coordinate system - Obtaining longitude and latitude from GeoTIFF with geotools

Continuing what is written in this post, I have another question:

for each point (X, Y) of my GEOTIFF file I extract the coordinates as follows:

Envelope2D pixelEnvelop = geometry.gridToWorld(new GridEnvelope2D(x, y, 1, 1));

double[] coords = new double[]{pixelEnvelop.getCenterX(), pixelEnvelop.getCenterY()};

For example I obtain

-577460.1192321777, 640293.6331481934
-577460.1192321777, 639293.9553527832
... (and so on)

However, I would like to have latitude and longitude available. Is it possible to convert them?

For information, I print also the content of pixelEnvelop.getCoordinateReferenceSystem() method

PROJCS["unnamed", 
  GEOGCS["WGS 84", 

    DATUM["World Geodetic System 1984", 
      SPHEROID["WGS 84", 6378137.0, 298.257223563, AUTHORITY["EPSG","7030"]], 
      AUTHORITY["EPSG","6326"]], 
    PRIMEM["Greenwich", 0.0, AUTHORITY["EPSG","8901"]], 
    UNIT["degree", 0.017453292519943295], 
    AXIS["Geodetic longitude", EAST], 
    AXIS["Geodetic latitude", NORTH], 
    AUTHORITY["EPSG","4326"]], 
  PROJECTION["Transverse_Mercator"], 
  PARAMETER["central_meridian", 12.5], 

  PARAMETER["latitude_of_origin", 42.0], 
  PARAMETER["scale_factor", �], 
  PARAMETER["false_easting", 0.0], 
  PARAMETER["false_northing", 0.0], 
  UNIT["m", 1.0], 
  AXIS["Easting", EAST], 
  AXIS["Northing", NORTH]]

As you can see, scale_factor parameter does not contain a readable value.