Add NullPointerException to try/catch since it's possible to have such an error

getShortcutIconDrawable could return null "Method invocation 'getShortcutIconDrawable' may produce 'NullPointerException'" and it leads to the code crashing. Adding  NullPointerException as one of the exceptions in the try/catch would resolve this issue

Fix: 299525046
Test: verify after merging that the null pointer exception stops occurring
Flag: no flag
Change-Id: I52cfba9c7b08ea4e1b0f4506c461e79c3e91dc6c

src/com/android/launcher3/icons/ShortcutCachingLogic.java

@@ -107,7 +107,7 @@ public class ShortcutCachingLogic implements CachingLogic<ShortcutInfo> {
         try {
             return context.getSystemService(LauncherApps.class)
                     .getShortcutIconDrawable(shortcutInfo, density);
-        } catch (SecurityException | IllegalStateException e) {
+        } catch (SecurityException | IllegalStateException | NullPointerException e) {
             Log.e(TAG, "Failed to get shortcut icon", e);
             return null;
         }