ANT Forum

While connected to SimulANT+ for all types of bike power meter and speed/cadence sensors(default settings), I experienced this crash:

E/AndroidRuntime(2109): FATAL EXCEPTION: PluginPCCEventHandler
E/AndroidRuntime(2109): java.lang.NullPointerException
E/AndroidRuntime(2109): at com.dsi.ant.plugins.antplus.pcc.AntPlusBikePowerPcc.handlePluginEvent(AntPlusBikePowerPcc.java:2104)
E/AndroidRuntime(2109): at com.dsi.ant.plugins.antplus.pccbase.AntPluginPcc$3.handleMessage(AntPluginPcc.java:758)
E/AndroidRuntime(2109): at android.os.Handler.dispatchMessage(Handler.java:95)
E/AndroidRuntime(2109): at android.os.Looper.loop(Looper.java:137)
E/AndroidRuntime(2109): at android.os.HandlerThread.run(HandlerThread.java:60)

What's going on?

Thanks.
R      

Bump.

Anyone looking at this?      

Noticed this wasn't replied to here.

Looking at the code, the event handling code is not locked against changing the event receiver in this case. This error would occur at certain timings if you unsubscribe the event receiver during an event being processed. For now, an easy way to avoid this problem is by not unsubscribing from events unless the device is dead or released. You can re-subscribe with an empty method to work around this.      

Which case is "this case"?

I use:
and

so I would like to only have to work around the broken one.

Thanks.
R      

All of the BikePowerPCC event handling code is susceptible to this bug. So both events you mention are included. As I said before I would suggest subscribing with a blank method or waiting until release as the recommended behaviour.      

The functions were not designed to be called more than once. Null as a callback is bad params in this case. Unfortunately for your request, there is no update to allow null params coming in the near future.