From 5b003148680fafe3574741a4003f3e8e68c0a6fa Mon Sep 17 00:00:00 2001
From: Takashi Kokubun <takashikkbn@gmail.com>
Date: Tue, 19 Sep 2023 14:09:01 -0700
Subject: [PATCH] Ignore JRuby extension sync

Avoid alerting on failing with commits like
https://github.com/ruby/psych/commit/fb97d899c5a62b743159d5a3c77b0813d2cbf9b6
---
 tool/sync_default_gems.rb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tool/sync_default_gems.rb b/tool/sync_default_gems.rb
index e425965042..5f8a73448e 100755
--- a/tool/sync_default_gems.rb
+++ b/tool/sync_default_gems.rb
@@ -437,6 +437,7 @@ module SyncDefaultGems
       [^/]+ # top-level entries
       |\.git.*
       |bin/.*
+      |ext/.*\.java
       |rakelib/.*
       |test/(?:lib|fixtures)/.*
       |tool/.*