add testcase for issue #2392

core/src/test/java/com/alibaba/fastjson2/issues_2300/Issue2392.java

@@ -0,0 +1,23 @@
+package com.alibaba.fastjson2.issues_2300;
+
+import com.alibaba.fastjson2.JSONB;
+import com.alibaba.fastjson2.JSONReader;
+import com.alibaba.fastjson2.JSONWriter;
+import org.junit.jupiter.api.Test;
+
+import java.lang.reflect.Constructor;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class Issue2392 {
+    @Test
+    public void test() throws Exception {
+        Class<?> clazz = Class.forName("kotlin.collections.EmptyList");
+        Constructor<?> constructor = clazz.getDeclaredConstructor();
+        constructor.setAccessible(true);
+        Object object = constructor.newInstance();
+        byte[] bytes = JSONB.toBytes(object, JSONWriter.Feature.WriteClassName);
+        Object parsed = JSONB.parseObject(bytes, Object.class, JSONReader.Feature.SupportAutoType);
+        assertEquals(clazz, parsed.getClass());
+    }
+}