About Same level same name become array elements Problems

[ecoccw]

Dear,

<alice><bob>charlie</bob><bob>david</bob></alice>

becomes
{ "alice": { "bob": [ "charlie", "david" ] } }

But When I Use like:
<alice><bob>charlie</bob><a>test</a><bob>david</bob></alice>

Why can becomes
{ "alice": { "bob": [ "charlie", "david" ]
,"a": "test" }}

I Get
{ "alice": { "bob": "charlie"
, "a": "test"
, "bob": "david" } }

Please Help.

[javadev]

It may be converted to this JSON

{
  "alice": {
    "bob": [
      "charlie",
      {
        "#item": {
          "a": "test"
        }
      },
      "david"
    ]
  },
  "#omit-xml-declaration": "yes"
}