added
            <dependency>
                <groupId>xstream</groupId>
                <artifactId>xstream</artifactId>
                <version>1.2.2</version>
            </dependency>

            <dependency>
                <groupId>org.codehaus.jettison</groupId>
                <artifactId>jettison</artifactId>
                <version>1.3.6</version>
            </dependency>