jni: ThrowingException 2, Out of range in /home/cc/repo/realm/release/realm/realm-library/src/main/cpp/io_realm_internal_Collection.cpp line 417(requested: 1 valid: 1), .

I am using a RecyclerView with realm 3.3.1 . The use case is simply to store realm objects in the database and then use SparseBoolean array to delete multiple items from the RV.

When does the crash occur?

The fatal crash occurs when I select multiple items to delete from the recyclerview. This exception is produced when I selected 2 items out of 2 for deletion. The crash happens when I am using Asus T00J Zenfone 5 and HTC one M8 both running Android 5.0. Everything runs smooth when I use the app on Android 6 or 7

How am I deleting?

private void deleteSelectedItems() {
        final List<Integer> items = adapter.getSelectedItems();
        for (int pos : items) {
            adapter.removeItem(pos);
        }
    }

My recyclerview :

private class RecViewAdapter extends RealmRecViewAdapter<MediaItem, RecViewAdapter.ViewHolder> {
.
.
.
.
public void removeItem(final int pos) {
            Log.d("test", pos+" index");
            realm.executeTransaction(realm1 -> {
                getData().deleteFromRealm(pos); //getting exception at this line
                notifyDataSetChanged();
            });
        }

Exception:

06-05 03:03:27.518 20378-20378/task.application.com.moviefinder E/REALM_JNI: Exception has been thrown: Out of range  in /home/cc/repo/realm/release/realm/realm-library/src/main/cpp/io_realm_internal_Collection.cpp line 417(requested: 1 valid: 1)
06-05 03:03:27.518 20378-20378/task.application.com.moviefinder D/AndroidRuntime: Shutting down VM
06-05 03:03:27.518 20378-20378/task.application.com.moviefinder E/AndroidRuntime: FATAL EXCEPTION: main
                                                                                  Process: task.application.com.moviefinder, PID: 20378
                                                                                  java.lang.ArrayIndexOutOfBoundsException: Out of range  in /home/cc/repo/realm/release/realm/realm-library/src/main/cpp/io_realm_internal_Collection.cpp line 417(requested: 1 valid: 1)
                                                                                      at io.realm.internal.Collection.nativeDelete(Native Method)
                                                                                      at io.realm.internal.Collection.delete(Collection.java:477)
                                                                                      at io.realm.OrderedRealmCollectionImpl.deleteFromRealm(OrderedRealmCollectionImpl.java:181)
                                                                                      at io.realm.RealmResults.deleteFromRealm(RealmResults.java:60)
                                                                                      at task.application.com.moviefinder.ui.favorites.FavoritesMediaFragment$RecViewAdapter.lambda$removeItem$2(FavoritesMediaFragment.java:261)
                                                                                      at task.application.com.moviefinder.ui.favorites.FavoritesMediaFragment$RecViewAdapter$$Lambda$1.execute(Unknown Source)
                                                                                      at io.realm.Realm.executeTransaction(Realm.java:1443)
                                                                                      at task.application.com.moviefinder.ui.favorites.FavoritesMediaFragment$RecViewAdapter.removeItem(FavoritesMediaFragment.java:260)
                                                                                      at task.application.com.moviefinder.ui.favorites.FavoritesMediaFragment.deleteSelectedItems(FavoritesMediaFragment.java:165)
                                                                                      at task.application.com.moviefinder.ui.favorites.FavoritesMediaFragment.access$500(FavoritesMediaFragment.java:41)
                                                                                      at task.application.com.moviefinder.ui.favorites.FavoritesMediaFragment$3.onActionItemClicked(FavoritesMediaFragment.java:147)
                                                                                      at com.android.internal.policy.impl.PhoneWindow$DecorView$ActionModeCallbackWrapper.onActionItemClicked(PhoneWindow.java:3172)
                                                                                      at android.support.v7.view.SupportActionModeWrapper$CallbackWrapper.onActionItemClicked(SupportActionModeWrapper.java:173)
                                                                                      at android.support.v7.app.AppCompatDelegateImplV9$ActionModeCallbackWrapperV9.onActionItemClicked(AppCompatDelegateImplV9.java:1801)
                                                                                      at android.support.v7.view.StandaloneActionMode.onMenuItemSelected(StandaloneActionMode.java:140)
                                                                                      at android.support.v7.view.menu.MenuBuilder.dispatchMenuItemSelected(MenuBuilder.java:822)
                                                                                      at android.support.v7.view.menu.MenuItemImpl.invoke(MenuItemImpl.java:156)
                                                                                      at android.support.v7.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:969)
                                                                                      at android.support.v7.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:959)
                                                                                      at android.support.v7.widget.ActionMenuView.invokeItem(ActionMenuView.java:623)
                                                                                      at android.support.v7.view.menu.ActionMenuItemView.onClick(ActionMenuItemView.java:154)
                                                                                      at android.view.View.performClick(View.java:4756)
                                                                                      at android.view.View$PerformClick.run(View.java:19761)
                                                                                      at android.os.Handler.handleCallback(Handler.java:739)
                                                                                      at android.os.Handler.dispatchMessage(Handler.java:95)
                                                                                      at android.os.Looper.loop(Looper.java:135)
                                                                                      at android.app.ActivityThread.main(ActivityThread.java:5253)
                                                                                      at java.lang.reflect.Method.invoke(Native Method)
                                                                                      at java.lang.reflect.Method.invoke(Method.java:372)
                                                                                      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
                                                                                      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)```

[Zhuinden]

Luck. It depends on what positions you had selected.

[Zhuinden]

A possible solution would be this:

    private void deleteSelectedItems() {
        final List<Integer> items = adapter.getSelectedItems();
        realm.executeTransaction((r) -> {
            OrderedRealmCollection<MediaItem> snapshot = adapter.getData().createSnapshot();
            for (int pos : items) {
                snapshot.deleteFromRealm(pos);
            }
        });
    }