[#14061] - Ajax call problem due to upgrade to JasperReport V6.19.0

Update from JasperReport V6.18.1 to V6.19.0. Firing a ajax request from page to controller. I find that ajax function cannot receive data returning from controller. This issue did not occur when I downgrade back to V6.18.1 or even V6.17.0.

My dependency is:
<dependency>
<groupId>net.sf.jasperreports</groupId>
<artifactId>jasperreports</artifactId>
<version>6.19.0</version>
</dependency>
<dependency>
<groupId>net.sf.jasperreports</groupId>
<artifactId>jasperreports-fonts</artifactId>
<version>6.19.0</version>
</dependency>

Js part:
$.ajax({
url : url,
success : function(data) {
if (data.status == 'success') {
$("#text").html(data.text);
} else {
$("#text").css("color", "red");
$("#text").html(data.message.toUpperCase());
alert(data.message);
}
},
error : function(error) {
alert(error.responseText);
}
});

controller part:

@GetMapping("...url")
public ResponseEntity<HashMap<String, Object>> getCurrentSystemYear() {
HashMap<String, Object> map = new HashMap<>();
map.put("status", "success");
map.put("message","testing...");

return new ResponseEntity<>(map, HttpStatus.OK);
}