artifactId>
</exclusion>
</exclusions>
</dependency>
Because geronimo-servlet_2.5_spec.jar wasn't necessary (in Jboss-5.1.0.GA/common/lib, servlet-api.jar is already present)
Thank you very much, Ales for your help :-)
Best regards,
Adrien