4.0.0 com.google.inject.extensions extensions-parent 4.2.0 guice-struts2 Google Guice - Extensions - Struts2 com.google.inject.extensions guice-servlet ${project.version} javax.servlet servlet-api 2.5 provided org.apache.struts struts2-core 2.2.1 provided maven-jar-plugin com.google.guice.extensions.struts2