@Override
        public void close(IAsyncResultHandler<Void> closeResultHandler) {
            close();
            closeResultHandler.handle(AsyncResultImpl.create((Void) null));
        }
@author Marc Savy {@literal <msavy@redhat.com>}
gateway/engine/core/src/main/java/io/apiman/gateway/engine/impl/DefaultLdapClientConnection.java