Cannot access disposed object with JniIdentityHashCode=8642587

[rokmeglicbit]

One time I got this exception and I can not reproduce it. It was related to this issue when I was searching for reproducable code.

Application error: System.ObjectDisposedException: Cannot access disposed object with JniIdentityHashCode=8642587.
Object name: 'Microsoft.Maui.Graphics.Platform.PlatformGraphicsView'.
   at Java.Interop.JniPeerMembers.AssertSelf(IJavaPeerable self)
   at Java.Interop.JniPeerMembers.JniInstanceMethods.InvokeVirtualVoidMethod(String encodedMember, IJavaPeerable self, JniArgumentValue* parameters)
   at Android.Views.View.Invalidate()
   at Syncfusion.Maui.Toolkit.Graphics.Internals.SfDrawableViewHandler.Invalidate() in C:\Git\MAUIToolKit\RP\maui-toolkit\maui\src\Core\DrawableView\Handlers\SfDrawableViewHandler.Android.cs:line 28
   at Syncfusion.Maui.Toolkit.Graphics.Internals.SfDrawableView.InvalidateDrawable() in C:\Git\MAUIToolKit\RP\maui-toolkit\maui\src\Core\DrawableView\SfDrawableView.cs:line 35
   at Syncfusion.Maui.Toolkit.Charts.SeriesView.UpdateSeries() in C:\Git\MAUIToolKit\RP\maui-toolkit\maui\src\Charts\Layouts\ChartSeriesView.cs:line 64
   at Syncfusion.Maui.Toolkit.Charts.ChartPlotArea.UpdateVisibleSeries() in C:\Git\MAUIToolKit\RP\maui-toolkit\maui\src\Charts\Area\ChartPlotArea.cs:line 167
   at Syncfusion.Maui.Toolkit.Charts.CartesianChartArea.UpdateVisibleSeries() in C:\Git\MAUIToolKit\RP\maui-toolkit\maui\src\Charts\Area\CartesianChartArea.cs:line 161
   at Syncfusion.Maui.Toolkit.Charts.CartesianChartArea.UpdateAreaCore() in C:\Git\MAUIToolKit\RP\maui-toolkit\maui\src\Charts\Area\CartesianChartArea.cs:line 145
   at Syncfusion.Maui.Toolkit.Internals.AreaBase.UpdateArea() in C:\Git\MAUIToolKit\RP\maui-toolkit\maui\src\Core\Legend\AreaBase.cs:line 165
   at Syncfusion.Maui.Toolkit.Internals.CoreScheduler.InvokeCallback() in C:\Git\MAUIToolKit\RP\maui-toolkit\maui\src\Core\CoreScheduler\CoreScheduler.cs:line 79
   at Microsoft.Maui.Dispatching.Dispatcher.<>c__DisplayClass3_0.<DispatchImplementation>b__0() in /_/src/Core/src/Dispatching/Dispatcher.Android.cs:line 23
   at Java.Lang.Thread.RunnableImplementor.Run()
   at Java.Lang.IRunnableInvoker.n_Run(IntPtr jnienv, IntPtr native__this)
Message: Cannot access disposed object with JniIdentityHashCode=8642587.
Object name: 'Microsoft.Maui.Graphics.Platform.PlatformGraphicsView'.
TargetSite: Void AssertSelf(Java.Interop.IJavaPeerable)
Sender: System.Object
--------------------------------------
   at Java.Interop.JniPeerMembers.AssertSelf(IJavaPeerable self)
   at Java.Interop.JniPeerMembers.JniInstanceMethods.InvokeVirtualVoidMethod(String encodedMember, IJavaPeerable self, JniArgumentValue* parameters)
   at Android.Views.View.Invalidate()
   at Syncfusion.Maui.Toolkit.Graphics.Internals.SfDrawableViewHandler.Invalidate() in C:\Git\MAUIToolKit\RP\maui-toolkit\maui\src\Core\DrawableView\Handlers\SfDrawableViewHandler.Android.cs:line 28
   at Syncfusion.Maui.Toolkit.Graphics.Internals.SfDrawableView.InvalidateDrawable() in C:\Git\MAUIToolKit\RP\maui-toolkit\maui\src\Core\DrawableView\SfDrawableView.cs:line 35
   at Syncfusion.Maui.Toolkit.Charts.SeriesView.UpdateSeries() in C:\Git\MAUIToolKit\RP\maui-toolkit\maui\src\Charts\Layouts\ChartSeriesView.cs:line 64
   at Syncfusion.Maui.Toolkit.Charts.ChartPlotArea.UpdateVisibleSeries() in C:\Git\MAUIToolKit\RP\maui-toolkit\maui\src\Charts\Area\ChartPlotArea.cs:line 167
   at Syncfusion.Maui.Toolkit.Charts.CartesianChartArea.UpdateVisibleSeries() in C:\Git\MAUIToolKit\RP\maui-toolkit\maui\src\Charts\Area\CartesianChartArea.cs:line 161
   at Syncfusion.Maui.Toolkit.Charts.CartesianChartArea.UpdateAreaCore() in C:\Git\MAUIToolKit\RP\maui-toolkit\maui\src\Charts\Area\CartesianChartArea.cs:line 145
   at Syncfusion.Maui.Toolkit.Internals.AreaBase.UpdateArea() in C:\Git\MAUIToolKit\RP\maui-toolkit\maui\src\Core\Legend\AreaBase.cs:line 165
   at Syncfusion.Maui.Toolkit.Internals.CoreScheduler.InvokeCallback() in C:\Git\MAUIToolKit\RP\maui-toolkit\maui\src\Core\CoreScheduler\CoreScheduler.cs:line 79
   at Microsoft.Maui.Dispatching.Dispatcher.<>c__DisplayClass3_0.<DispatchImplementation>b__0() in /_/src/Core/src/Dispatching/Dispatcher.Android.cs:line 23
   at Java.Lang.Thread.RunnableImplementor.Run()
   at Java.Lang.IRunnableInvoker.n_Run(IntPtr jnienv, IntPtr native__this)

Is this anyway helpful to make syncfusion more stable?

[rokmeglicbit]

Additional info.

<chart:SfCartesianChart.YAxes>
    <chart:NumericalAxis
        IsVisible="True"
        ShowMajorGridLines="True"
        ShowMinorGridLines="False"
        Name="OtherData" 
        Minimum="{Binding TemperatureMinimum}" 
        Maximum="{Binding TemperatureMaximum}" 
        Interval="1"
        LabelStyle="{StaticResource yAxisLabelStylePercentage}">
        <chart:NumericalAxis.MinorGridLineStyle>
            <chart:ChartLineStyle StrokeDashArray="0" Stroke="Black" StrokeWidth="0"/>
        </chart:NumericalAxis.MinorGridLineStyle>
    </chart:NumericalAxis>
</chart:SfCartesianChart.YAxes>

Do fast update (let's say 100 iterations) on 'TemperatureMinimum' and it can go to deadlock of UI.

[rokmeglicbit]

I cannot create a reproducible project for this issue. Every time I remove most of the application code, the project starts working again.

However, when running the full application, an infinite loop occurs.

The issue appears to be the same as the one described in this discussion:
dotnet/maui#35580

The error still exists in my application, but I am unable to isolate the cause or create a minimal reproducible example.

[rokmeglicbit]

At least for my project, I figure it out, it is related to syncfusion/maui-toolkit/chart
maui-toolkit. If I replace it with LiveCharts2 I can remove the Task.Delay(1) in ApplyTemplate() and it works.

Sadly, I can not reproduce this for #392 or dotnet/maui#35580 issues/discussions.

Note. This is just my observation and I may be wrong, so I do not want to blame anybody without having a reproducable code.