I added this code to my books app to recognize foldable devices (deleted unrelevant code).
On OnePlus and Oppo devices (not foldable) the app crashes.
It happens only in Android OS bigger than 13.

Code:

    private WindowInfoTrackerCallbackAdapter windowInfoTracker;
    private final Consumer<WindowLayoutInfo> layoutStateChangeCallback = new LayoutStateChangeCallback();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_epub_reader);
        windowInfoTracker = new WindowInfoTrackerCallbackAdapter(WindowInfoTracker.getOrCreate(this));
    }

    @Override
    protected void onStart() {
        super.onStart();
        if (Utilities.isFoldableDevice(this)) {
            Timber.tag(TAG).d("onStart: isFoldableDevice");
            windowInfoTracker.addWindowLayoutInfoListener(this, Runnable::run, layoutStateChangeCallback);
        }
    }

    @Override
    protected void onStop() {
        super.onStop();
        if (Utilities.isFoldableDevice(this)) {
            windowInfoTracker.removeWindowLayoutInfoListener(layoutStateChangeCallback);
        }
    }

    class LayoutStateChangeCallback implements Consumer<WindowLayoutInfo> {
        @Override
        public void accept(WindowLayoutInfo newLayoutInfo) {
            EpubReaderActivity.this.runOnUiThread(() -> {
                try {
                    boolean isDeviceFlatFoldable = !newLayoutInfo.getDisplayFeatures().isEmpty();
                    Timber.tag(TAG).d("accept: isDeviceFlatFoldable = %s", isDeviceFlatFoldable);
                    if (preferencesManager.getIsDeviceFlatFoldable() != isDeviceFlatFoldable) {
                        preferencesManager.setIsDeviceFlatFoldable(isDeviceFlatFoldable);
                        EventBus.getDefault().post(new EpubColumnsChangeEvent());
                    }
                } catch (Exception e) {
                    Timber.e(e);
                }
            });
        }
    }

    public static boolean isFoldableDevice(Context context) {
        // at least Android 11 (Version code 30) is required
        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.R) {
            return context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_SENSOR_HINGE_ANGLE);
        }
        return false;
    }

build.gradle

implementation ‘androidx.window:window-java:1.3.0’

Crash log:

   Fatal Exception: java.lang.AbstractMethodError: abstract method "void androidx.window.sidecar.SidecarInterface$SidecarCallback.onDeviceStateChanged(androidx.window.sidecar.SidecarDeviceState)"
   at androidx.window.sidecar.StubSidecar.updateDeviceState(StubSidecar.java:64)
   at androidx.window.sidecar.SampleSidecarImpl.onDisplayFeaturesChanged(SampleSidecarImpl.java:78)
   at androidx.window.sidecar.SampleSidecarImpl.-$$Nest$monDisplayFeaturesChanged()
   at androidx.window.sidecar.SampleSidecarImpl$NotifyOnConfigurationChanged.onDisplayFeaturesChangedForActivity(SampleSidecarImpl.java:194)
   at androidx.window.sidecar.SampleSidecarImpl$NotifyOnConfigurationChanged.onActivityCreated(SampleSidecarImpl.java:182)
   at android.app.Application.dispatchActivityCreated(Application.java:388)
   at android.app.Activity.dispatchActivityCreated(Activity.java:1430)
   at android.app.Activity.onCreate(Activity.java:1758)
   at androidx.core.app.ComponentActivity.onCreate(ComponentActivity.java:88)
   at androidx.activity.ComponentActivity.onCreate(ComponentActivity.java:363)
   at androidx.fragment.app.FragmentActivity.onCreate(FragmentActivity.java:273)
   at androidx.appcompat.app.AppCompatActivity.onCreate(AppCompatActivity.java:65347)
   at com.yit.evrit.viewer.BaseActivity.onCreate(BaseActivity.kt:37)
   at com.yit.evrit.viewer.BaseActivity.onCreate(BaseActivity.kt:216)
   at com.yit.evrit.reader.BaseReaderActivity.onCreate(BaseReaderActivity.java:78)
   at com.yit.evrit.reader.BaseReaderActivity.onCreate(BaseReaderActivity.java:259)
   at com.yit.evrit.reader.epub.ui.main_screen.EpubReaderActivity.onCreate(EpubReaderActivity.java:461)
   at com.yit.evrit.reader.epub.ui.main_screen.EpubReaderActivity.onCreate(EpubReaderActivity.java:1665)
   at android.app.Activity.performCreate(Activity.java:8757)
   at android.app.Activity.performCreate(Activity.java:8729)
   at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1475)
   at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:4005)
   at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:4181)
   at android.app.ActivityThread.handleRelaunchActivityInner(ActivityThread.java:6349)
   at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:6219)
   at android.app.servertransaction.ActivityRelaunchItem.execute(ActivityRelaunchItem.java:76)
   at android.app.servertransaction.ActivityTransactionItem.execute(ActivityTransactionItem.java:45)
   at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:144)
   at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:101)
   at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2643)
   at android.os.Handler.dispatchMessage(Handler.java:106)
   at android.os.Looper.loopOnce(Looper.java:257)
   at android.os.Looper.loop(Looper.java:368)
   at android.app.ActivityThread.main(ActivityThread.java:8839)
   at java.lang.reflect.Method.invoke(Method.java)
   at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:572)
   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1049)