com.sun.grizzly grizzly-project 1.7.3.2 ../../../pom.xml 4.0.0 com.sun.grizzly.samples grizzly-cometd-echo war ${grizzly-version} grizzly-cometd-sample-echo https://grizzly.dev.java.net install grizzly-cometd-echo com.sun.grizzly grizzly-cometd ${grizzly-version} provided