diff --git a/packages/SystemUI/Android.bp b/packages/SystemUI/Android.bp
index 851f976..07f7ecd 100644
--- a/packages/SystemUI/Android.bp
+++ b/packages/SystemUI/Android.bp
@@ -409,6 +409,7 @@
         "mockito-target-extended-minus-junit4",
         "androidx.test.ext.junit",
         "androidx.test.ext.truth",
+        "kotlin-test",
     ],
     libs: [
         "android.test.runner",
diff --git a/packages/SystemUI/src/com/android/keyguard/KeyguardStatusViewController.java b/packages/SystemUI/src/com/android/keyguard/KeyguardStatusViewController.java
index 73b4c5f..757022d 100644
--- a/packages/SystemUI/src/com/android/keyguard/KeyguardStatusViewController.java
+++ b/packages/SystemUI/src/com/android/keyguard/KeyguardStatusViewController.java
@@ -543,7 +543,8 @@
 
         @Nullable
         @Override
-        public Animator createAnimator(ViewGroup sceneRoot, @Nullable TransitionValues startValues,
+        public Animator createAnimator(@NonNull ViewGroup sceneRoot,
+                @Nullable TransitionValues startValues,
                 @Nullable TransitionValues endValues) {
             if (startValues == null || endValues == null) {
                 return null;
diff --git a/packages/SystemUI/tests/src/com/android/keyguard/KeyguardPatternViewControllerTest.kt b/packages/SystemUI/tests/src/com/android/keyguard/KeyguardPatternViewControllerTest.kt
index cb18229..9f7ab7b 100644
--- a/packages/SystemUI/tests/src/com/android/keyguard/KeyguardPatternViewControllerTest.kt
+++ b/packages/SystemUI/tests/src/com/android/keyguard/KeyguardPatternViewControllerTest.kt
@@ -150,7 +150,7 @@
     private fun getPatternTopGuideline(): Float {
         val cs = ConstraintSet()
         val container =
-            mKeyguardPatternView.findViewById(R.id.pattern_container) as ConstraintLayout
+            mKeyguardPatternView.requireViewById(R.id.pattern_container) as ConstraintLayout
         cs.clone(container)
         return cs.getConstraint(R.id.pattern_top_guideline).layout.guidePercent
     }
diff --git a/packages/SystemUI/tests/src/com/android/keyguard/KeyguardPinViewControllerTest.kt b/packages/SystemUI/tests/src/com/android/keyguard/KeyguardPinViewControllerTest.kt
index 4dc7652..309d9e0 100644
--- a/packages/SystemUI/tests/src/com/android/keyguard/KeyguardPinViewControllerTest.kt
+++ b/packages/SystemUI/tests/src/com/android/keyguard/KeyguardPinViewControllerTest.kt
@@ -114,7 +114,7 @@
 
         objectKeyguardPINView =
             View.inflate(mContext, R.layout.keyguard_pin_view, null)
-                .findViewById(R.id.keyguard_pin_view) as KeyguardPINView
+                .requireViewById(R.id.keyguard_pin_view) as KeyguardPINView
     }
 
     private fun constructPinViewController(
@@ -175,7 +175,7 @@
 
     private fun getPinTopGuideline(): Float {
         val cs = ConstraintSet()
-        val container = objectKeyguardPINView.findViewById(R.id.pin_container) as ConstraintLayout
+        val container = objectKeyguardPINView.requireViewById(R.id.pin_container) as ConstraintLayout
         cs.clone(container)
         return cs.getConstraint(R.id.pin_pad_top_guideline).layout.guidePercent
     }
diff --git a/packages/SystemUI/tests/src/com/android/keyguard/KeyguardStatusViewTest.kt b/packages/SystemUI/tests/src/com/android/keyguard/KeyguardStatusViewTest.kt
index f8262d4..210f3cb 100644
--- a/packages/SystemUI/tests/src/com/android/keyguard/KeyguardStatusViewTest.kt
+++ b/packages/SystemUI/tests/src/com/android/keyguard/KeyguardStatusViewTest.kt
@@ -21,9 +21,9 @@
 
     private lateinit var keyguardStatusView: KeyguardStatusView
     private val mediaView: View
-        get() = keyguardStatusView.findViewById(R.id.status_view_media_container)
+        get() = keyguardStatusView.requireViewById(R.id.status_view_media_container)
     private val statusViewContainer: ViewGroup
-        get() = keyguardStatusView.findViewById(R.id.status_view_container)
+        get() = keyguardStatusView.requireViewById(R.id.status_view_container)
     private val childrenExcludingMedia
         get() = statusViewContainer.children.filter { it != mediaView }
 
diff --git a/packages/SystemUI/tests/src/com/android/keyguard/SplitShadeTransitionAdapterTest.kt b/packages/SystemUI/tests/src/com/android/keyguard/SplitShadeTransitionAdapterTest.kt
index 6fe8892..9f9b9a4 100644
--- a/packages/SystemUI/tests/src/com/android/keyguard/SplitShadeTransitionAdapterTest.kt
+++ b/packages/SystemUI/tests/src/com/android/keyguard/SplitShadeTransitionAdapterTest.kt
@@ -19,9 +19,11 @@
 import android.testing.AndroidTestingRunner
 import android.transition.TransitionValues
 import android.view.View
+import android.view.ViewGroup
 import androidx.test.filters.SmallTest
 import com.android.keyguard.KeyguardStatusViewController.SplitShadeTransitionAdapter
 import com.android.systemui.SysuiTestCase
+import com.android.systemui.util.mockito.mock
 import com.google.common.truth.Truth.assertThat
 import org.junit.Before
 import org.junit.Test
@@ -84,5 +86,5 @@
     startValues: TransitionValues?,
     endValues: TransitionValues?
 ): Animator? {
-    return createAnimator(/* sceneRoot= */ null, startValues, endValues)
+    return createAnimator(/* sceneRoot= */ mock(), startValues, endValues)
 }
diff --git a/packages/SystemUI/tests/src/com/android/systemui/animation/DialogLaunchAnimatorTest.kt b/packages/SystemUI/tests/src/com/android/systemui/animation/DialogLaunchAnimatorTest.kt
index 316de59..2233e322 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/animation/DialogLaunchAnimatorTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/animation/DialogLaunchAnimatorTest.kt
@@ -70,7 +70,7 @@
         assertTrue(dialog.isShowing)
 
         // The dialog is now fullscreen.
-        val window = dialog.window
+        val window = checkNotNull(dialog.window)
         val decorView = window.decorView as DecorView
         assertEquals(MATCH_PARENT, window.attributes.width)
         assertEquals(MATCH_PARENT, window.attributes.height)
@@ -172,14 +172,15 @@
         // Important: the power menu animation relies on this behavior to know when to animate (see
         // http://ag/16774605).
         val dialog = runOnMainThreadAndWaitForIdleSync { TestDialog(context) }
-        dialog.window.setWindowAnimations(0)
-        assertEquals(0, dialog.window.attributes.windowAnimations)
+        val window = checkNotNull(dialog.window)
+        window.setWindowAnimations(0)
+        assertEquals(0, window.attributes.windowAnimations)
 
         val touchSurface = createTouchSurface()
         runOnMainThreadAndWaitForIdleSync {
             dialogLaunchAnimator.showFromView(dialog, touchSurface)
         }
-        assertNotEquals(0, dialog.window.attributes.windowAnimations)
+        assertNotEquals(0, window.attributes.windowAnimations)
     }
 
     @Test
@@ -351,13 +352,14 @@
 
         init {
             // We need to set the window type for dialogs shown by SysUI, otherwise WM will throw.
-            window.setType(WindowManager.LayoutParams.TYPE_STATUS_BAR_SUB_PANEL)
+            checkNotNull(window).setType(WindowManager.LayoutParams.TYPE_STATUS_BAR_SUB_PANEL)
         }
 
         override fun onCreate(savedInstanceState: Bundle?) {
             super.onCreate(savedInstanceState)
             setContentView(contentView)
 
+            val window = checkNotNull(window)
             window.setLayout(DIALOG_WIDTH, DIALOG_HEIGHT)
             window.setBackgroundDrawable(windowBackground)
         }
diff --git a/packages/SystemUI/tests/src/com/android/systemui/charging/WiredChargingRippleControllerTest.kt b/packages/SystemUI/tests/src/com/android/systemui/charging/WiredChargingRippleControllerTest.kt
index d6cafcb..5a5c058 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/charging/WiredChargingRippleControllerTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/charging/WiredChargingRippleControllerTest.kt
@@ -211,7 +211,7 @@
                 context.resources.getFloat(R.dimen.physical_charger_port_location_normalized_y)
         val expectedCenterX: Float
         val expectedCenterY: Float
-        when (context.display.rotation) {
+        when (checkNotNull(context.display).rotation) {
             Surface.ROTATION_90 -> {
                 expectedCenterX = width * normalizedPortPosY
                 expectedCenterY = height * (1 - normalizedPortPosX)
diff --git a/packages/SystemUI/tests/src/com/android/systemui/controls/ui/ControlViewHolderTest.kt b/packages/SystemUI/tests/src/com/android/systemui/controls/ui/ControlViewHolderTest.kt
index 42f28c8..2ae342a 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/controls/ui/ControlViewHolderTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/controls/ui/ControlViewHolderTest.kt
@@ -125,7 +125,7 @@
             control
         )
         cvh.bindData(cws, false)
-        val chevronIcon = baseLayout.findViewById<View>(R.id.chevron_icon)
+        val chevronIcon = baseLayout.requireViewById<View>(R.id.chevron_icon)
 
         assertThat(chevronIcon.visibility).isEqualTo(View.VISIBLE)
     }
@@ -138,4 +138,4 @@
 private val DRAWABLE = GradientDrawable()
 private val COLOR = ColorStateList.valueOf(0xffff00)
 private val DEFAULT_CONTROL = Control.StatelessBuilder(
-        CONTROL_ID, mock(PendingIntent::class.java)).build()
\ No newline at end of file
+        CONTROL_ID, mock(PendingIntent::class.java)).build()
diff --git a/packages/SystemUI/tests/src/com/android/systemui/controls/ui/ControlsUiControllerImplTest.kt b/packages/SystemUI/tests/src/com/android/systemui/controls/ui/ControlsUiControllerImplTest.kt
index fcd6568..a400ff9 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/controls/ui/ControlsUiControllerImplTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/controls/ui/ControlsUiControllerImplTest.kt
@@ -365,7 +365,8 @@
         val selectedItems =
             listOf(
                 SelectedItem.StructureItem(
-                    StructureInfo(ComponentName.unflattenFromString("pkg/.cls1"), "a", ArrayList())
+                    StructureInfo(checkNotNull(ComponentName.unflattenFromString("pkg/.cls1")),
+                        "a", ArrayList())
                 ),
             )
         preferredPanelRepository.setSelectedComponent(
diff --git a/packages/SystemUI/tests/src/com/android/systemui/keyguard/data/repository/DeviceEntryFaceAuthRepositoryTest.kt b/packages/SystemUI/tests/src/com/android/systemui/keyguard/data/repository/DeviceEntryFaceAuthRepositoryTest.kt
index 85ee0e4..a3e264a 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/keyguard/data/repository/DeviceEntryFaceAuthRepositoryTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/keyguard/data/repository/DeviceEntryFaceAuthRepositoryTest.kt
@@ -332,9 +332,6 @@
                 )
                 .isFalse()
 
-            whenever(faceManager.sensorPropertiesInternal).thenReturn(null)
-            assertThat(createDeviceEntryFaceAuthRepositoryImpl().isDetectionSupported).isFalse()
-
             whenever(faceManager.sensorPropertiesInternal).thenReturn(listOf())
             assertThat(createDeviceEntryFaceAuthRepositoryImpl().isDetectionSupported).isFalse()
 
diff --git a/packages/SystemUI/tests/src/com/android/systemui/media/controls/ui/MediaCarouselControllerTest.kt b/packages/SystemUI/tests/src/com/android/systemui/media/controls/ui/MediaCarouselControllerTest.kt
index 5b8272b0..064bebd 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/media/controls/ui/MediaCarouselControllerTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/media/controls/ui/MediaCarouselControllerTest.kt
@@ -132,7 +132,7 @@
     @Before
     fun setup() {
         MockitoAnnotations.initMocks(this)
-        context.resources.configuration.locales = LocaleList(Locale.US, Locale.UK)
+        context.resources.configuration.setLocales(LocaleList(Locale.US, Locale.UK))
         transitionRepository = FakeKeyguardTransitionRepository()
         mediaCarouselController =
             MediaCarouselController(
@@ -730,13 +730,13 @@
 
     @Test
     fun testOnLocaleListChanged_playersAreAddedBack() {
-        context.resources.configuration.locales = LocaleList(Locale.US, Locale.UK, Locale.CANADA)
+        context.resources.configuration.setLocales(LocaleList(Locale.US, Locale.UK, Locale.CANADA))
         testConfigurationChange(configListener.value::onLocaleListChanged)
 
         verify(pageIndicator, never()).tintList =
             ColorStateList.valueOf(context.getColor(R.color.media_paging_indicator))
 
-        context.resources.configuration.locales = LocaleList(Locale.UK, Locale.US, Locale.CANADA)
+        context.resources.configuration.setLocales(LocaleList(Locale.UK, Locale.US, Locale.CANADA))
         testConfigurationChange(configListener.value::onLocaleListChanged)
 
         verify(pageIndicator).tintList =
diff --git a/packages/SystemUI/tests/src/com/android/systemui/mediaprojection/appselector/view/TaskPreviewSizeProviderTest.kt b/packages/SystemUI/tests/src/com/android/systemui/mediaprojection/appselector/view/TaskPreviewSizeProviderTest.kt
index ee3b80a..906420d 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/mediaprojection/appselector/view/TaskPreviewSizeProviderTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/mediaprojection/appselector/view/TaskPreviewSizeProviderTest.kt
@@ -123,7 +123,7 @@
 
     private fun givenDisplay(width: Int, height: Int, isTablet: Boolean = false) {
         val bounds = Rect(0, 0, width, height)
-        val windowMetrics = WindowMetrics(bounds, null)
+        val windowMetrics = WindowMetrics(bounds, { null }, 1.0f)
         whenever(windowManager.maximumWindowMetrics).thenReturn(windowMetrics)
         whenever(windowManager.currentWindowMetrics).thenReturn(windowMetrics)
 
diff --git a/packages/SystemUI/tests/src/com/android/systemui/mediaprojection/taskswitcher/data/repository/MediaProjectionManagerRepositoryTest.kt b/packages/SystemUI/tests/src/com/android/systemui/mediaprojection/taskswitcher/data/repository/MediaProjectionManagerRepositoryTest.kt
index 3a74c72..7bd97ce 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/mediaprojection/taskswitcher/data/repository/MediaProjectionManagerRepositoryTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/mediaprojection/taskswitcher/data/repository/MediaProjectionManagerRepositoryTest.kt
@@ -108,20 +108,6 @@
         }
 
     @Test
-    fun mediaProjectionState_onSessionSet_tokenNull_emitsEntireScreen() =
-        testScope.runTest {
-            val state by collectLastValue(repo.mediaProjectionState)
-            runCurrent()
-
-            fakeMediaProjectionManager.dispatchOnSessionSet(
-                session =
-                    ContentRecordingSession.createTaskSession(/* taskWindowContainerToken= */ null)
-            )
-
-            assertThat(state).isEqualTo(MediaProjectionState.EntireScreen)
-        }
-
-    @Test
     fun mediaProjectionState_sessionSet_taskWithToken_noMatchingRunningTask_emitsEntireScreen() =
         testScope.runTest {
             val state by collectLastValue(repo.mediaProjectionState)
diff --git a/packages/SystemUI/tests/src/com/android/systemui/navigationbar/gestural/BackPanelControllerTest.kt b/packages/SystemUI/tests/src/com/android/systemui/navigationbar/gestural/BackPanelControllerTest.kt
index fab1de0..2d3dc58 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/navigationbar/gestural/BackPanelControllerTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/navigationbar/gestural/BackPanelControllerTest.kt
@@ -73,7 +73,7 @@
                 context,
                 windowManager,
                 ViewConfiguration.get(context),
-                Handler.createAsync(Looper.myLooper()),
+                Handler.createAsync(checkNotNull(Looper.myLooper())),
                 vibratorHelper,
                 configurationController,
                 latencyTracker,
diff --git a/packages/SystemUI/tests/src/com/android/systemui/notetask/NoteTaskControllerTest.kt b/packages/SystemUI/tests/src/com/android/systemui/notetask/NoteTaskControllerTest.kt
index d933b57..1536c17 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/notetask/NoteTaskControllerTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/notetask/NoteTaskControllerTest.kt
@@ -69,6 +69,7 @@
 import com.android.wm.shell.bubbles.Bubbles
 import com.google.common.truth.Truth.assertThat
 import java.util.Optional
+import kotlin.test.assertNotNull
 import kotlinx.coroutines.ExperimentalCoroutinesApi
 import kotlinx.coroutines.test.TestScope
 import kotlinx.coroutines.test.UnconfinedTestDispatcher
@@ -672,7 +673,7 @@
             extras().bool(EXTRA_USE_STYLUS_MODE).isTrue()
         }
         iconCaptor.value?.let { icon ->
-            assertThat(icon).isNotNull()
+            assertNotNull(icon)
             assertThat(icon.resId).isEqualTo(R.drawable.ic_note_task_shortcut_widget)
         }
     }
@@ -755,7 +756,7 @@
             assertThat(shortLabel).isEqualTo(NOTE_TASK_SHORT_LABEL)
             assertThat(longLabel).isEqualTo(NOTE_TASK_LONG_LABEL)
             assertThat(isLongLived).isEqualTo(true)
-            assertThat(icon.resId).isEqualTo(R.drawable.ic_note_task_shortcut_widget)
+            assertThat(icon?.resId).isEqualTo(R.drawable.ic_note_task_shortcut_widget)
             assertThat(extras?.getString(EXTRA_SHORTCUT_BADGE_OVERRIDE_PACKAGE))
                 .isEqualTo(NOTE_TASK_PACKAGE_NAME)
         }
diff --git a/packages/SystemUI/tests/src/com/android/systemui/screenrecord/ScreenRecordPermissionDialogTest.kt b/packages/SystemUI/tests/src/com/android/systemui/screenrecord/ScreenRecordPermissionDialogTest.kt
index 07feedf..ad6909d 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/screenrecord/ScreenRecordPermissionDialogTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/screenrecord/ScreenRecordPermissionDialogTest.kt
@@ -126,6 +126,7 @@
 
     private fun onSpinnerItemSelected(position: Int) {
         val spinner = dialog.requireViewById<Spinner>(R.id.screen_share_mode_spinner)
-        spinner.onItemSelectedListener.onItemSelected(spinner, mock(), position, /* id= */ 0)
+        checkNotNull(spinner.onItemSelectedListener)
+            .onItemSelected(spinner, mock(), position, /* id= */ 0)
     }
 }
diff --git a/packages/SystemUI/tests/src/com/android/systemui/shade/NotificationsQSContainerControllerLegacyTest.kt b/packages/SystemUI/tests/src/com/android/systemui/shade/NotificationsQSContainerControllerLegacyTest.kt
index 112a09b..577b6e0 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/shade/NotificationsQSContainerControllerLegacyTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/shade/NotificationsQSContainerControllerLegacyTest.kt
@@ -584,7 +584,7 @@
     private fun emptyInsets() = mock(WindowInsets::class.java)
 
     private fun WindowInsets.withCutout(): WindowInsets {
-        whenever(displayCutout.safeInsetBottom).thenReturn(CUTOUT_HEIGHT)
+        whenever(checkNotNull(displayCutout).safeInsetBottom).thenReturn(CUTOUT_HEIGHT)
         return this
     }
 
diff --git a/packages/SystemUI/tests/src/com/android/systemui/shade/NotificationsQSContainerControllerTest.kt b/packages/SystemUI/tests/src/com/android/systemui/shade/NotificationsQSContainerControllerTest.kt
index 8d3c4b2..405199e 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/shade/NotificationsQSContainerControllerTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/shade/NotificationsQSContainerControllerTest.kt
@@ -567,7 +567,7 @@
     private fun emptyInsets() = mock(WindowInsets::class.java)
 
     private fun WindowInsets.withCutout(): WindowInsets {
-        whenever(displayCutout.safeInsetBottom).thenReturn(CUTOUT_HEIGHT)
+        whenever(checkNotNull(displayCutout).safeInsetBottom).thenReturn(CUTOUT_HEIGHT)
         return this
     }
 
diff --git a/packages/SystemUI/tests/src/com/android/systemui/smartspace/DreamSmartspaceControllerTest.kt b/packages/SystemUI/tests/src/com/android/systemui/smartspace/DreamSmartspaceControllerTest.kt
index 58b44ae..19dc72d 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/smartspace/DreamSmartspaceControllerTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/smartspace/DreamSmartspaceControllerTest.kt
@@ -236,7 +236,8 @@
         `when`(precondition.conditionsMet()).thenReturn(true)
 
         // Given a session is created
-        val weatherView = controller.buildAndConnectWeatherView(fakeParent, customView)
+        val weatherView =
+            checkNotNull(controller.buildAndConnectWeatherView(fakeParent, customView))
         controller.stateChangeListener.onViewAttachedToWindow(weatherView)
         verify(smartspaceManager).createSmartspaceSession(any())
 
@@ -258,7 +259,8 @@
 
         // Given a session is created
         val customView = Mockito.mock(TestView::class.java)
-        val weatherView = controller.buildAndConnectWeatherView(fakeParent, customView)
+        val weatherView =
+            checkNotNull(controller.buildAndConnectWeatherView(fakeParent, customView))
         controller.stateChangeListener.onViewAttachedToWindow(weatherView)
         verify(smartspaceManager).createSmartspaceSession(any())
 
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/MediaArtworkProcessorTest.kt b/packages/SystemUI/tests/src/com/android/systemui/statusbar/MediaArtworkProcessorTest.kt
index 724ea02..e4da53a 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/MediaArtworkProcessorTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/MediaArtworkProcessorTest.kt
@@ -47,7 +47,7 @@
         processor = MediaArtworkProcessor()
 
         val point = Point()
-        context.display.getSize(point)
+        checkNotNull(context.display).getSize(point)
         screenWidth = point.x
         screenHeight = point.y
     }
@@ -106,4 +106,4 @@
         // THEN the processed bitmap is null
         assertThat(background).isNull()
     }
-}
\ No newline at end of file
+}
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/lockscreen/LockscreenSmartspaceControllerTest.kt b/packages/SystemUI/tests/src/com/android/systemui/statusbar/lockscreen/LockscreenSmartspaceControllerTest.kt
index 2de5705..9036f22 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/lockscreen/LockscreenSmartspaceControllerTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/lockscreen/LockscreenSmartspaceControllerTest.kt
@@ -278,7 +278,7 @@
         `when`(deviceProvisionedController.isCurrentUserSetup).thenReturn(false)
 
         // WHEN a connection attempt is made and view is attached
-        val view = controller.buildAndConnectView(fakeParent)
+        val view = controller.buildAndConnectView(fakeParent)!!
         controller.stateChangeListener.onViewAttachedToWindow(view)
 
         // THEN no session is created
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/ConfigurationControllerImplTest.kt b/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/ConfigurationControllerImplTest.kt
index 03d3854..56d2397 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/ConfigurationControllerImplTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/ConfigurationControllerImplTest.kt
@@ -212,13 +212,13 @@
     @Test
     fun localeListChanged_listenerNotified() {
         val config = mContext.resources.configuration
-        config.locales = LocaleList(Locale.CANADA, Locale.GERMANY)
+        config.setLocales(LocaleList(Locale.CANADA, Locale.GERMANY))
         mConfigurationController.onConfigurationChanged(config)
 
         val listener = createAndAddListener()
 
         // WHEN the locales are updated
-        config.locales = LocaleList(Locale.FRANCE, Locale.JAPAN, Locale.CHINESE)
+        config.setLocales(LocaleList(Locale.FRANCE, Locale.JAPAN, Locale.CHINESE))
         mConfigurationController.onConfigurationChanged(config)
 
         // THEN the listener is notified
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/StatusBarContentInsetsProviderTest.kt b/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/StatusBarContentInsetsProviderTest.kt
index 1759fb7..210c5ab 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/StatusBarContentInsetsProviderTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/StatusBarContentInsetsProviderTest.kt
@@ -463,10 +463,10 @@
         val provider = StatusBarContentInsetsProvider(contextMock, configurationController,
             mock(DumpManager::class.java))
 
-        configuration.windowConfiguration.maxBounds = Rect(0, 0, 1080, 2160)
+        configuration.windowConfiguration.setMaxBounds(Rect(0, 0, 1080, 2160))
         val firstDisplayInsets = provider.getStatusBarContentAreaForRotation(ROTATION_NONE)
 
-        configuration.windowConfiguration.maxBounds = Rect(0, 0, 800, 600)
+        configuration.windowConfiguration.setMaxBounds(Rect(0, 0, 800, 600))
 
         // WHEN: get insets on the second display
         val secondDisplayInsets = provider.getStatusBarContentAreaForRotation(ROTATION_NONE)
@@ -482,14 +482,14 @@
         val provider = StatusBarContentInsetsProvider(contextMock, configurationController,
             mock(DumpManager::class.java))
 
-        configuration.windowConfiguration.maxBounds = Rect(0, 0, 1080, 2160)
+        configuration.windowConfiguration.setMaxBounds(Rect(0, 0, 1080, 2160))
         val firstDisplayInsetsFirstCall = provider
             .getStatusBarContentAreaForRotation(ROTATION_NONE)
 
-        configuration.windowConfiguration.maxBounds = Rect(0, 0, 800, 600)
+        configuration.windowConfiguration.setMaxBounds(Rect(0, 0, 800, 600))
         provider.getStatusBarContentAreaForRotation(ROTATION_NONE)
 
-        configuration.windowConfiguration.maxBounds = Rect(0, 0, 1080, 2160)
+        configuration.windowConfiguration.setMaxBounds(Rect(0, 0, 1080, 2160))
 
         // WHEN: get insets on the first display again
         val firstDisplayInsetsSecondCall = provider
@@ -577,4 +577,4 @@
                 " expected=$expected actual=$actual",
                 expected.equals(actual))
     }
-}
\ No newline at end of file
+}