From eba516b7f12b3e998b4fd18f85d5c08e4b6f52a7 Mon Sep 17 00:00:00 2001
From: Looly <loolly@gmail.com>
Date: Tue, 7 Jun 2022 15:43:40 +0800
Subject: [PATCH] fix bug

---
 hutool-json/src/main/java/cn/hutool/json/ObjectMapper.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/hutool-json/src/main/java/cn/hutool/json/ObjectMapper.java b/hutool-json/src/main/java/cn/hutool/json/ObjectMapper.java
index 659b69c5e..cc8592c2e 100755
--- a/hutool-json/src/main/java/cn/hutool/json/ObjectMapper.java
+++ b/hutool-json/src/main/java/cn/hutool/json/ObjectMapper.java
@@ -250,7 +250,9 @@ public class ObjectMapper {
 	 */
 	private static void mapFromBean(final Object bean, final JSONObject jsonObject, final Filter<MutableEntry<String, Object>> filter) {
 		final CopyOptions copyOptions = InternalJSONUtil.toCopyOptions(jsonObject.getConfig());
-		copyOptions.setFieldEditor((entry -> filter.accept(entry) ? entry : null));
+		if(null != filter){
+			copyOptions.setFieldEditor((entry -> filter.accept(entry) ? entry : null));
+		}
 		BeanUtil.beanToMap(bean, jsonObject, copyOptions);
 	}
 }