Last Comment Bug 782096 - java.lang.NullPointerException: at android.os.Parcel.readException( on Galaxy Tab 7.7" (GT-P6800) with Honeycomb
: java.lang.NullPointerException: at android.os.Parcel.readException(Parcel.jav...
: crash
Product: Firefox for Android
Classification: Client Software
Component: Keyboards and IME (show other bugs)
: 15 Branch
: ARM Android
: -- critical (vote)
: Firefox 18
Assigned To: Chris Peterson [:cpeterson]
: Jim Chen [:jchen] [:darchons]
Depends on:
  Show dependency treegraph
Reported: 2012-08-12 00:27 PDT by Scoobidiver (away)
Modified: 2013-01-03 10:18 PST (History)
5 users (show)
See Also:
Crash Signature:
QA Whiteboard:
Iteration: ---
Points: ---
Has Regression Range: ---
Has STR: ---

catch-NPE.patch (2.27 KB, patch)
2012-08-30 11:33 PDT, Chris Peterson [:cpeterson]
snorp: review+
lukasblakk+bugs: approval‑mozilla‑aurora+
lukasblakk+bugs: approval‑mozilla‑beta+
Details | Diff | Splinter Review

Description Scoobidiver (away) 2012-08-12 00:27:58 PDT
There are 65 crashes in 15.0 Beta, including bp-c2304ebc-8734-4ed8-8c28-6f76f2120811.

	at android.os.Parcel.readException(
	at android.os.Parcel.readException(
	at android.view.inputmethod.InputMethodManager.hideSoftInputFromWindow(
	at android.view.inputmethod.InputMethodManager.hideSoftInputFromWindow(
	at org.mozilla.gecko.AwesomeBar$6.onFocusChange(
	at android.view.View.onFocusChanged(
	at android.widget.TextView.onFocusChanged(
	at android.widget.EditText.onFocusChanged(
	at android.view.View.unFocus(
	at android.view.ViewGroup.unFocus(
	at android.view.ViewGroup.requestChildFocus(
	at android.view.ViewGroup.requestChildFocus(
	at android.view.ViewGroup.requestChildFocus(
	at android.view.ViewGroup.requestChildFocus(
	at android.view.ViewGroup.requestChildFocus(
	at android.view.View.handleFocusGainInternal(
	at android.view.View.requestFocus(
	at android.view.View.requestFocus(
	at android.view.View.requestFocus(
	at android.widget.TabHost.onTouchModeChanged(
	at android.view.ViewTreeObserver.dispatchOnTouchModeChanged(
	at android.view.ViewRoot.ensureTouchModeLocally(
	at android.view.ViewRoot.ensureTouchMode(
	at android.view.View.requestFocusFromTouch(
	at org.mozilla.gecko.AwesomeBar.onKeyDown(
	at android.view.KeyEvent.dispatch(
	at android.view.ViewRoot.deliverKeyEventPostIme(
	at android.view.ViewRoot.handleMessage(
	at android.os.Handler.dispatchMessage(
	at android.os.Looper.loop(
	at java.lang.reflect.Method.invokeNative(Native Method)
	at java.lang.reflect.Method.invoke(
	at dalvik.system.NativeStart.main(Native Method)

More reports at:
Comment 1 Chris Peterson [:cpeterson] 2012-08-29 16:38:40 PDT
Curiously, these hideSoftInputFromWindow() crashes are all Galaxy Tab users running Android 3.2 (Honeycomb). 

The NPE is [re]thrown by Parcel.readException(), which means the original NPE was thrown from InputMethodManagerService's hideSoftInput(). I wonder if there was a bug in Honeycomb's InputMethodManagerService that was fixed in ICS? Our client should not be able to trigger NPEs in the service!
Comment 2 Chris Peterson [:cpeterson] 2012-08-30 11:33:51 PDT
Created attachment 656966 [details] [diff] [review]

Catch unexpected NullPointerException from InputMethodManagerService.
Comment 3 Chris Peterson [:cpeterson] 2012-09-04 14:25:50 PDT
(In reply to Chris Peterson (:cpeterson) from comment #2)
> Created attachment 656966 [details] [diff] [review]
> catch-NPE.patch
> Catch unexpected NullPointerException from InputMethodManagerService.

snorp, have you had a chance to review my fix for this InputMethodManagerService NullPointerException we discussed in last week's Bug Deep Dive meeting?
Comment 4 James Willcox (:snorp) ( 2012-09-05 09:57:08 PDT
Comment on attachment 656966 [details] [diff] [review]

Review of attachment 656966 [details] [diff] [review]:

Gross, but looks good.
Comment 5 Chris Peterson [:cpeterson] 2012-09-05 16:06:25 PDT
Comment 6 Ryan VanderMeulen [:RyanVM] 2012-09-05 19:36:10 PDT
Comment 7 Chris Peterson [:cpeterson] 2012-09-06 16:06:33 PDT
Comment on attachment 656966 [details] [diff] [review]

[Approval Request Comment]
Bug caused by (feature/regressing bug #): N/A
User impact if declined: Intermittent crashes for some Honeycomb tablet users. I suspect this is a bug in Honeycomb that was fixed in ICS+.
Testing completed (on m-c, etc.): Tested locally, BUT this is an intermittent bug I have not repro'd myself.
Risk to taking this patch (and alternatives if risky): Low risk. The code change simply catches a NullPointerException from Google code instead of crashing.
String or UUID changes made by this patch: N/A
Comment 8 Lukas Blakk [:lsblakk] use ?needinfo 2012-09-07 15:05:38 PDT
Comment on attachment 656966 [details] [diff] [review]

mobile-only, low risk, still early in beta - we can take this to branches.
Comment 9 Chris Peterson [:cpeterson] 2012-09-07 15:27:00 PDT
Comment 10 Chris Peterson [:cpeterson] 2012-09-07 15:27:25 PDT
Comment 11 Kevin Brosnan [:kbrosnan] 2013-01-02 11:48:06 PST
This is still crashing at about the same rate as mentioned in comment 0.
Comment 12 Mark Finkle (:mfinkle) (use needinfo?) 2013-01-03 10:18:14 PST
Let's open a new bug for this. The patch was landed and pushed all the way to beta.

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