ClassCastException: org.apache.xerces.jaxp.DocumentBuilderFactoryImpl cannot be cast to javax.xml.parsers.DocumentBuilderFactory

Problem :

When I deploy my war on JBoss 6.0.0, I have the following error :

java.lang.ClassCastException: org.apache.xerces.jaxp.DocumentBuilderFactoryImpl cannot be cast to javax.xml.parsers.DocumentBuilderFactory


Here is an extract of my Maven pom.xml file :

   <dependency>
     <groupId>org.hibernate</groupId>
     <artifactId>hibernate-annotations</artifactId>
     <version>3.4.0.GA</version>
     <exclusions>
       <!-- Exclude Commons Logging in favor of SLF4j -->
       <exclusion>
         <groupId>org.apache.commons</groupId>
         <artifactId>com.springsource.org.apache.commons.logging</artifactId>
       </exclusion>
   </dependency>

Solution :

You have to exclude xml-apis because there is a conflict between xml-apis and librairies into JBoss (xeres-impl).
So you have to do the following :
     <dependency>
     <groupId>org.hibernate</groupId>
     <artifactId>hibernate-annotations</artifactId>
     <version>3.4.0.GA</version>
     <exclusions>
       <!-- Exclude Commons Logging in favor of SLF4j -->
       <exclusion>
         <groupId>org.apache.commons</groupId>
         <artifactId>com.springsource.org.apache.commons.logging</artifactId>
       </exclusion>
   <exclusion>
     <groupId>xml-apis</groupId>
     <artifactId>xml-apis</artifactId>
   </exclusion>        
     </exclusions>
   </dependency>