Fixed the Comment parsing errors when the type field is absent

Author: aleksei-averchenko-wise

src/main/java/org/zendesk/client/v2/model/Comment.java

@@ -3,6 +3,7 @@
 import static com.fasterxml.jackson.annotation.JsonTypeInfo.As.EXTERNAL_PROPERTY;
 import static com.fasterxml.jackson.annotation.JsonTypeInfo.Id.NAME;
 
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonSubTypes;
 import com.fasterxml.jackson.annotation.JsonTypeInfo;
@@ -16,12 +17,18 @@
  * @author stephenc
  * @since 09/04/2013 15:09
  */
-@JsonTypeInfo(use = NAME, include = EXTERNAL_PROPERTY, property = "type", visible = true)
+@JsonTypeInfo(
+    use = NAME,
+    include = EXTERNAL_PROPERTY,
+    property = "type",
+    defaultImpl = Comment.class,
+    visible = true)
 @JsonSubTypes({
   @JsonSubTypes.Type(value = Comment.class, name = "Comment"),
   @JsonSubTypes.Type(value = VoiceComment.class, name = "VoiceComment"),
   @JsonSubTypes.Type(value = VoiceComment.class, name = "TpeVoiceComment")
 })
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Comment implements Serializable {
 
   private static final long serialVersionUID = 1L;

src/main/java/org/zendesk/client/v2/model/comments/VoiceComment.java

@@ -1,8 +1,10 @@
 package org.zendesk.client.v2.model.comments;
 
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import org.zendesk.client.v2.model.Comment;
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class VoiceComment extends Comment {
 
   private VoiceCommentData data;