Could not parse - org.dom4j.DocumentException: org.dom4j.DocumentFactory cannot be cast to org.dom4j.DocumentFactory

Question

I am deploying my application to Tomcat 6.0.20.

Application uses Hibernate as ORM, Spring, and JSF for web-tier.

I also made simple runner from main() method

Answer 1

I solved it by excluding dom4j from hibernate entitymanager.

Also make sure you do mvn clean before.

    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-entitymanager</artifactId>
        <version>4.1.5.SP1</version>
        <scope>compile</scope>
        <exclusions> 
            <exclusion>
                <groupId>dom4j</groupId>
                <artifactId>dom4j</artifactId>
            </exclusion>
        </exclusions>
    </dependency>

Answer 2

Make sure you don't have two different dom4j jars on your classpath.

Answer 3

I solved by adding dom4j to my pom.xml and making the scope provided

<dependency>
    <groupId>dom4j</groupId>
    <artifactId>dom4j</artifactId>
    <version>1.6.1</version>
    <scope>provided</scope>
</dependency>