diff --git a/api/swagger-spec/resourceListing.json b/api/swagger-spec/resourceListing.json
index 33fb4c36002..2e802cfa360 100644
--- a/api/swagger-spec/resourceListing.json
+++ b/api/swagger-spec/resourceListing.json
@@ -1,14 +1,14 @@
 {
   "swaggerVersion": "1.2",
   "apis": [
-   {
-    "path": "/api/v1",
-    "description": "API at /api/v1"
-   },
    {
     "path": "/version",
     "description": "git code version from which this is built"
    },
+   {
+    "path": "/api/v1",
+    "description": "API at /api/v1"
+   },
    {
     "path": "/api",
     "description": "get available API versions"
diff --git a/pkg/apiserver/api_installer.go b/pkg/apiserver/api_installer.go
index bad4e9033f0..10126e5f691 100644
--- a/pkg/apiserver/api_installer.go
+++ b/pkg/apiserver/api_installer.go
@@ -78,7 +78,7 @@ func (a *APIInstaller) Install(ws *restful.WebService) (apiResources []unversion
 	for _, path := range paths {
 		apiResource, err := a.registerResourceHandlers(path, a.group.Storage[path], ws, proxyHandler)
 		if err != nil {
-			errors = append(errors, err)
+			errors = append(errors, fmt.Errorf("error in registering resource: %s, %v", path, err))
 		}
 		if apiResource != nil {
 			apiResources = append(apiResources, *apiResource)
diff --git a/pkg/genericapiserver/genericapiserver.go b/pkg/genericapiserver/genericapiserver.go
index b2e03bfc755..da087ecd7e2 100644
--- a/pkg/genericapiserver/genericapiserver.go
+++ b/pkg/genericapiserver/genericapiserver.go
@@ -18,6 +18,7 @@ package genericapiserver
 
 import (
 	"crypto/tls"
+	"fmt"
 	"net"
 	"net/http"
 	"net/http/pprof"
@@ -27,7 +28,9 @@ import (
 
 	"k8s.io/kubernetes/pkg/admission"
 	"k8s.io/kubernetes/pkg/api"
+	"k8s.io/kubernetes/pkg/api/latest"
 	"k8s.io/kubernetes/pkg/api/rest"
+	"k8s.io/kubernetes/pkg/api/unversioned"
 	"k8s.io/kubernetes/pkg/apiserver"
 	"k8s.io/kubernetes/pkg/auth/authenticator"
 	"k8s.io/kubernetes/pkg/auth/authorizer"
@@ -128,6 +131,21 @@ type APIGroupVersionOverride struct {
 	ResourceOverrides map[string]bool
 }
 
+// Info about an API group.
+type APIGroupInfo struct {
+	GroupMeta latest.GroupMeta
+	// Info about the resources in this group. Its a map from version to resource to the storage.
+	VersionedResourcesStorageMap map[string]map[string]rest.Storage
+	// True, if this is the legacy group ("/v1").
+	IsLegacyGroup bool
+	// OptionsExternalVersion controls the APIVersion used for common objects in the
+	// schema like api.Status, api.DeleteOptions, and api.ListOptions. Other implementors may
+	// define a version "v1beta1" but want to use the Kubernetes "v1" internal objects.
+	// If nil, defaults to groupMeta.GroupVersion.
+	// TODO: Remove this when https://github.com/kubernetes/kubernetes/issues/19018 is fixed.
+	OptionsExternalVersion *unversioned.GroupVersion
+}
+
 // Config is a structure used to configure a GenericAPIServer.
 type Config struct {
 	StorageDestinations StorageDestinations
@@ -229,8 +247,8 @@ type GenericAPIServer struct {
 	enableSwaggerSupport     bool
 	enableProfiling          bool
 	enableWatchCache         bool
-	ApiPrefix                string
-	ApiGroupPrefix           string
+	APIPrefix                string
+	APIGroupPrefix           string
 	corsAllowedOriginList    []string
 	authenticator            authenticator.Request
 	authorizer               authorizer.Authorizer
@@ -351,8 +369,8 @@ func New(c *Config) *GenericAPIServer {
 		enableSwaggerSupport:     c.EnableSwaggerSupport,
 		enableProfiling:          c.EnableProfiling,
 		enableWatchCache:         c.EnableWatchCache,
-		ApiPrefix:                c.APIPrefix,
-		ApiGroupPrefix:           c.APIGroupPrefix,
+		APIPrefix:                c.APIPrefix,
+		APIGroupPrefix:           c.APIGroupPrefix,
 		corsAllowedOriginList:    c.CorsAllowedOriginList,
 		authenticator:            c.Authenticator,
 		authorizer:               c.Authorizer,
@@ -397,8 +415,8 @@ func New(c *Config) *GenericAPIServer {
 
 func (s *GenericAPIServer) NewRequestInfoResolver() *apiserver.RequestInfoResolver {
 	return &apiserver.RequestInfoResolver{
-		sets.NewString(strings.Trim(s.ApiPrefix, "/"), strings.Trim(s.ApiGroupPrefix, "/")), // all possible API prefixes
-		sets.NewString(strings.Trim(s.ApiPrefix, "/")),                                      // APIPrefixes that won't have groups (legacy)
+		sets.NewString(strings.Trim(s.APIPrefix, "/"), strings.Trim(s.APIGroupPrefix, "/")), // all possible API prefixes
+		sets.NewString(strings.Trim(s.APIPrefix, "/")),                                      // APIPrefixes that won't have groups (legacy)
 	}
 }
 
@@ -504,6 +522,102 @@ func (s *GenericAPIServer) init(c *Config) {
 	}
 }
 
+// Exposes the given group versions in API.
+func (s *GenericAPIServer) InstallAPIGroups(groupsInfo []APIGroupInfo) error {
+	for _, apiGroupInfo := range groupsInfo {
+		if err := s.installAPIGroup(&apiGroupInfo); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (s *GenericAPIServer) installAPIGroup(apiGroupInfo *APIGroupInfo) error {
+	apiPrefix := s.APIGroupPrefix
+	if apiGroupInfo.IsLegacyGroup {
+		apiPrefix = s.APIPrefix
+	}
+
+	// Install REST handlers for all the versions in this group.
+	apiVersions := []string{}
+	for _, groupVersion := range apiGroupInfo.GroupMeta.GroupVersions {
+		apiVersions = append(apiVersions, groupVersion.Version)
+
+		apiGroupVersion, err := s.getAPIGroupVersion(apiGroupInfo, groupVersion, apiPrefix)
+		if err != nil {
+			return err
+		}
+		if apiGroupInfo.OptionsExternalVersion != nil {
+			apiGroupVersion.OptionsExternalVersion = apiGroupInfo.OptionsExternalVersion
+		}
+
+		if err := apiGroupVersion.InstallREST(s.HandlerContainer); err != nil {
+			return fmt.Errorf("Unable to setup API %v: %v", apiGroupInfo, err)
+		}
+	}
+	// Install the version handler.
+	if apiGroupInfo.IsLegacyGroup {
+		// Add a handler at /api to enumerate the supported api versions.
+		apiserver.AddApiWebService(s.HandlerContainer, apiPrefix, apiVersions)
+	} else {
+		// Add a handler at /apis/<groupName> to enumerate all versions supported by this group.
+		apiVersionsForDiscovery := []unversioned.GroupVersionForDiscovery{}
+		for _, groupVersion := range apiGroupInfo.GroupMeta.GroupVersions {
+			apiVersionsForDiscovery = append(apiVersionsForDiscovery, unversioned.GroupVersionForDiscovery{
+				GroupVersion: groupVersion.String(),
+				Version:      groupVersion.Version,
+			})
+		}
+		preferedVersionForDiscovery := unversioned.GroupVersionForDiscovery{
+			GroupVersion: apiGroupInfo.GroupMeta.GroupVersion.String(),
+			Version:      apiGroupInfo.GroupMeta.GroupVersion.Version,
+		}
+		apiGroup := unversioned.APIGroup{
+			Name:             apiGroupInfo.GroupMeta.GroupVersion.Group,
+			Versions:         apiVersionsForDiscovery,
+			PreferredVersion: preferedVersionForDiscovery,
+		}
+		apiserver.AddGroupWebService(s.HandlerContainer, apiPrefix+"/"+apiGroup.Name, apiGroup)
+	}
+	apiserver.InstallServiceErrorHandler(s.HandlerContainer, s.NewRequestInfoResolver(), apiVersions)
+	return nil
+}
+
+func (s *GenericAPIServer) getAPIGroupVersion(apiGroupInfo *APIGroupInfo, groupVersion unversioned.GroupVersion, apiPrefix string) (*apiserver.APIGroupVersion, error) {
+	storage := make(map[string]rest.Storage)
+	for k, v := range apiGroupInfo.VersionedResourcesStorageMap[groupVersion.Version] {
+		storage[strings.ToLower(k)] = v
+	}
+	version, err := s.newAPIGroupVersion(apiGroupInfo.GroupMeta, groupVersion)
+	version.Root = apiPrefix
+	version.Storage = storage
+	return version, err
+}
+
+func (s *GenericAPIServer) newAPIGroupVersion(groupMeta latest.GroupMeta, groupVersion unversioned.GroupVersion) (*apiserver.APIGroupVersion, error) {
+	versionInterface, err := groupMeta.InterfacesFor(groupVersion)
+	if err != nil {
+		return nil, err
+	}
+	return &apiserver.APIGroupVersion{
+		RequestInfoResolver: s.NewRequestInfoResolver(),
+
+		Creater:   api.Scheme,
+		Convertor: api.Scheme,
+		Typer:     api.Scheme,
+
+		GroupVersion: groupVersion,
+		Linker:       groupMeta.SelfLinker,
+		Mapper:       groupMeta.RESTMapper,
+		Codec:        versionInterface.Codec,
+
+		Admit:   s.AdmissionControl,
+		Context: s.RequestContextMapper,
+
+		MinRequestTimeout: s.MinRequestTimeout,
+	}, nil
+}
+
 // InstallSwaggerAPI installs the /swaggerapi/ endpoint to allow schema discovery
 // and traversal.  It is optional to allow consumers of the Kubernetes GenericAPIServer to
 // register their own web services into the Kubernetes mux prior to initialization
diff --git a/pkg/genericapiserver/genericapiserver_test.go b/pkg/genericapiserver/genericapiserver_test.go
index b49c18a236c..b82bb7ab5bd 100644
--- a/pkg/genericapiserver/genericapiserver_test.go
+++ b/pkg/genericapiserver/genericapiserver_test.go
@@ -21,8 +21,13 @@ import (
 	"fmt"
 	"net"
 	"net/http"
+	"net/http/httptest"
 	"testing"
 
+	"k8s.io/kubernetes/pkg/api"
+	"k8s.io/kubernetes/pkg/api/latest"
+	"k8s.io/kubernetes/pkg/api/rest"
+	"k8s.io/kubernetes/pkg/apis/extensions"
 	"k8s.io/kubernetes/pkg/apiserver"
 	etcdtesting "k8s.io/kubernetes/pkg/storage/etcd/testing"
 	"k8s.io/kubernetes/pkg/util"
@@ -57,8 +62,8 @@ func TestNew(t *testing.T) {
 	assert.Equal(s.enableUISupport, config.EnableUISupport)
 	assert.Equal(s.enableSwaggerSupport, config.EnableSwaggerSupport)
 	assert.Equal(s.enableProfiling, config.EnableProfiling)
-	assert.Equal(s.ApiPrefix, config.APIPrefix)
-	assert.Equal(s.ApiGroupPrefix, config.APIGroupPrefix)
+	assert.Equal(s.APIPrefix, config.APIPrefix)
+	assert.Equal(s.APIGroupPrefix, config.APIGroupPrefix)
 	assert.Equal(s.corsAllowedOriginList, config.CorsAllowedOriginList)
 	assert.Equal(s.authenticator, config.Authenticator)
 	assert.Equal(s.authorizer, config.Authorizer)
@@ -80,6 +85,54 @@ func TestNew(t *testing.T) {
 	assert.Equal(s.ProxyTransport.(*http.Transport).TLSClientConfig, config.ProxyTLSClientConfig)
 }
 
+// Verifies that AddGroupVersions works as expected.
+func TestInstallAPIGroups(t *testing.T) {
+	_, etcdserver, config, assert := setUp(t)
+	defer etcdserver.Terminate(t)
+
+	config.ProxyDialer = func(network, addr string) (net.Conn, error) { return nil, nil }
+	config.ProxyTLSClientConfig = &tls.Config{}
+	config.APIPrefix = "/apiPrefix"
+	config.APIGroupPrefix = "/apiGroupPrefix"
+
+	s := New(&config)
+	apiGroupMeta := latest.GroupOrDie(api.GroupName)
+	extensionsGroupMeta := latest.GroupOrDie(extensions.GroupName)
+	apiGroupsInfo := []APIGroupInfo{
+		{
+			// legacy group version
+			GroupMeta:                    *apiGroupMeta,
+			VersionedResourcesStorageMap: map[string]map[string]rest.Storage{},
+			IsLegacyGroup:                true,
+		},
+		{
+			// extensions group version
+			GroupMeta:                    *extensionsGroupMeta,
+			VersionedResourcesStorageMap: map[string]map[string]rest.Storage{},
+			OptionsExternalVersion:       &apiGroupMeta.GroupVersion,
+		},
+	}
+	s.InstallAPIGroups(apiGroupsInfo)
+
+	server := httptest.NewServer(s.HandlerContainer.ServeMux)
+	validPaths := []string{
+		// "/api"
+		config.APIPrefix,
+		// "/api/v1"
+		config.APIPrefix + "/" + apiGroupMeta.GroupVersion.Version,
+		// "/apis/extensions"
+		config.APIGroupPrefix + "/" + extensionsGroupMeta.GroupVersion.Group,
+		// "/apis/extensions/v1beta1"
+		config.APIGroupPrefix + "/" + extensionsGroupMeta.GroupVersion.String(),
+	}
+	for _, path := range validPaths {
+		_, err := http.Get(server.URL + path)
+		if !assert.NoError(err) {
+			t.Errorf("unexpected error: %v, for path: %s", err, path)
+		}
+	}
+}
+
 // TestNewHandlerContainer verifies that NewHandlerContainer uses the
 // mux provided
 func TestNewHandlerContainer(t *testing.T) {
diff --git a/pkg/master/master.go b/pkg/master/master.go
index 8b4ec7c286c..4a767fa1d44 100644
--- a/pkg/master/master.go
+++ b/pkg/master/master.go
@@ -30,8 +30,6 @@ import (
 	"k8s.io/kubernetes/pkg/api/latest"
 	"k8s.io/kubernetes/pkg/api/rest"
 	"k8s.io/kubernetes/pkg/api/unversioned"
-	apiutil "k8s.io/kubernetes/pkg/api/util"
-	"k8s.io/kubernetes/pkg/api/v1"
 	"k8s.io/kubernetes/pkg/apis/extensions"
 	"k8s.io/kubernetes/pkg/apiserver"
 	"k8s.io/kubernetes/pkg/genericapiserver"
@@ -159,14 +157,8 @@ func New(c *Config) *Master {
 }
 
 func (m *Master) InstallAPIs(c *Config) {
-	apiVersions := []string{}
-	// Install v1 unless disabled.
-	if !m.ApiGroupVersionOverrides["api/v1"].Disable {
-		if err := m.api_v1(c).InstallREST(m.HandlerContainer); err != nil {
-			glog.Fatalf("Unable to setup API v1: %v", err)
-		}
-		apiVersions = append(apiVersions, "v1")
-	}
+	apiGroupsInfo := []genericapiserver.APIGroupInfo{}
+
 	// Run the tunnel.
 	healthzChecks := []healthz.HealthzChecker{}
 	if m.tunneler != nil {
@@ -180,12 +172,24 @@ func (m *Master) InstallAPIs(c *Config) {
 
 	// TODO(nikhiljindal): Refactor generic parts of support services (like /versions) to genericapiserver.
 	apiserver.InstallSupport(m.MuxHelper, m.RootWebService, c.EnableProfiling, healthzChecks...)
+
+	// Install v1 unless disabled.
+	if !m.ApiGroupVersionOverrides["api/v1"].Disable {
+		// Install v1 API.
+		m.initV1ResourcesStorage(c)
+		apiGroupInfo := genericapiserver.APIGroupInfo{
+			GroupMeta: *latest.GroupOrDie(api.GroupName),
+			VersionedResourcesStorageMap: map[string]map[string]rest.Storage{
+				"v1": m.v1ResourcesStorage,
+			},
+			IsLegacyGroup: true,
+		}
+		apiGroupsInfo = append(apiGroupsInfo, apiGroupInfo)
+	}
+
 	// Install root web services
 	m.HandlerContainer.Add(m.RootWebService)
 
-	apiserver.AddApiWebService(m.HandlerContainer, c.APIPrefix, apiVersions)
-	apiserver.InstallServiceErrorHandler(m.HandlerContainer, m.NewRequestInfoResolver(), apiVersions)
-
 	// allGroups records all supported groups at /apis
 	allGroups := []unversioned.APIGroup{}
 	// Install extensions unless disabled.
@@ -193,33 +197,41 @@ func (m *Master) InstallAPIs(c *Config) {
 		m.thirdPartyStorage = c.StorageDestinations.APIGroups[extensions.GroupName].Default
 		m.thirdPartyResources = map[string]thirdPartyEntry{}
 
-		expVersion := m.experimental(c)
-
-		if err := expVersion.InstallREST(m.HandlerContainer); err != nil {
-			glog.Fatalf("Unable to setup experimental api: %v", err)
-		}
-		g, err := latest.Group(extensions.GroupName)
-		if err != nil {
-			glog.Fatalf("Unable to setup experimental api: %v", err)
-		}
-		expAPIVersions := []unversioned.GroupVersionForDiscovery{
-			{
-				GroupVersion: expVersion.GroupVersion.String(),
-				Version:      expVersion.GroupVersion.Version,
-			},
-		}
-		storageVersion, found := c.StorageVersions[g.GroupVersion.Group]
+		extensionResources := m.getExtensionResources(c)
+		extensionsGroupMeta := latest.GroupOrDie(extensions.GroupName)
+		// Update the prefered version as per StorageVersions in the config.
+		storageVersion, found := c.StorageVersions[extensionsGroupMeta.GroupVersion.Group]
 		if !found {
-			glog.Fatalf("Couldn't find storage version of group %v", g.GroupVersion.Group)
+			glog.Fatalf("Couldn't find storage version of group %v", extensionsGroupMeta.GroupVersion.Group)
+		}
+		preferedGroupVersion, err := unversioned.ParseGroupVersion(storageVersion)
+		if err != nil {
+			glog.Fatalf("Error in parsing group version %s: %v", storageVersion, err)
+		}
+		extensionsGroupMeta.GroupVersion = preferedGroupVersion
+
+		apiGroupInfo := genericapiserver.APIGroupInfo{
+			GroupMeta: *extensionsGroupMeta,
+			VersionedResourcesStorageMap: map[string]map[string]rest.Storage{
+				"v1beta1": extensionResources,
+			},
+			OptionsExternalVersion: &latest.GroupOrDie(api.GroupName).GroupVersion,
+		}
+		apiGroupsInfo = append(apiGroupsInfo, apiGroupInfo)
+
+		extensionsGVForDiscovery := unversioned.GroupVersionForDiscovery{
+			GroupVersion: extensionsGroupMeta.GroupVersion.String(),
+			Version:      extensionsGroupMeta.GroupVersion.Version,
 		}
 		group := unversioned.APIGroup{
-			Name:             g.GroupVersion.Group,
-			Versions:         expAPIVersions,
-			PreferredVersion: unversioned.GroupVersionForDiscovery{GroupVersion: storageVersion, Version: apiutil.GetVersion(storageVersion)},
+			Name:             extensionsGroupMeta.GroupVersion.Group,
+			Versions:         []unversioned.GroupVersionForDiscovery{extensionsGVForDiscovery},
+			PreferredVersion: extensionsGVForDiscovery,
 		}
-		apiserver.AddGroupWebService(m.HandlerContainer, c.APIGroupPrefix+"/"+latest.GroupOrDie(extensions.GroupName).GroupVersion.Group, group)
 		allGroups = append(allGroups, group)
-		apiserver.InstallServiceErrorHandler(m.HandlerContainer, m.NewRequestInfoResolver(), []string{expVersion.GroupVersion.String()})
+	}
+	if err := m.InstallAPIGroups(apiGroupsInfo); err != nil {
+		glog.Fatalf("Error in registering group versions: %v", err)
 	}
 
 	// This should be done after all groups are registered
@@ -398,39 +410,6 @@ func (m *Master) getServersToValidate(c *Config) map[string]apiserver.Server {
 	return serversToValidate
 }
 
-func (m *Master) defaultAPIGroupVersion() *apiserver.APIGroupVersion {
-	return &apiserver.APIGroupVersion{
-		Root:                m.ApiPrefix,
-		RequestInfoResolver: m.NewRequestInfoResolver(),
-
-		Mapper: latest.GroupOrDie(api.GroupName).RESTMapper,
-
-		Creater:   api.Scheme,
-		Convertor: api.Scheme,
-		Typer:     api.Scheme,
-		Linker:    latest.GroupOrDie(api.GroupName).SelfLinker,
-
-		Admit:   m.AdmissionControl,
-		Context: m.RequestContextMapper,
-
-		MinRequestTimeout: m.MinRequestTimeout,
-	}
-}
-
-// api_v1 returns the resources and codec for API version v1.
-func (m *Master) api_v1(c *Config) *apiserver.APIGroupVersion {
-	m.initV1ResourcesStorage(c)
-	storage := make(map[string]rest.Storage)
-	for k, v := range m.v1ResourcesStorage {
-		storage[strings.ToLower(k)] = v
-	}
-	version := m.defaultAPIGroupVersion()
-	version.Storage = storage
-	version.GroupVersion = unversioned.GroupVersion{Version: "v1"}
-	version.Codec = v1.Codec
-	return version
-}
-
 // HasThirdPartyResource returns true if a particular third party resource currently installed.
 func (m *Master) HasThirdPartyResource(rsrc *extensions.ThirdPartyResource) (bool, error) {
 	_, group, err := thirdpartyresourcedata.ExtractApiGroupAndKind(rsrc)
@@ -575,8 +554,8 @@ func (m *Master) thirdpartyapi(group, kind, version string) *apiserver.APIGroupV
 	}
 }
 
-// experimental returns the resources and codec for the experimental api
-func (m *Master) experimental(c *Config) *apiserver.APIGroupVersion {
+// getExperimentalResources returns the resources for extenstions api
+func (m *Master) getExtensionResources(c *Config) map[string]rest.Storage {
 	// All resources except these are disabled by default.
 	enabledResources := sets.NewString("jobs", "horizontalpodautoscalers", "ingresses")
 	resourceOverrides := m.ApiGroupVersionOverrides["extensions/v1beta1"].ResourceOverrides
@@ -640,30 +619,7 @@ func (m *Master) experimental(c *Config) *apiserver.APIGroupVersion {
 		storage["ingresses"] = ingressStorage
 		storage["ingresses/status"] = ingressStatusStorage
 	}
-
-	extensionsGroup := latest.GroupOrDie(extensions.GroupName)
-	optionsExternalVersion := latest.GroupOrDie(api.GroupName).GroupVersion
-
-	return &apiserver.APIGroupVersion{
-		Root:                m.ApiGroupPrefix,
-		RequestInfoResolver: m.NewRequestInfoResolver(),
-
-		Creater:   api.Scheme,
-		Convertor: api.Scheme,
-		Typer:     api.Scheme,
-
-		Mapper:                 extensionsGroup.RESTMapper,
-		Codec:                  extensionsGroup.Codec,
-		Linker:                 extensionsGroup.SelfLinker,
-		Storage:                storage,
-		GroupVersion:           extensionsGroup.GroupVersion,
-		OptionsExternalVersion: &optionsExternalVersion,
-
-		Admit:   m.AdmissionControl,
-		Context: m.RequestContextMapper,
-
-		MinRequestTimeout: m.MinRequestTimeout,
-	}
+	return storage
 }
 
 // findExternalAddress returns ExternalIP of provided node with fallback to LegacyHostIP.
diff --git a/pkg/master/master_test.go b/pkg/master/master_test.go
index 3abc983b4a9..b1d2b77f07a 100644
--- a/pkg/master/master_test.go
+++ b/pkg/master/master_test.go
@@ -30,11 +30,9 @@ import (
 	"testing"
 
 	"k8s.io/kubernetes/pkg/api"
-	"k8s.io/kubernetes/pkg/api/latest"
 	"k8s.io/kubernetes/pkg/api/testapi"
 	"k8s.io/kubernetes/pkg/api/unversioned"
 	apiutil "k8s.io/kubernetes/pkg/api/util"
-	"k8s.io/kubernetes/pkg/api/v1"
 	"k8s.io/kubernetes/pkg/apis/extensions"
 	"k8s.io/kubernetes/pkg/genericapiserver"
 	"k8s.io/kubernetes/pkg/kubelet/client"
@@ -102,8 +100,8 @@ func TestNew(t *testing.T) {
 	// Verify many of the variables match their config counterparts
 	assert.Equal(master.enableCoreControllers, config.EnableCoreControllers)
 	assert.Equal(master.tunneler, config.Tunneler)
-	assert.Equal(master.ApiPrefix, config.APIPrefix)
-	assert.Equal(master.ApiGroupPrefix, config.APIGroupPrefix)
+	assert.Equal(master.APIPrefix, config.APIPrefix)
+	assert.Equal(master.APIGroupPrefix, config.APIGroupPrefix)
 	assert.Equal(master.ApiGroupVersionOverrides, config.APIGroupVersionOverrides)
 	assert.Equal(master.RequestContextMapper, config.RequestContextMapper)
 	assert.Equal(master.MasterCount, config.MasterCount)
@@ -160,35 +158,6 @@ func TestFindExternalAddress(t *testing.T) {
 	assert.Error(err, "expected findExternalAddress to fail on a node with missing ip information")
 }
 
-// TestApi_v1 verifies that the unexported api_v1 function does indeed
-// utilize the correct Version and Codec.
-func TestApi_v1(t *testing.T) {
-	_, etcdserver, config, assert := setUp(t)
-	defer etcdserver.Terminate(t)
-
-	//	config.KubeletClient = client.FakeKubeletClient{}
-
-	config.ProxyDialer = func(network, addr string) (net.Conn, error) { return nil, nil }
-	config.ProxyTLSClientConfig = &tls.Config{}
-
-	s := genericapiserver.New(config.Config)
-	master := &Master{
-		GenericAPIServer: s,
-		tunneler:         config.Tunneler,
-	}
-
-	version := master.api_v1(&config)
-	assert.Equal(unversioned.GroupVersion{Version: "v1"}, version.GroupVersion, "Version was not v1: %s", version.GroupVersion)
-	assert.Equal(v1.Codec, version.Codec, "version.Codec was not for v1: %s", version.Codec)
-	// Verify that version storage has all the resources.
-	for k, v := range master.v1ResourcesStorage {
-		k = strings.ToLower(k)
-		val, ok := version.Storage[k]
-		assert.True(ok, "ok: %s", ok)
-		assert.Equal(val, v)
-	}
-}
-
 // TestNewBootstrapController verifies master fields are properly copied into controller
 func TestNewBootstrapController(t *testing.T) {
 	// Tests a subset of inputs to ensure they are set properly in the controller
@@ -248,36 +217,6 @@ func TestControllerServicePorts(t *testing.T) {
 	assert.Equal(1010, controller.ExtraServicePorts[1].Port)
 }
 
-// TestDefaultAPIGroupVersion verifies that the unexported defaultAPIGroupVersion
-// creates the expected APIGroupVersion based off of master.
-func TestDefaultAPIGroupVersion(t *testing.T) {
-	master, etcdserver, _, assert := setUp(t)
-	defer etcdserver.Terminate(t)
-
-	apiGroup := master.defaultAPIGroupVersion()
-
-	assert.Equal(apiGroup.Root, master.ApiPrefix)
-	assert.Equal(apiGroup.Admit, master.AdmissionControl)
-	assert.Equal(apiGroup.Context, master.RequestContextMapper)
-	assert.Equal(apiGroup.MinRequestTimeout, master.MinRequestTimeout)
-}
-
-// TestExpapi verifies that the unexported exapi creates
-// the an experimental unversioned.APIGroupVersion.
-func TestExpapi(t *testing.T) {
-	master, etcdserver, config, assert := setUp(t)
-	defer etcdserver.Terminate(t)
-
-	extensionsGroupMeta := latest.GroupOrDie(extensions.GroupName)
-
-	expAPIGroup := master.experimental(&config)
-	assert.Equal(expAPIGroup.Root, master.ApiGroupPrefix)
-	assert.Equal(expAPIGroup.Mapper, extensionsGroupMeta.RESTMapper)
-	assert.Equal(expAPIGroup.Codec, extensionsGroupMeta.Codec)
-	assert.Equal(expAPIGroup.Linker, extensionsGroupMeta.SelfLinker)
-	assert.Equal(expAPIGroup.GroupVersion, extensionsGroupMeta.GroupVersion)
-}
-
 // TestGetNodeAddresses verifies that proper results are returned
 // when requesting node addresses.
 func TestGetNodeAddresses(t *testing.T) {