declare namespace org {
    namespace eclipse {
        namespace jetty {
            namespace websocket {
                namespace common {
                    namespace io {
                        class AbstractWebSocketConnection$Flusher extends org.eclipse.jetty.websocket.common.io.FrameFlusher {
                            protected onFailure(arg0: java.lang.Throwable): void
                            public static class: java.lang.Class<any>
                        }
                    }
                }
            }
        }
    }
}