diff --git a/core/java/android/view/WindowManagerImpl.java b/core/java/android/view/WindowManagerImpl.java
index 20ecaf599921a..a2d3e3447354a 100644
--- a/core/java/android/view/WindowManagerImpl.java
+++ b/core/java/android/view/WindowManagerImpl.java
@@ -24,7 +24,7 @@ import static android.view.WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR;
 import static android.view.WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN;
 import static android.view.WindowManager.LayoutParams.LAST_SUB_WINDOW;
 import static android.view.WindowManager.LayoutParams.SOFT_INPUT_ADJUST_NOTHING;
-import static android.window.WindowProvider.KEY_IS_WINDOW_PROVIDER_SERVICE;
+import static android.window.WindowProviderService.isWindowProviderService;
 
 import android.annotation.CallbackExecutor;
 import android.annotation.NonNull;
@@ -177,8 +177,7 @@ public final class WindowManagerImpl implements WindowManager {
                 + " Please create another Window Context via"
                 + " createWindowContext(getDisplay(), " + windowType + ", null)"
                 + " to add window with type:" + windowType);
-        if (!windowProvider.getWindowContextOptions().getBoolean(KEY_IS_WINDOW_PROVIDER_SERVICE,
-                false)) {
+        if (!isWindowProviderService(windowProvider.getWindowContextOptions())) {
             throw exception;
         }
         // Throw IncorrectCorrectViolation if the Window Context is allowed to provide multiple
diff --git a/core/java/android/window/WindowProviderService.java b/core/java/android/window/WindowProviderService.java
index 033b9eda9da4b..f8484d15344e0 100644
--- a/core/java/android/window/WindowProviderService.java
+++ b/core/java/android/window/WindowProviderService.java
@@ -55,6 +55,19 @@ public abstract class WindowProviderService extends Service implements WindowPro
     private WindowManager mWindowManager;
     private boolean mInitialized;
 
+    /**
+     * Returns {@code true} if the {@code windowContextOptions} declares that it is a
+     * {@link WindowProviderService}.
+     *
+     * @hide
+     */
+    public static boolean isWindowProviderService(@Nullable Bundle windowContextOptions) {
+        if (windowContextOptions == null) {
+            return false;
+        }
+        return (windowContextOptions.getBoolean(KEY_IS_WINDOW_PROVIDER_SERVICE, false));
+    }
+
     public WindowProviderService() {
         mOptions = new Bundle();
         mOptions.putBoolean(KEY_IS_WINDOW_PROVIDER_SERVICE, true);
diff --git a/services/core/java/com/android/server/wm/WindowManagerService.java b/services/core/java/com/android/server/wm/WindowManagerService.java
index 0e25f26c56429..f31836c0c9262 100644
--- a/services/core/java/com/android/server/wm/WindowManagerService.java
+++ b/services/core/java/com/android/server/wm/WindowManagerService.java
@@ -87,7 +87,7 @@ import static android.view.WindowManagerGlobal.RELAYOUT_RES_SURFACE_CHANGED;
 import static android.view.WindowManagerPolicyConstants.NAV_BAR_INVALID;
 import static android.view.displayhash.DisplayHashResultCallback.DISPLAY_HASH_ERROR_MISSING_WINDOW;
 import static android.view.displayhash.DisplayHashResultCallback.DISPLAY_HASH_ERROR_NOT_VISIBLE_ON_SCREEN;
-import static android.window.WindowContext.KEY_IS_WINDOW_PROVIDER_SERVICE;
+import static android.window.WindowProviderService.isWindowProviderService;
 
 import static com.android.internal.protolog.ProtoLogGroup.WM_DEBUG_ADD_REMOVE;
 import static com.android.internal.protolog.ProtoLogGroup.WM_DEBUG_BOOT;
@@ -1740,7 +1740,7 @@ public class WindowManagerService extends IWindowManager.Stub
                     // We allow WindowProviderService to add window other than windowContextType,
                     // but the WindowProviderService won't be associated with the window's
                     // WindowToken.
-                    if (!options.getBoolean(KEY_IS_WINDOW_PROVIDER_SERVICE, false)) {
+                    if (!isWindowProviderService(options)) {
                         return WindowManagerGlobal.ADD_INVALID_TYPE;
                     }
                 } else {