private boolean dataKeyNotExist(final String dataKey) {
        return Objects.isNull(consulClient.getKVValue(dataKey).getValue());
    }
Instantiates a new Consul data changed init.

@param consulClient the Consul client
shenyu-admin-listener/shenyu-admin-listener-consul/src/main/java/org/apache/shenyu/admin/listener/consul/ConsulDataChangedInit.java