Map<String, Object> typed serialization broken for Integer and Date objects

[costin3141]

I have the following example code:

---

public static void main( String[] args ) {
final Map<String, Object> map = new HashMap<>();
map.put( "Long", Long.valueOf( 179 ) );
map.put( "Integer", Integer.valueOf( 179 ) );
map.put( "Double", Double.valueOf( 179 ) );
map.put( "date", new Date() );

  final Map params = new HashMap();
  params.put(  JsonWriter.DATE_FORMAT, JsonWriter.ISO_DATE_TIME_FORMAT );
  
  final String str = JsonWriter.objectToJson( map, params );
  System.out.println( str + "\n" );
  
  final Map<String, Object> map2 = JsonReader.jsonToMaps( str );
  
  for( Entry<String, Object> entry : map2.entrySet() ) {
     System.out.println( entry.getKey() + " : " + entry.getValue() + " | " + entry.getValue().getClass().getSimpleName() );
  }

}

which produces the following:

{"@type":"java.util.HashMap","Integer":{"@type":"int","value":179},"date":{"@type":"date","value":"2017-08-16T12:23:18"},"Long":179,"Double":179.0}

Integer : {value=179} | JsonObject
date : {value=2017-08-16T12:23:18} | JsonObject
Long : 179 | Long
Double : 179.0 | Double

As you can see it fails deserializing the Integer object and the Date object. Interesting is that on serialization exactly these two objects have a different style of type information as the other objects. While Long object got type "Long" the Date object got "date" and Integer got "int".

Something seems broken here.

[costin3141]

Damn, that formatting here is also broken :(

[John DeRegnaucourt]

I will look into this, build tests, fix, and re-release. May take a few days.

[John DeRegnaucourt]

This has been fixed, test added, and released in 4.10.0.