org.eclipse.jetty.websocket.common.extensions.identity.IdentityExtension
org.eclipse.jetty.websocket.common.extensions.fragment.FragmentExtension
org.eclipse.jetty.websocket.common.extensions.compress.PerMessageDeflateExtension
org.eclipse.jetty.websocket.common.extensions.compress.DeflateFrameExtension
org.eclipse.jetty.websocket.common.extensions.compress.XWebkitDeflateFrameExtension
