diff --git a/operator/pkg/uninstall/uninstaller.go b/operator/pkg/uninstall/uninstaller.go
index 5a8cb50d..c4e2b465 100644
--- a/operator/pkg/uninstall/uninstaller.go
+++ b/operator/pkg/uninstall/uninstaller.go
@@ -75,6 +75,7 @@ func NamespacedResources() []schema.GroupVersionKind {
 		gvk.Secret.Kubernetes(),
 		gvk.ServiceAccount.Kubernetes(),
 		gvk.Job.Kubernetes(),
+		gvk.Namespace.Kubernetes(),
 		{Group: "rbac.authorization.k8s.io", Version: "v1", Kind: "RoleBinding"},
 		{Group: "rbac.authorization.k8s.io", Version: "v1", Kind: "Role"},
 	}
diff --git a/pkg/art/art.go b/pkg/art/art.go
index b42671f3..8c5c5d38 100644
--- a/pkg/art/art.go
+++ b/pkg/art/art.go
@@ -8,10 +8,6 @@ import (
 //go:embed dubbo-ascii.txt
 var dubboASCIIArt string
 
-func dubboArt() string {
-	return dubboASCIIArt
-}
-
 func DubboColoredArt() string {
 	return color.New(color.FgHiBlue).Add(color.Bold).Sprint(dubboASCIIArt)
 }
diff --git a/pkg/art/dubbo-ascii.txt b/pkg/art/dubbo-ascii.txt
index 962d6bc9..aea3d77e 100644
--- a/pkg/art/dubbo-ascii.txt
+++ b/pkg/art/dubbo-ascii.txt
@@ -1,5 +1,5 @@
- ____        _     _
-|  _ \ _   _| |__ | |__   ___
-| | | | | | | |_ \| |_ \ / _ \
-| |_| | |_| | |_| | |_| | |_| |
-|____/ \____|____/|____/ \___/
\ No newline at end of file
+ ____            _       _
+|  _ \   _   _  | |__   | |__     ___
+| | | | | | | | | |_ \  | |_ \   / _ \
+| |_| | | |_| | | |_| | | |_| | | |_| |
+|____/   \____| |____/  |____/   \___/
\ No newline at end of file
diff --git a/pkg/config/schema/gvk/resources.gen.go b/pkg/config/schema/gvk/resources.gen.go
index bc557fa0..824c913d 100644
--- a/pkg/config/schema/gvk/resources.gen.go
+++ b/pkg/config/schema/gvk/resources.gen.go
@@ -31,6 +31,8 @@ func ToGVR(g config.GroupVersionKind) (schema.GroupVersionResource, bool) {
 		return gvr.Service, true
 	case ServiceAccount:
 		return gvr.ServiceAccount, true
+	case Namespace:
+		return gvr.Namespace, true
 	case Job:
 		return gvr.Job, true
 	}
@@ -48,6 +50,8 @@ func FromGVR(g schema.GroupVersionResource) (config.GroupVersionKind, bool) {
 	switch g {
 	case gvr.CustomResourceDefinition:
 		return CustomResourceDefinition, true
+	case gvr.Namespace:
+		return Namespace, true
 	case gvr.Deployment:
 		return Deployment, true
 	case gvr.StatefulSet:
diff --git a/pkg/config/schema/gvr/resource.gen.go b/pkg/config/schema/gvr/resource.gen.go
index 38010c23..d0b6cae0 100644
--- a/pkg/config/schema/gvr/resource.gen.go
+++ b/pkg/config/schema/gvr/resource.gen.go
@@ -7,6 +7,7 @@ var (
 	Deployment               = schema.GroupVersionResource{Group: "apps", Version: "v1", Resource: "deployments"}
 	StatefulSet              = schema.GroupVersionResource{Group: "apps", Version: "v1", Resource: "statefulsets"}
 	Job                      = schema.GroupVersionResource{Group: "batch", Version: "v1", Resource: "jobs"}
+	Namespace                = schema.GroupVersionResource{Group: "", Version: "v1", Resource: "namespaces"}
 	Secret                   = schema.GroupVersionResource{Group: "", Version: "v1", Resource: "secrets"}
 	Service                  = schema.GroupVersionResource{Group: "", Version: "v1", Resource: "services"}
 	ServiceAccount           = schema.GroupVersionResource{Group: "", Version: "v1", Resource: "serviceaccounts"}
diff --git a/pkg/kube/client_config.go b/pkg/kube/client_config.go
index 679fe02f..2e38435d 100644
--- a/pkg/kube/client_config.go
+++ b/pkg/kube/client_config.go
@@ -10,6 +10,12 @@ type clientConfig struct {
 	restConfig rest.Config
 }
 
+func NewClientConfigForRestConfig(restConfig *rest.Config) clientcmd.ClientConfig {
+	return &clientConfig{
+		restConfig: *restConfig,
+	}
+}
+
 func (c clientConfig) RawConfig() (api.Config, error) {
 	cfg := api.Config{
 		Kind:           "Config",
@@ -39,9 +45,3 @@ func (c clientConfig) Namespace() (string, bool, error) {
 func (c clientConfig) ConfigAccess() clientcmd.ConfigAccess {
 	return nil
 }
-
-func NewClientConfigForRestConfig(restConfig *rest.Config) clientcmd.ClientConfig {
-	return &clientConfig{
-		restConfig: *restConfig,
-	}
-}
diff --git a/pkg/kube/client_factory.go b/pkg/kube/client_factory.go
index 0ed87376..e0c528e0 100644
--- a/pkg/kube/client_factory.go
+++ b/pkg/kube/client_factory.go
@@ -24,13 +24,6 @@ type clientFactory struct {
 	discoveryClient laziness.Laziness[discovery.CachedDiscoveryInterface]
 }
 
-type restClientGetter interface {
-	ToRestConfig() (*rest.Config, error)
-	ToDiscoveryClient() (discovery.CachedDiscoveryInterface, error)
-	ToRestMapper() (meta.RESTMapper, error)
-	ToRawKubeConfigLoader() clientcmd.ClientConfig
-}
-
 func newClientFactory(clientConfig clientcmd.ClientConfig, diskCache bool) *clientFactory {
 	cf := &clientFactory{
 		clientConfig: clientConfig,
diff --git a/pkg/kube/collection/schemas.go b/pkg/kube/collection/collection.go
similarity index 100%
rename from pkg/kube/collection/schemas.go
rename to pkg/kube/collection/collection.go
index b18f2b57..de78518b 100644
--- a/pkg/kube/collection/schemas.go
+++ b/pkg/kube/collection/collection.go
@@ -33,12 +33,6 @@ func NewSchemasBuilder() *SchemasBuilder {
 	return &SchemasBuilder{schemas: s}
 }
 
-func (b *SchemasBuilder) Build() Schemas {
-	s := b.schemas
-	b.schemas = Schemas{}
-	return s
-}
-
 func (b *SchemasBuilder) Add(s schema.Schema) error {
 	if _, found := b.schemas.byCollection[s.GroupVersionKind()]; found {
 		return fmt.Errorf("collection already exists: %v", s.GroupVersionKind())
@@ -54,3 +48,9 @@ func (b *SchemasBuilder) MustAdd(s schema.Schema) *SchemasBuilder {
 	}
 	return b
 }
+
+func (b *SchemasBuilder) Build() Schemas {
+	s := b.schemas
+	b.schemas = Schemas{}
+	return s
+}
diff --git a/pkg/kube/informerfactory/factory.go b/pkg/kube/informerfactory/factory.go
index a1b014c7..ad558820 100644
--- a/pkg/kube/informerfactory/factory.go
+++ b/pkg/kube/informerfactory/factory.go
@@ -103,6 +103,7 @@ func (f *informerFactory) Shutdown() {
 
 	f.lock.Lock()
 	defer f.lock.Unlock()
+
 	f.shuttingDown = true
 }
 
diff --git a/pkg/kube/util.go b/pkg/kube/util.go
index 91afa2db..251b1c92 100644
--- a/pkg/kube/util.go
+++ b/pkg/kube/util.go
@@ -27,23 +27,6 @@ func BuildClientConfig(kubeconfig, context string) (*rest.Config, error) {
 	return c, nil
 }
 
-func SetRestDefaults(config *rest.Config) *rest.Config {
-	if config.GroupVersion == nil || config.GroupVersion.Empty() {
-		config.GroupVersion = &corev1.SchemeGroupVersion
-	}
-	if len(config.APIPath) == 0 {
-		if len(config.GroupVersion.Group) == 0 {
-			config.APIPath = "/api"
-		} else {
-			config.APIPath = "/apis"
-		}
-	}
-	if config.NegotiatedSerializer == nil {
-		config.NegotiatedSerializer = serializer.NewCodecFactory(nil).WithoutConversion()
-	}
-	return config
-}
-
 func BuildClientCmd(kubeconfig, context string, overrides ...func(configOverrides *clientcmd.ConfigOverrides)) clientcmd.ClientConfig {
 	if kubeconfig != "" {
 		info, err := os.Stat(kubeconfig)
@@ -63,3 +46,20 @@ func BuildClientCmd(kubeconfig, context string, overrides ...func(configOverride
 	}
 	return clientcmd.NewNonInteractiveDeferredLoadingClientConfig(loadingRules, configOverrides)
 }
+
+func SetRestDefaults(config *rest.Config) *rest.Config {
+	if config.GroupVersion == nil || config.GroupVersion.Empty() {
+		config.GroupVersion = &corev1.SchemeGroupVersion
+	}
+	if len(config.APIPath) == 0 {
+		if len(config.GroupVersion.Group) == 0 {
+			config.APIPath = "/api"
+		} else {
+			config.APIPath = "/apis"
+		}
+	}
+	if config.NegotiatedSerializer == nil {
+		config.NegotiatedSerializer = serializer.NewCodecFactory(nil).WithoutConversion()
+	}
+	return config
+}