how to change namespace

[devcui]

 InputStream serviceMonitorIn = new ByteArrayInputStream(serviceMonitor.get(0).getBytes(StandardCharsets.UTF_8));
            CustomResourceDefinition crd = this.kubernetesClient
                    .inNamespace("monitoring")
                    .apiextensions()
                    .v1()
                    .customResourceDefinitions()
                    .load(serviceMonitorIn)
                    .get();

is my code, and the DefaultKubernetesClient namespace was cloud, when i exec the code i will have an error

io.fabric8.kubernetes.client.KubernetesClientException: Namespace mismatch. Item namespace:monitoring. Operation namespace:cloud.

how to change the namespace of the DefaultKubernetesClient?

[rohanKanojia]

I think client seems to be complaining for difference in operation namespace (inNamespace(monitoring)) and namespace present in metadata.namespace content of serviceMonitorIn