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25 January 2012 11:32 AM

ifor Sr. Member

Total Posts: 122

Joined 2010-10-25

I got a strange crash from my Ant interfaceing app. As far as I was concerened I had finished using the app 20 minutes previously and had shutdown the api The Ant notification had was long gone. The crash was caught by Acra. Here is the stack dump.

java.lang.IllegalArgumentException: Context must be provided 
    at com.dsi.ant.AntInterface.initService(AntInterface.java:268) 
    at com.dsi.ant.AntInterface$1.onServiceDisconnected(AntInterface.java:250) 
    at android.app.LoadedApk$ServiceDispatcher.doDeath(LoadedApk.java:1069) 
    at android.app.LoadedApk$ServiceDispatcher$RunConnection.run(LoadedApk.java:1083) 
    at android.os.Handler.handleCallback(Handler.java:587) 
    at android.os.Handler.dispatchMessage(Handler.java:92) 
    at android.os.Looper.loop(Looper.java:130) 
    at android.app.ActivityThread.main(ActivityThread.java:3701) 
    at java.lang.reflect.Method.invokeNative(Native Method) 
    at java.lang.reflect.Method.invoke(Method.java:507) 
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:866) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:624) 
    at dalvik.system.NativeStart.main(Native Method) 

As you can see there is nothing from my code in there. There are a few lins of interest in the logcat.

01-25 14:57:21.484 V/IpBike  ( 7046): BaseSaveState IDLE 
01-25 14:57:21.484 I/ActivityManager(  230): Start proc org.openintents.filemanager for activity org.openintents.filemanager/.FileManagerActivity: pid=7728 uid=10135 gids={1015} 
01-25 14:57:21.564 I/ActivityManager(  230): No longer want com.dsi.ant.service.socket (pid 5925): hidden #16 
01-25 14:57:21.574 D/AndroidRuntime( 5284): Shutting down VM 
01-25 14:57:21.574 W/dalvikvm( 5284): threadid=1: thread exiting with uncaught exception (group=0x2aac8578) 
01-25 14:57:21.574 E/ACRA    ( 5284): ACRA caught a IllegalArgumentException exception for com.iforpowell.android.ipantman. Building report. 
01-25 14:57:21.574 D/AntHal  (  230): failed to read from client=162 
01-25 14:57:21.574 I/bluedroid(  230): Stopping hciattach deamon 
01-25 14:57:21.574 D/ACRA    ( 5284): Retrieve application default SharedPreferences. 
01-25 14:57:21.604 I/bluedroid(  230): Stopping hciattach deamon 
01-25 14:57:21.604 D/AntHal  (  230): client 162 closed 
01-25 14:57:21.604 D/AntHal  (  230): waiting for new client 
01-25 14:57:21.604 W/ActivityManager(  230): Scheduling restart of crashed service com.dsi.ant.service.socket/.AntRadioService in 5000ms 
01-25 14:57:21.634 I/ActivityThread( 7728): Pub org.openintents.filemanager: org.openintents.filemanager.FileManagerProvider 
01-25 14:57:21.684 I/EulaOrNewVersion( 7728): Eula has been accepted. 
01-25 14:57:21.694 I/EulaOrNewVersion( 7728): Same version 17 as last launch. 

There will of been some memory presure as I was starting the OIFileManger from within IpBike it looks to me like the system decided to get rid of com.dsi.ant.service.socket which is when the error occured.

This is on an SE Active with I belive the curent version of AntRadioService, although I am not that sure how to check.

26 January 2012 04:40 PM #1

jbootsma Newbie

Total Posts: 4

Joined 2011-08-22

We have tracked this down to a code bug that can be triggered in the ANTLib code when the ARS is killed by the system at the same time as a call to releaseService.

There will be a release of the ANT SDK which includes this fix soon. In the meantime the problem can be fixed by removing the following redundant code from AntInterface.java (They are located in the onServiceDisconnected method of mIAntConnection):

Context oldContext = mContext; 
ServiceListener oldServiceListener = mServiceListener; 
releaseService(); 
initService(oldContext, oldServiceListener); 

27 January 2012 04:14 AM #2

ifor Sr. Member

Total Posts: 122

Joined 2010-10-25

Thanks I will add the workaround.

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Strange shutdown crash.