BigDecimal support

[dinee432]

How do I specify to use bigdecimal to handle numbers in gson? Below is the sample code and sample json string that I am trying to convert to a map.

`Type type = new TypeToken<Map<String, Object>>() { }.getType();
  Map<String, Object> data = new Gson().fromJson(strInput, type);`

Sample Json string :

[{
"Type":"Test",
"Amount":100231212111.00,
}]

The result I am getting is a map with double value for Amount. Please help to resolve this issue

[lyubomyr-shaydariv]

• The JSON document structure you provided does not match the type you declared in the type token. It should be List<Map<String, Object>>.
• Unfortunately, as of Gson 2.8.5 you cannot tell Gson to convert Object to a specific Number implementation.

[eamonnmcmanus]

Fixed by #1290.