4.0.0 org.baeldung xstream-introduction 0.0.1-SNAPSHOT xstream-introduction An Introduction To XStream com.thoughtworks.xstream xstream ${xstream.version} org.codehaus.jettison jettison ${jettison.version} junit junit ${junit.version} log4j log4j ${log4j.version} org.apache.maven.plugins maven-compiler-plugin ${maven-compiler-plugin.version} 1.8 1.8 1.4.9 1.3.8 1.2.17 4.12 3.6.0