Mods to support GitLab 8.

src/main/java/com/messners/gitlab/api/webhook/EventObject.java

@@ -6,7 +6,6 @@ import com.fasterxml.jackson.annotation.JsonSubTypes;
 import com.fasterxml.jackson.annotation.JsonTypeInfo;
 
 import javax.xml.bind.annotation.XmlAccessorType;
-import javax.xml.bind.annotation.XmlRootElement;
 
 @JsonTypeInfo(
     use = JsonTypeInfo.Id.NAME, 
@@ -19,9 +18,8 @@ import javax.xml.bind.annotation.XmlRootElement;
     @JsonSubTypes.Type(value = PushEvent.class, name = PushEvent.OBJECT_KIND),    
     @JsonSubTypes.Type(value = MergeRequestEvent.class, name = MergeRequestEvent.OBJECT_KIND)
 })
-@XmlRootElement
 @XmlAccessorType(XmlAccessType.FIELD)
-public class EventObject {
+public abstract class EventObject {
     
     public static enum ObjectKind {
         ISSUE, MERGE_REQUEST, PUSH;
@@ -35,7 +33,7 @@ public class EventObject {
     private ObjectKind objectKind;
 
     public ObjectKind getObjectKind() {
-        return this.objectKind;
+        return (this.objectKind);
     }
 
     public void setObjectKind(ObjectKind objectKind) {

src/main/java/com/messners/gitlab/api/webhook/IssueEvent.java

@@ -11,6 +11,7 @@ import com.messners.gitlab.api.models.User;
 @XmlAccessorType(XmlAccessType.FIELD)
 public class IssueEvent extends EventObject {
 
+    public static final String X_GITLAB_EVENT = "Issue Hook";
     public static final String OBJECT_KIND = "issue";
 
     private User user;

src/main/java/com/messners/gitlab/api/webhook/MergeRequestEvent.java

@@ -10,6 +10,7 @@ import com.messners.gitlab.api.models.Assignee;
 @XmlAccessorType(XmlAccessType.FIELD)
 public class MergeRequestEvent extends EventObject {
 
+    public static final String X_GITLAB_EVENT = "Merge Request Hook";
     public static final String OBJECT_KIND = "merge_request";
 
     private ObjectAttributes objectAttributes;

src/main/java/com/messners/gitlab/api/webhook/PushEvent.java

@@ -11,6 +11,7 @@ import com.fasterxml.jackson.annotation.JsonIgnore;
 @XmlAccessorType(XmlAccessType.FIELD)
 public class PushEvent extends EventObject {
     
+    public static final String X_GITLAB_EVENT = "Push Hook";
     public static final String OBJECT_KIND = "push";
 
     private String after;