Error - Exception occurred during code generation for the WSDL

I'm trying to generate the java classes from the .wsdl file, but when trying to generate the following error:




Exception occurred during code generation for the WSDL : java.lang.NoClassDefFoundError: org/apache/ws/commons/schema/utils/NamespacePrefixList
     java.lang.reflect.InvocationTargetException

In the pom I added the lib:

<dependency>
            <groupId>org.apache.ws.commons</groupId>
            <artifactId>XmlSchema</artifactId>
            <version>1.1</version>
        </dependency>

I attempted to resolve this by downloading the jar file "xmlschema-core-2.2.1.jar", but the exception persists.