Bug 4999 - 4.1.2 REGRESSION: AsyncTask with string parameter dies with InvalidCastException
Summary: 4.1.2 REGRESSION: AsyncTask with string parameter dies with InvalidCastException
Alias: None
Product: Android
Classification: Xamarin
Component: BCL Class Libraries ()
Version: 4.1.x
Hardware: PC Mac OS
: --- critical
Target Milestone: ---
Assignee: Bugzilla
Depends on:
Reported: 2012-05-10 10:04 UTC by Jonathan Pryor
Modified: 2012-05-10 14:37 UTC (History)
1 user (show)

Is this bug a regression?: ---
Last known good build:

AsyncTest.7z (225.52 KB, application/x-7z-compressed)
2012-05-10 10:04 UTC, Jonathan Pryor

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Description Jonathan Pryor 2012-05-10 10:04:50 UTC
Created attachment 1848 [details]

AsyncTask with string parameter dies with InvalidCastException

To reproduce:

1. Extract, install, run the attached project.

Expected results:

No error.

Actual results:

> Unhandled Exception: System.InvalidCastException: Value is not a convertible object: Java.Lang.String to System.String
>   at System.Convert.ToType (System.Object value, System.Type conversionType, IFormatProvider provider, Boolean try_target_to_type) [0x00000] in <filename unknown>:0 
>   at System.Convert.ChangeType (System.Object value, System.Type conversionType) [0x00000] in <filename unknown>:0 
>   at Java.Interop.JavaConvert.FromJavaObject[String] (IJavaObject value) [0x00000] in <filename unknown>:0 
>   at Android.OS.AsyncTask`3[System.String,System.Int32,AsyncTest.RandomUDT].DoInBackground (Java.Lang.Object[] native_parms) [0x00000] in <filename unknown>:0 
>   at Android.OS.AsyncTask.n_DoInBackground_arrayLjava_lang_Object_ (IntPtr jnienv, IntPtr native__this, IntPtr native__params) [0x00000] in <filename unknown>:0 
>   at (wrapper dynamic-method) object:2c1ed6b4-1136-4310-b7ea-9b6d24a3642a (intptr,intptr,intptr)
Comment 1 Jonathan Pryor 2012-05-10 14:37:26 UTC
Fixed in master/8419c600 and 4.2-series/087579a5.