https://help.eclipse.org/latest/topic/org.eclipse.net4j.doc/javadoc/org/eclipse/net4j/ws/jetty/Net4jWebSocketServlet.html
Net4jWebSocketServlet (Net4j Signaling Platform Documentation)
declaration: package: org.eclipse.net4j.ws.jetty, class: Net4jWebSocketServlet
signalingplatformdocumentation