From 18d64f963129ae374be9b5f3eaba7c4945860eb9 Mon Sep 17 00:00:00 2001
From: Michel Weststrate <mweststrate@fb.com>
Date: Fri, 13 May 2022 07:08:52 -0700
Subject: [PATCH] Fix NPE during search

Summary:
`getChilAt` can return `null` (see also line 671), probably when the UI changes during the inspection process. Added a null check that should protect against the failure reported in P501013941

Changelog: Fixed NPE during search in layout plugin (Android)

Reviewed By: lblasa

Differential Revision: D36369508

fbshipit-source-id: 1f066d1a73bdfe875d66f7200ded0d0776af8321
---
 .../flipper/plugins/inspector/InspectorFlipperPlugin.java      | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/android/src/main/java/com/facebook/flipper/plugins/inspector/InspectorFlipperPlugin.java b/android/src/main/java/com/facebook/flipper/plugins/inspector/InspectorFlipperPlugin.java
index 1ef66efc0..2b0fced5b 100644
--- a/android/src/main/java/com/facebook/flipper/plugins/inspector/InspectorFlipperPlugin.java
+++ b/android/src/main/java/com/facebook/flipper/plugins/inspector/InspectorFlipperPlugin.java
@@ -624,6 +624,9 @@ public class InspectorFlipperPlugin implements FlipperPlugin {
   }
 
   public SearchResultNode searchTree(String query, Object obj, boolean axEnabled) throws Exception {
+    if (obj == null) {
+      return null;
+    }
     final NodeDescriptor descriptor = descriptorForObject(obj);
     List<SearchResultNode> childTrees = null;
     boolean isMatch = descriptor.matches(query, obj);