From 1a12ce7cc706cabe73a6054dd29adaea8bc8c0a5 Mon Sep 17 00:00:00 2001
From: Johnny Lim <izeye@naver.com>
Date: Wed, 19 Oct 2022 00:06:21 +0900
Subject: [PATCH] Add KeyValue.of() variants for none values

See gh-3458
---
 .../java/io/micrometer/common/KeyValue.java    | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/micrometer-commons/src/main/java/io/micrometer/common/KeyValue.java b/micrometer-commons/src/main/java/io/micrometer/common/KeyValue.java
index 0d59132cc8..83fae2d3b8 100644
--- a/micrometer-commons/src/main/java/io/micrometer/common/KeyValue.java
+++ b/micrometer-commons/src/main/java/io/micrometer/common/KeyValue.java
@@ -57,6 +57,24 @@ static KeyValue of(KeyName keyName, String value) {
         return KeyValue.of(keyName.asString(), value);
     }
 
+    /**
+     * Creates a {@link KeyValue} for the given key and {@value NONE_VALUE}.
+     * @param key key of the KeyValue
+     * @return KeyValue
+     */
+    static KeyValue of(String key) {
+        return of(key, NONE_VALUE);
+    }
+
+    /**
+     * Creates a {@link KeyValue} for the given {@link KeyName} and {@value NONE_VALUE}.
+     * @param keyName name of the key of the KeyValue
+     * @return KeyValue
+     */
+    static KeyValue of(KeyName keyName) {
+        return of(keyName, NONE_VALUE);
+    }
+
     /**
      * Creates a {@link KeyValue} for the given key and value and additionally validates
      * it with the {@link Predicate}.