MsgBox2 causes android.util.AndroidRuntimeException

[thedesolatesoul]

Some of my code runs fine on a Froyo Emulator, but on ICS 4.0.4 (CM9 Nightly) I get the following exception.

From what I have read so far it seems that the same message is being posted twice in the message queue.

As download/upload transfers are happening in the background (with a possible timer running too), I show a messagebox to confirm deleting download history. At that point this exception is generated:

android.util.AndroidRuntimeException: { what=0 when=-12h1m24s814ms } This message is already in use.
    at android.os.MessageQueue.enqueueMessage(MessageQueue.java:187)
    at android.os.Handler.sendMessageAtTime(Handler.java:473)
    at android.os.Handler.sendMessageDelayed(Handler.java:446)
    at android.os.Handler.sendMessage(Handler.java:383)
    at anywheresoftware.b4a.Msgbox.waitForMessage(Msgbox.java:172)
    at anywheresoftware.b4a.Msgbox.msgbox(Msgbox.java:127)
    at anywheresoftware.b4a.keywords.Common.Msgbox2(Common.java:404)
    at com.maximus.dropboxexample.main._clearalltransfers(main.java:1286)
    at com.maximus.dropboxexample.main._ab_itemclicked(main.java:328)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:511)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:105)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:93)
    at anywheresoftware.b4a.BA.raiseEvent(BA.java:89)
    at de.amberhome.SimpleActionBar.ActionBar$Action.select(ActionBar.java:1683)
    at de.amberhome.SimpleActionBar.ActionBar$2.onClick(ActionBar.java:262)
    at android.view.View.performClick(View.java:3511)
    at android.view.View$PerformClick.run(View.java:14105)
    at android.os.Handler.handleCallback(Handler.java:605)
    at android.os.Handler.dispatchMessage(Handler.java:92)
    at android.os.Looper.loop(Looper.java:137)
    at android.app.ActivityThread.main(ActivityThread.java:4424)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:511)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:787)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:554)
    at dalvik.system.NativeStart.main(Native Method)

Later on I also get this one, but I think its harmless:

libcore.io.ErrnoException: kill failed: ESRCH (No such process)
    at libcore.io.Posix.kill(Native Method)
    at libcore.io.ForwardingOs.kill(ForwardingOs.java:77)
    at java.lang.ProcessManager$ProcessImpl.destroy(ProcessManager.java:257)
    at anywheresoftware.b4a.phone.Phone$LogCat.LogCatStop(Phone.java:758)
    at anywheresoftware.b4a.b4abridge.service1._stoplogcat(service1.java:510)
    at anywheresoftware.b4a.b4abridge.service1._streams_newdata(service1.java:565)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:511)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:136)
    at anywheresoftware.b4a.BA$2.run(BA.java:244)
    at android.os.Handler.handleCallback(Handler.java:605)
    at android.os.Handler.dispatchMessage(Handler.java:92)
    at android.os.Looper.loop(Looper.java:137)
    at android.app.ActivityThread.main(ActivityThread.java:4424)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:511)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:787)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:554)
    at dalvik.system.NativeStart.main(Native Method)

[margret]

I am running ICS 4.0.3 and do not see this error with the msgbox2(). I know this does not help but wanted to give you feedback from my end.

[Erel]

Android 4.0.3 changes the way that internal messages are handled. I'm familiar with a different issue which is probably related to this one.
The fix might require a library update.

Can you create a small project that demonstrates this issue?
It should be something simple with a msgbox shown inside the ActionBar click event.

[corwin42]

I think in the german forum someone posted a similar problem. See here

[Erel]

It is indeed related. However I want to make sure that this issue is the same. So a test project will still be useful.

The fix will require an update to existing libraries. However the update should be simple.

[thedesolatesoul]

It took me a while to reproduce this. Nothing to do with the action bar.
It actually crashes with HttpUtils.
Here is a small example that crashes on ICS for me.
Press the 'Start Timer' button, and then immediately press ''Show Messagebox'.
The unfiltered logs will show the exception.

Also, Erel I am using B4A 1.6 (Core library version 1.57)

Test Device: ICS 4.0.4 (CM9 Nightly) on a Samsung Galaxy S

For now, I am thinking of a non-modal messagebox as a workaround, which raises an event on dismissal.

[Erel]

I'm unable to reproduce it. I've tested it with the emulator (which did reproduce the other 4.0.3 related issues). Can other members please test this?

[Ricky D]

Erel, I'm running android 4.0.3 and b4a 1.8.

What do I need to do to test this?

Regards, Ricky

[Erel]

Download the example, press on the Timer button and then on the second button.

[Ricky D]

I'll do that when I get home after work