Fix issue #4081756: Crash when un-stopping applications

Change-Id: Ifc23481f8feaeacb410375eefd015ebdb997e39c
diff --git a/services/java/com/android/server/am/ActivityStack.java b/services/java/com/android/server/am/ActivityStack.java
index 3a613bb..c087aecf 100644
--- a/services/java/com/android/server/am/ActivityStack.java
+++ b/services/java/com/android/server/am/ActivityStack.java
@@ -1299,6 +1299,9 @@
             AppGlobals.getPackageManager().setPackageStoppedState(
                     next.packageName, false);
         } catch (RemoteException e1) {
+        } catch (IllegalArgumentException e) {
+            Slog.w(TAG, "Failed trying to unstop package "
+                    + next.packageName + ": " + e);
         }
 
         // We are starting up the next activity, so tell the window manager