Added new mode XmlToJsonMode.REPLACE_EMPTY_TAG_WITH_NULL_AND_MINUS_WITH_AT

Author: javadev

src/main/java/com/github/underscore/U.java

@@ -141,7 +141,8 @@ public enum XmlToJsonMode {
         REPLACE_EMPTY_TAG_WITH_STRING,
         REMOVE_FIRST_LEVEL,
         WITHOUT_NAMESPACES,
-        REPLACE_MINUS_WITH_AT
+        REPLACE_MINUS_WITH_AT,
+        REPLACE_EMPTY_TAG_WITH_NULL_AND_MINUS_WITH_AT
     }
 
     public enum JsonToXmlMode {
@@ -2701,6 +2702,13 @@ public static String xmlToJson(
                 result = Json.toJson(replaceEmptyValueWithNull((Map) object), identStep);
             } else if (mode == XmlToJsonMode.REPLACE_MINUS_WITH_AT) {
                 result = Json.toJson(replaceMinusWithAt((Map) object), identStep);
+            } else if (mode == XmlToJsonMode.REPLACE_EMPTY_TAG_WITH_NULL_AND_MINUS_WITH_AT) {
+                result =
+                        Json.toJson(
+                                replaceMinusWithAt(
+                                        replaceEmptyValueWithNull(
+                                                replaceSelfClosingWithNull((Map) object))),
+                                identStep);
             } else if (mode == XmlToJsonMode.REPLACE_EMPTY_TAG_WITH_NULL) {
                 result =
                         Json.toJson(
@@ -2978,6 +2986,9 @@ private static Object makeObjectSelfClose(Object value, String newValue) {
     }
 
     public static Map<String, Object> replaceMinusWithAt(Map<String, Object> map) {
+        if (map == null) {
+            return null;
+        }
         Map<String, Object> outMap = new LinkedHashMap<>();
         for (Map.Entry<String, Object> entry : map.entrySet()) {
             outMap.put(

src/test/java/com/github/underscore/LodashTest.java

@@ -981,6 +981,10 @@ void xmpToJson3() {
         list2.add(new ArrayList<Object>());
         map3.put("list", list2);
         U.replaceMinusWithAt(map3);
+        U.replaceMinusWithAt(null);
+        U.xmlToJson(
+                "<a c=\"1\"><b></b><b></b></a>",
+                U.XmlToJsonMode.REPLACE_EMPTY_TAG_WITH_NULL_AND_MINUS_WITH_AT);
     }
 
     @Test