Improved json to xml without attributes.

Author: javadev

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

@@ -3070,12 +3070,19 @@ private static Object makeReplaceNumberAndBoolean(Object value) {
         if (value instanceof List) {
             List<Object> values = newArrayList();
             for (Object item : (List) value) {
-                values.add(
-                        item instanceof Map ? replaceNumberAndBooleanWithString((Map) item) : item);
+                if (item instanceof Map) {
+                    values.add(replaceNumberAndBooleanWithString((Map) item));
+                } else if (item instanceof Number || item instanceof Boolean || isNull(item)) {
+                    values.add(String.valueOf(item));
+                } else {
+                    values.add(item);
+                }
             }
             result = values;
         } else if (value instanceof Map) {
             result = replaceNumberAndBooleanWithString((Map) value);
+        } else if (isNull(value)) {
+            result = "null";
         } else {
             result = value;
         }

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

@@ -1092,21 +1092,33 @@ void forceRemoveArrayTrue() {
     void forceRemoveArrayTrueBooleanAndNumber() {
         assertEquals(
                 "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
-                        + "<data>\n"
-                        + "  <a>b</a>\n"
-                        + "  <c>true</c>\n"
-                        + "  <d>1</d>\n"
-                        + "  <e></e>\n"
-                        + "</data>",
+                        + "<root>\n"
+                        + "  <data>\n"
+                        + "    <a>b</a>\n"
+                        + "    <c>true</c>\n"
+                        + "    <d>1</d>\n"
+                        + "    <e></e>\n"
+                        + "    <f>null</f>\n"
+                        + "  </data>\n"
+                        + "  <data2>true</data2>\n"
+                        + "  <data2>1</data2>\n"
+                        + "  <data2>null</data2>\n"
+                        + "</root>",
                 U.jsonToXml(
                         "{\n"
                                 + "  \"data\": [\n"
                                 + "    {\n"
                                 + "      \"a\": \"b\",\n"
                                 + "      \"c\": true,\n"
                                 + "      \"d\": 1,\n"
-                                + "      \"e\": {}\n"
+                                + "      \"e\": {},\n"
+                                + "      \"f\": null\n"
                                 + "    }\n"
+                                + "  ],\n"
+                                + "  \"data2\": [\n"
+                                + "      true,\n"
+                                + "      1,\n"
+                                + "      null\n"
                                 + "  ]\n"
                                 + "}",
                         U.Mode.FORCE_REMOVE_ARRAY_BOOLEAN_NUMBER_ATTRIBUTES_JSON_TO_XML));