improved lambda function serialize support, for issue #1290

alibaba · Apr 12, 2023 · 5144961 · 5144961
1 parent 91d1f3e
commit 5144961
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Showing 2 changed files with 14 additions and 1 deletion.
diff --git a/core/src/main/java/com/alibaba/fastjson2/writer/ObjectWriterCreatorASM.java b/core/src/main/java/com/alibaba/fastjson2/writer/ObjectWriterCreatorASM.java
@@ -447,7 +447,7 @@ boolean record = BeanUtils.isRecord(objectClass);
             }
         }
 
-        if (objectClass.getSuperclass() == Object.class && fieldWriters.isEmpty()) {
+        if (objectClass.getSuperclass() == Object.class) {
             String simpleName = objectClass.getSimpleName();
             if (simpleName.indexOf('$') != -1 && simpleName.contains("$$")) {
                 match = false;

diff --git a/core/src/test/java/com/alibaba/fastjson2/issues_1000/Issue1290.java b/core/src/test/java/com/alibaba/fastjson2/issues_1000/Issue1290.java
@@ -20,4 +20,17 @@ public void test() {
     public static class Bean {
         public Object function;
     }
+
+    @Test
+    public void test1() {
+        IntFunction function = (int i) -> Integer.valueOf(i);
+        Bean1 bean = new Bean1();
+        bean.functions = new Object[] {function};
+        String str = JSON.toJSONString(bean);
+        assertEquals("{\"functions\":[{}]}", str);
+    }
+
+    public static class Bean1 {
+        public Object[] functions;
+    }
 }