[Mono-bugs] [Bug 646263] New: Back button Force Close - Unable to stop activity

[bugzilla_noreply at novell.com]

https://bugzilla.novell.com/show_bug.cgi?id=646263

https://bugzilla.novell.com/show_bug.cgi?id=646263#c0


           Summary: Back button Force Close - Unable to stop activity
    Classification: Mono
           Product: MonoDroid
           Version: SVN
          Platform: x86-64
        OS/Version: Windows 7
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: Runtime
        AssignedTo: mkestner at novell.com
        ReportedBy: jondick at gmail.com
         QAContact: mono-bugs at lists.ximian.com
          Found By: ---
           Blocker: ---


User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US)
AppleWebKit/534.3 (KHTML, like Gecko) Chrome/6.0.472.55 Safari/534.3

If I start an activity from the main activity, I can see it fine, however when
I hit my device's back button, I get a force close with the following:


10-13 14:11:13.016: INFO/KeyInputQueue(2486): Input event
10-13 14:11:13.016: DEBUG/KeyInputQueue(2486): screenCaptureKeyFlag setting 1
10-13 14:11:13.016: INFO/PowerManagerService(2486): Ulight 3->7|0
10-13 14:11:13.016: VERBOSE/WindowManager(2486): Dsptch to Window{485badd8
com.monodroid.customlist/monoDroid.customList.Preferences paused=false}
10-13 14:11:13.098: ERROR/imdg81(2486): IsShutDownStarted()
10-13 14:11:13.098: INFO/KeyInputQueue(2486): Input event
10-13 14:11:13.098: DEBUG/KeyInputQueue(2486): screenCaptureKeyFlag setting 0
10-13 14:11:13.129: VERBOSE/WindowManager(2486): Dsptch to Window{484d9430
com.monodroid.customlist/monoDroid.customList.CustomList paused=false}
10-13 14:11:13.305: DEBUG/AndroidRuntime(16418): Shutting down VM
10-13 14:11:13.305: WARN/dalvikvm(16418): threadid=1: thread exiting with
uncaught exception (group=0x4001d7d0)
10-13 14:11:13.348: ERROR/AndroidRuntime(16418): FATAL EXCEPTION: main
10-13 14:11:13.348: ERROR/AndroidRuntime(16418): java.lang.RuntimeException:
Unable to stop activity
{com.monodroid.customlist/monoDroid.customList.Preferences}:
java.lang.NullPointerException
10-13 14:11:13.348: ERROR/AndroidRuntime(16418):     at
android.app.ActivityThread.performDestroyActivity(ActivityThread.java:3607)
10-13 14:11:13.348: ERROR/AndroidRuntime(16418):     at
android.app.ActivityThread.handleDestroyActivity(ActivityThread.java:3673)
10-13 14:11:13.348: ERROR/AndroidRuntime(16418):     at
android.app.ActivityThread.access$2900(ActivityThread.java:125)
10-13 14:11:13.348: ERROR/AndroidRuntime(16418):     at
android.app.ActivityThread$H.handleMessage(ActivityThread.java:2066)
10-13 14:11:13.348: ERROR/AndroidRuntime(16418):     at
android.os.Handler.dispatchMessage(Handler.java:99)
10-13 14:11:13.348: ERROR/AndroidRuntime(16418):     at
android.os.Looper.loop(Looper.java:123)
10-13 14:11:13.348: ERROR/AndroidRuntime(16418):     at
android.app.ActivityThread.main(ActivityThread.java:4627)
10-13 14:11:13.348: ERROR/AndroidRuntime(16418):     at
java.lang.reflect.Method.invokeNative(Native Method)
10-13 14:11:13.348: ERROR/AndroidRuntime(16418):     at
java.lang.reflect.Method.invoke(Method.java:521)
10-13 14:11:13.348: ERROR/AndroidRuntime(16418):     at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:871)
10-13 14:11:13.348: ERROR/AndroidRuntime(16418):     at
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:629)
10-13 14:11:13.348: ERROR/AndroidRuntime(16418):     at
dalvik.system.NativeStart.main(Native Method)
10-13 14:11:13.348: ERROR/AndroidRuntime(16418): Caused by:
java.lang.NullPointerException
10-13 14:11:13.348: ERROR/AndroidRuntime(16418):     at
android.preference.PreferenceActivity.onStop(PreferenceActivity.java:117)
10-13 14:11:13.348: ERROR/AndroidRuntime(16418):     at
android.app.Instrumentation.callActivityOnStop(Instrumentation.java:1169)
10-13 14:11:13.348: ERROR/AndroidRuntime(16418):     at
android.app.Activity.performStop(Activity.java:3857)
10-13 14:11:13.348: ERROR/AndroidRuntime(16418):     at
android.app.ActivityThread.performDestroyActivity(ActivityThread.java:3602)
10-13 14:11:13.348: ERROR/AndroidRuntime(16418):     ... 11 more
10-13 14:11:13.356: WARN/ActivityManager(2486):   Force finishing activity
com.monodroid.customlist/monoDroid.customList.CustomList
10-13 14:11:13.368: INFO/(2486): dumpmesg > /data/log/dumpstate_app_error.log


Reproducible: Always

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