Use correct names when serializing object

The minFraud tests do this and these new fields should be consistent
with the other fields.

Author: oschwald

CHANGELOG.md

@@ -1,6 +1,13 @@
 CHANGELOG
 =========
 
+2.16.1 (2021-11-18)
+-------------------
+
+* Added `JsonProperty` annotations to `getMobileCountryCode()` and
+  `getMobileNetworkCode()` so that it is possible to serialize the
+  object as JSON and then deserialize without losing data.
+
 2.16.0 (2021-11-18)
 -------------------
 

src/main/java/com/maxmind/geoip2/model/IspResponse.java

@@ -139,6 +139,7 @@ public String getIsp() {
      * This property is available from the City and Insights web services and
      * the GeoIP2 Enterprise database.
      */
+    @JsonProperty("mobile_country_code")
     public String getMobileCountryCode() {
         return this.mobileCountryCode;
     }
@@ -149,6 +150,7 @@ public String getMobileCountryCode() {
      * This property is available from the City and Insights web services and
      * the GeoIP2 Enterprise database.
      */
+    @JsonProperty("mobile_network_code")
     public String getMobileNetworkCode() {
         return this.mobileNetworkCode;
     }

src/main/java/com/maxmind/geoip2/record/Traits.java

@@ -553,6 +553,7 @@ public boolean isTorExitNode() {
      * This property is available from the City and Insights web services and
      * the GeoIP2 Enterprise database.
      */
+    @JsonProperty("mobile_country_code")
     public String getMobileCountryCode() {
         return this.mobileCountryCode;
     }
@@ -563,6 +564,7 @@ public String getMobileCountryCode() {
      * This property is available from the City and Insights web services and
      * the GeoIP2 Enterprise database.
      */
+    @JsonProperty("mobile_network_code")
     public String getMobileNetworkCode() {
         return this.mobileNetworkCode;
     }