From 2c1e036857e227dae74a72ca480f614757218784 Mon Sep 17 00:00:00 2001
From: embeddedt <42941056+embeddedt@users.noreply.github.com>
Date: Wed, 2 Aug 2023 14:59:52 -0400
Subject: [PATCH] Bail out early if empty map is passed to
 CanonizingStringMap.putAll

---
 .../java/org/embeddedt/modernfix/util/CanonizingStringMap.java  | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/common/src/main/java/org/embeddedt/modernfix/util/CanonizingStringMap.java b/common/src/main/java/org/embeddedt/modernfix/util/CanonizingStringMap.java
index 352492b1..845fbb1e 100644
--- a/common/src/main/java/org/embeddedt/modernfix/util/CanonizingStringMap.java
+++ b/common/src/main/java/org/embeddedt/modernfix/util/CanonizingStringMap.java
@@ -29,6 +29,8 @@ public class CanonizingStringMap<T> extends HashMap<String, T> {
 
     @Override
     public void putAll(Map<? extends String, ? extends T> m) {
+        if(m.isEmpty())
+            return;
         HashMap<String, T> tmp = new HashMap<>();
         m.forEach((k, v) -> tmp.put(intern(k), v));
         super.putAll(tmp);