bugfix

src/main/java/com/alibaba/fastjson/serializer/EnumSerializer.java

@@ -34,7 +34,7 @@ public class EnumSerializer implements ObjectSerializer {
 
         if (serializer.isEnabled(SerializerFeature.WriteEnumUsingToString)) {
             Enum<?> e = (Enum<?>) object;
-            serializer.write(e.name());
+            serializer.write(e.toString());
         } else {
             Enum<?> e = (Enum<?>) object;
             out.writeInt(e.ordinal());

src/test/java/com/alibaba/json/bvt/bug/Bug_for_ruiqi.java

@@ -0,0 +1,44 @@
+package com.alibaba.json.bvt.bug;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import junit.framework.TestCase;
+
+import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson.serializer.SerializerFeature;
+
+public class Bug_for_ruiqi extends TestCase {
+
+    public void test_0() throws Exception {
+        Map<String, Enum> map = new HashMap<String, Enum>();
+        map.put("a", Enum.ENUM1);
+        map.put("b", Enum.ENUM1);
+
+        System.out.println(JSON.toJSONString(map, SerializerFeature.WriteEnumUsingToString));
+
+        System.out.println(JSON.toJSONString(map));
+
+    }
+
+    public static enum Enum {
+
+        ENUM1("name1"), ENUM2("name2");
+
+        private String name;
+
+        Enum(String name){
+            this.name = name;
+        }
+
+        public String getName() {
+            return name;
+        }
+
+        @Override
+        public String toString() {
+            return "name: " + name;
+        }
+    }
+
+}