org.atmosphere atmosphere-project 0.2-SNAPSHOT 4.0.0 org.atmosphere.samples atmosphere-rest-longpolling war ${atmosphere-version} atmosphere-rest-longpolling http://maven.apache.org org.atmosphere atmosphere-core ${atmosphere-version} javax.servlet servlet-api 2.5 provided atmosphere-rest-longpolling org.apache.maven.plugins maven-compiler-plugin 1.5 1.5