update

alibaba · Apr 3, 2024 · abd0220 · abd0220
1 parent f15c674
commit abd0220
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/core/src/main/java/com/alibaba/fastjson2/reader/ObjectReaderCreator.java b/core/src/main/java/com/alibaba/fastjson2/reader/ObjectReaderCreator.java
@@ -3305,11 +3305,11 @@ private List<FieldReader> listOf(FieldReader fieldReader) {
     }
 
     private void putIfAbsent(Map<String, List<FieldReader>> fieldReaders, String fieldName, FieldReader fieldReader, Class objectClass) {
-        if (!fieldReaders.containsKey(fieldName)) {
+        List<FieldReader> origin = fieldReaders.get(fieldName);
+        if (origin == null) {
             fieldReaders.put(fieldName, listOf(fieldReader));
             return;
         }
-        List<FieldReader> origin = fieldReaders.get(fieldName);
         if (!fieldReader.isReadOnly()) {
             FieldReader finalReader = fieldReader;
             FieldReader sameReader = origin.stream().filter(o -> o.sameTo(finalReader)).findAny().orElse(null);