Merge "Avoid NPE when installing app update." into jb-mr1-dev

src/com/android/settings/applications/InstalledAppDetails.java

@@ -568,6 +568,7 @@ public class InstalledAppDetails extends Fragment
             }
         }
         mAppEntry = mState.getEntry(packageName);
+        if (mAppEntry != null) {
             // Get application info again to refresh changed properties of application
             try {
                 mPackageInfo = mPm.getPackageInfo(mAppEntry.info.packageName,
@@ -577,6 +578,10 @@ public class InstalledAppDetails extends Fragment
             } catch (NameNotFoundException e) {
                 Log.e(TAG, "Exception when retrieving package:" + mAppEntry.info.packageName, e);
             }
+        } else {
+            Log.w(TAG, "Missing AppEntry; maybe reinstalling?");
+            mPackageInfo = null;
+        }
 
         return packageName;
     }