From dfa34cd517dfb794e31598211ed0fc8a419ddc28 Mon Sep 17 00:00:00 2001
From: louis_chang <louis_chang@htc.com>
Date: Thu, 31 Jul 2014 10:47:45 +0800
Subject: [PATCH] Avoid system server crash due to package removed

Cherry-picked from aosp.

Fixes bug 18593178.

Symptom:
When application is not responding, an ANR dialog will shown.
In certain timing, user uninstall the application when the ANR
occurs, but before ANR dialog shown. The system server will crash
when looking up the errorReportReceiver because the package is removed.

Here shows how the exception occurs.
java.lang.IllegalArgumentException: Unknown package: app.package.name
 at com.android.server.pm.Settings.getInstallerPackageNameLPr
 at com.android.server.pm.PackageManagerService.getInstallerPackageName
 at android.app.ApplicationPackageManager.getInstallerPackageName
 at android.app.ApplicationErrorReport.getErrorReportReceiver
 at com.android.server.am.ActivityManagerService.startAppProblemLocked
 at com.android.server.am.ActivityManagerService.makeAppNotRespondingLocked
 at com.android.server.am.ActivityManagerService.appNotResponding

Change-Id: Iced4287bd44dc25b1db2c1e3a583892eb6c041a2
---
 .../android/app/ApplicationErrorReport.java    | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/core/java/android/app/ApplicationErrorReport.java b/core/java/android/app/ApplicationErrorReport.java
index 49ab7c12cdca5..6c2511eef357c 100644
--- a/core/java/android/app/ApplicationErrorReport.java
+++ b/core/java/android/app/ApplicationErrorReport.java
@@ -168,10 +168,20 @@ public class ApplicationErrorReport implements Parcelable {
         PackageManager pm = context.getPackageManager();
 
         // look for receiver in the installer package
-        String candidate = pm.getInstallerPackageName(packageName);
-        ComponentName result = getErrorReportReceiver(pm, packageName, candidate);
-        if (result != null) {
-            return result;
+        String candidate = null;
+        ComponentName result = null;
+
+        try {
+            candidate = pm.getInstallerPackageName(packageName);
+        } catch (IllegalArgumentException e) {
+            // the package could already removed
+        }
+
+        if (candidate != null) {
+            result = getErrorReportReceiver(pm, packageName, candidate);
+            if (result != null) {
+                return result;
+            }
         }
 
         // if the error app is on the system image, look for system apps