ToListAsync fails

[ChristianM66]

The bug was reported in a similar way under #809.

ToListAsync(), ToArrayAsync() and CountAsync() throw an exception when under Android called. However, the exception is thrown in debug and release. It makes no difference whether breakpoints are set or not. With iOS the calls work without problems.

Java.Util.ConcurrentModificationException

Examples: var query = await database.Table().Where(x => x.Id == id).ToListAsync(); var query = await database.Table().Where(x =>iIds.Contains(x.d)).ToListAsync();

Tested:

• Xamarin.Forms 4.3.00.991211 and sqlite-pcl 1.5.231
• Xamarin.Forms 4.3.00.991211 and sqlite-pcl 1.6.292
• Xamarin.Forms 4.3.00.947036 and sqlite-pcl 1.5.231
• Xamarin.Forms 4.3.00.947036 and sqlite-pcl 1.6.292
• Last working framework: Xamarin.Forms 4.1.0.778454

Enviroment: Win10 1909 Visual Studio 2019 16.3.9 Android min. version 7.0 (Api 24) Android target version 9.0 (Api 28)

[ChristianM66]

All Async calls, such as CountAsync, ToListAsync, ToArrayAsync etc. throw a Java.Util.ConcurrentModificationException

[CaseAlexander]

I just ran into a very similar issue and found that if I used .ToListAsync().ConfigureAwait(false) everything worked as expected.