Bug 4421 - NRE when selecting ‘Action Bar Display Options’ in API Demo sample
Summary: NRE when selecting ‘Action Bar Display Options’ in API Demo sample
Alias: None
Product: Android
Classification: Xamarin
Component: Samples ()
Version: 4.0
Hardware: Macintosh Mac OS
: Low normal
Target Milestone: ---
Assignee: Bugzilla
Depends on:
Reported: 2012-04-13 09:29 UTC by PJ
Modified: 2014-01-07 18:07 UTC (History)
3 users (show)

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

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Description PJ 2012-04-13 09:29:11 UTC
1) Debug API Demo with the option Build->General->Target framework set to Ice Cream Sandwich (4.0)
2) Navigate to App->Action Bar Display Options

Expected behavior:

Actual behavior:
App stops responding, NRE thrown.

MD Stacktrace: https://gist.github.com/2376730
Logcat: https://gist.github.com/2376741

This behavior is seen on both Debug and Release.
This behavior is seen on both Emulator and Device.

Found on:
Mono 2.10.9
Mono for Android 4.0.6
OSX Lion 10.7.3

4.0 (Ice Cream Sandwich)

API Demo Sample (master)
Comment 1 Peter Collins 2013-05-21 16:22:30 UTC
Bug reproduced and confirmed on current stable of XA (4.6.6 - 6d7480e9).
Comment 2 Jonathan Pryor 2013-05-21 17:41:19 UTC
@Peter: Can you provide the most recent Logcat when this occurred?
Comment 3 Peter Collins 2013-05-21 18:49:10 UTC
Here's the logcat of this NRE. Looks similar to the one PJ posted. https://gist.github.com/pjcollins/65dbb8ebeeaa85eb64f4
Comment 4 Jonathan Pryor 2013-05-21 22:48:31 UTC
That's still confusing. :-(

Specifically this part:

> 05-21 18:48:03.175   218   218 D Zygote  : Process 2075 exited cleanly (1)

Normally, the value in parenthesis is the exit value of the process, e.g. `exit(1)` was invoked. (Unverified, but that's my recollection...)

The only spot that calls `exit(1)` is when `libmonosgen-2.0.so` can't be found for Debug builds, which clearly isn't the case here. (The `exit(1)` code also prints out a reason for exiting.)

Guess I'll need to investigate...
Comment 5 Peter Collins 2014-01-07 18:07:28 UTC
ApiDemo has had major changes since this bug was filed and is no longer valid.