From d5b00f1260e9f4c1d3d11533472930a809e643ff Mon Sep 17 00:00:00 2001
From: Gregg Kellogg <gregg@greggkellogg.net>
Date: Sun, 4 Aug 2024 14:12:04 -0700
Subject: [PATCH] In URI#freeze, synchronize mutex before checking for frozen?
 This was a race condition.

---
 lib/rdf/model/uri.rb | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/rdf/model/uri.rb b/lib/rdf/model/uri.rb
index a1b823f8..9d53b440 100644
--- a/lib/rdf/model/uri.rb
+++ b/lib/rdf/model/uri.rb
@@ -716,8 +716,8 @@ def dup
     ##
     # @private
     def freeze
-      unless frozen?
-        @mutex.synchronize do
+      @mutex.synchronize do
+        unless frozen?
           # Create derived components
           authority; userinfo; user; password; host; port
           @value  = value.freeze