System.ObjectDisposedException: Cannot access a disposed object. Object name: 'Android.Util.LruCache'

# Steps to reproduce
The old version:

Xamarin 4.1.2.18 (fcbe082)
Visual Studio extension to enable development for Xamarin.iOS and Xamarin.Android.

Xamarin.Android 6.1.2.21 (1cf254d)
Visual Studio extension to enable development for Xamarin.Android.

Xamarin.iOS 9.8.2.22 (f37444a)
Visual Studio extension to enable development for Xamarin.iOS.

-> The app works fine.

------------------------------------------------------------------------------

Update to the new version:

Xamarin 4.2.0.719 (15694b9)
Visual Studio extension to enable development for Xamarin.iOS and Xamarin.Android.

Xamarin.Android 7.0.1.6 (5a02b03)
Visual Studio extension to enable development for Xamarin.Android.

Xamarin.iOS 10.2.0.4 (b638977)
Visual Studio extension to enable developme_nt for Xamarin.iOS.

I'm using 'Android.Util.LruCache' to cache the bitmaps. When an Activity is destroyed I calls Android.Util.LruCache.EvictAll () method to release all bitmaps from LruCache. The problem occurs:
System.ObjectDisposedException: Cannot access a disposed object.
Object name: 'Android.Util.LruCache'.

Sometimes, I also have the problem when I get a bitmap from 'Android.Util.LruCache'.

# Expected behavior
Android.Util.LruCache works as the old version

# Supplemental info (logs, images, videos)

11-15 10:25:30.655: I/MonoDroid(21130): UNHANDLED EXCEPTION:
11-15 10:25:30.665: I/MonoDroid(21130): System.ObjectDisposedException: Cannot access a disposed object.
11-15 10:25:30.665: I/MonoDroid(21130): Object name: 'Android.Util.LruCache'.
11-15 10:25:30.665: I/MonoDroid(21130): at Java.Interop.JniPeerMembers.AssertSelf (Java.Interop.IJavaPeerable self) [0x00030] in :0
11-15 10:25:30.665: I/MonoDroid(21130): at Java.Interop.JniPeerMembers+JniInstanceMethods.InvokeNonvirtualVoidMethod (System.String encodedMember, Java.Interop.IJavaPeerable self, Java.Interop.JniArgumentValue* parameters) [0x00001] in :0
11-15 10:25:30.665: I/MonoDroid(21130): at Android.Util.LruCache.EvictAll () [0x0000a] in <1ad43caae830460c9400510a1c85e4fd>:0

# Test environment (full version information)
Device: Samsung Galaxy Tab 4 (4.4.2)

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Microsoft Visual Studio Professional 2013
Version 12.0.31101.00 Update 4
Microsoft .NET Framework
Version 4.6.01055

Installed Version: Professional

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SharpSvn is optionally linked to: Berkeley DB 4.4.20, SharpPlink 1.8011.3473.77

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ASP.NET and Web Tools 12.4.51016.0
Microsoft Web Developer Tools contains the following components:
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For additional information, visit http://go.microsoft.com/fwlink/?LinkID=309563

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Microsoft Advertising SDK for Windows Phone
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Microsoft Azure Mobile Services Tools 1.3
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Xamarin 4.2.0.719 (15694b9)
Visual Studio extension to enable development for Xamarin.iOS and Xamarin.Android.

Xamarin.Android 7.0.1.6 (5a02b03)
Visual Studio extension to enable development for Xamarin.Android.

Xamarin.iOS 10.2.0.4 (b638977)
Visual Studio extension to enable development for Xamarin.iOS.


Reference: https://bugzilla.xamarin.com/show_bug.cgi?id=47158