From fd0cca358653dc970683bdc32e9ae5a928576806 Mon Sep 17 00:00:00 2001
From: Robert Lichtenberger <r.lichtenberger@synedra.com>
Date: Fri, 21 Mar 2025 10:12:03 +0100
Subject: [PATCH] Fix cloning of parser configuration.

---
 src/main/java/org/json/JSONParserConfiguration.java       | 1 +
 .../java/org/json/junit/JSONParserConfigurationTest.java  | 8 ++++++++
 2 files changed, 9 insertions(+)

diff --git a/src/main/java/org/json/JSONParserConfiguration.java b/src/main/java/org/json/JSONParserConfiguration.java
index 550eedf..0cfa2ea 100644
--- a/src/main/java/org/json/JSONParserConfiguration.java
+++ b/src/main/java/org/json/JSONParserConfiguration.java
@@ -37,6 +37,7 @@ public class JSONParserConfiguration extends ParserConfiguration {
         clone.strictMode = strictMode;
         clone.maxNestingDepth = maxNestingDepth;
         clone.keepStrings = keepStrings;
+        clone.useNativeNulls = useNativeNulls;
         return clone;
     }
 
diff --git a/src/test/java/org/json/junit/JSONParserConfigurationTest.java b/src/test/java/org/json/junit/JSONParserConfigurationTest.java
index 0ecf938..926c49f 100644
--- a/src/test/java/org/json/junit/JSONParserConfigurationTest.java
+++ b/src/test/java/org/json/junit/JSONParserConfigurationTest.java
@@ -53,6 +53,14 @@ public class JSONParserConfigurationTest {
 
         assertTrue(jsonParserConfiguration.isKeepStrings());
     }
+    
+    @Test
+    public void useNativeNullsIsCloned() {
+        JSONParserConfiguration jsonParserConfiguration = new JSONParserConfiguration()
+                .withUseNativeNulls(true)
+                .withStrictMode(true);
+        assertTrue(jsonParserConfiguration.isUseNativeNulls());
+    }
 
     @Test
     public void verifyDuplicateKeyThenMaxDepth() {