Removed use of JAXB (#327).

src/main/java/org/gitlab4j/api/services/HipChatService.java

 package org.gitlab4j.api.services;
 
-import javax.xml.bind.annotation.XmlAccessType;
-import javax.xml.bind.annotation.XmlAccessorType;
-import javax.xml.bind.annotation.XmlRootElement;
-
 import com.fasterxml.jackson.annotation.JsonIgnore;
 
-@XmlRootElement
-@XmlAccessorType(XmlAccessType.FIELD)
 public class HipChatService extends NotificationService {
 
     public static final String TOKEN_PROP = "token";

src/main/java/org/gitlab4j/api/services/JiraService.java

@@ -2,14 +2,8 @@ package org.gitlab4j.api.services;
 
 import java.util.Map;
 
-import javax.xml.bind.annotation.XmlAccessType;
-import javax.xml.bind.annotation.XmlAccessorType;
-import javax.xml.bind.annotation.XmlRootElement;
-
 import com.fasterxml.jackson.annotation.JsonIgnore;
 
-@XmlRootElement
-@XmlAccessorType(XmlAccessType.FIELD)
 public class JiraService extends NotificationService {
 
     public static final String URL_PROP = "url";

src/main/java/org/gitlab4j/api/services/NotificationService.java

@@ -4,12 +4,8 @@ import java.util.Date;
 import java.util.HashMap;
 import java.util.Map;
 
-import javax.xml.bind.annotation.XmlAccessType;
-import javax.xml.bind.annotation.XmlAccessorType;
-
 import com.fasterxml.jackson.annotation.JsonIgnore;
 
-@XmlAccessorType(XmlAccessType.FIELD)
 public abstract class NotificationService {
 
     private Integer id;

src/main/java/org/gitlab4j/api/services/SlackService.java

 package org.gitlab4j.api.services;
 
-import javax.xml.bind.annotation.XmlAccessType;
-import javax.xml.bind.annotation.XmlAccessorType;
-import javax.xml.bind.annotation.XmlRootElement;
-
 import com.fasterxml.jackson.annotation.JsonIgnore;
 
-@XmlRootElement
-@XmlAccessorType(XmlAccessType.FIELD)
 public class SlackService extends NotificationService {
 
     public static final String WEBHOOK_PROP = "webhook";

src/main/java/org/gitlab4j/api/systemhooks/GroupMemberSystemHookEvent.java

@@ -2,14 +2,8 @@ package org.gitlab4j.api.systemhooks;
 
 import java.util.Date;
 
-import javax.xml.bind.annotation.XmlAccessType;
-import javax.xml.bind.annotation.XmlAccessorType;
-import javax.xml.bind.annotation.XmlRootElement;
-
 import org.gitlab4j.api.utils.JacksonJson;
 
-@XmlRootElement
-@XmlAccessorType(XmlAccessType.FIELD)
 public class GroupMemberSystemHookEvent extends AbstractSystemHookEvent {
 
     public static final String NEW_GROUP_MEMBER_EVENT = "user_add_to_group";

src/main/java/org/gitlab4j/api/systemhooks/GroupSystemHookEvent.java

@@ -2,14 +2,8 @@ package org.gitlab4j.api.systemhooks;
 
 import java.util.Date;
 
-import javax.xml.bind.annotation.XmlAccessType;
-import javax.xml.bind.annotation.XmlAccessorType;
-import javax.xml.bind.annotation.XmlRootElement;
-
 import org.gitlab4j.api.utils.JacksonJson;
 
-@XmlRootElement
-@XmlAccessorType(XmlAccessType.FIELD)
 public class GroupSystemHookEvent extends AbstractSystemHookEvent {
     
     public static final String GROUP_CREATE_EVENT = "group_create";

src/main/java/org/gitlab4j/api/systemhooks/KeySystemHookEvent.java

@@ -2,14 +2,8 @@ package org.gitlab4j.api.systemhooks;
 
 import java.util.Date;
 
-import javax.xml.bind.annotation.XmlAccessType;
-import javax.xml.bind.annotation.XmlAccessorType;
-import javax.xml.bind.annotation.XmlRootElement;
-
 import org.gitlab4j.api.utils.JacksonJson;
 
-@XmlRootElement
-@XmlAccessorType(XmlAccessType.FIELD)
 public class KeySystemHookEvent extends AbstractSystemHookEvent {
     
     public static final String KEY_CREATE_EVENT = "key_create";

src/main/java/org/gitlab4j/api/systemhooks/ProjectSystemHookEvent.java

@@ -2,15 +2,9 @@ package org.gitlab4j.api.systemhooks;
 
 import java.util.Date;
 
-import javax.xml.bind.annotation.XmlAccessType;
-import javax.xml.bind.annotation.XmlAccessorType;
-import javax.xml.bind.annotation.XmlRootElement;
-
 import org.gitlab4j.api.models.Visibility;
 import org.gitlab4j.api.utils.JacksonJson;
 
-@XmlRootElement
-@XmlAccessorType(XmlAccessType.FIELD)
 public class ProjectSystemHookEvent extends AbstractSystemHookEvent {
     
     public static final String PROJECT_CREATE_EVENT = "project_create";

src/main/java/org/gitlab4j/api/systemhooks/PushSystemHookEvent.java

 package org.gitlab4j.api.systemhooks;
 
-import javax.xml.bind.annotation.XmlAccessType;
-import javax.xml.bind.annotation.XmlAccessorType;
-import javax.xml.bind.annotation.XmlRootElement;
-
 import org.gitlab4j.api.utils.JacksonJson;
 import org.gitlab4j.api.webhook.AbstractPushEvent;
 
-@XmlRootElement
-@XmlAccessorType(XmlAccessType.FIELD)
 public class PushSystemHookEvent extends AbstractPushEvent implements SystemHookEvent {
 
     public static final String PUSH_EVENT = "push";

src/main/java/org/gitlab4j/api/systemhooks/RepositoryChange.java

 package org.gitlab4j.api.systemhooks;
 
-import javax.xml.bind.annotation.XmlAccessType;
-import javax.xml.bind.annotation.XmlAccessorType;
-import javax.xml.bind.annotation.XmlRootElement;
-
 import org.gitlab4j.api.utils.JacksonJson;
 
-@XmlRootElement
-@XmlAccessorType(XmlAccessType.FIELD)
 public class RepositoryChange {
 
     private String after;

src/main/java/org/gitlab4j/api/systemhooks/RepositorySystemHookEvent.java

@@ -2,15 +2,9 @@ package org.gitlab4j.api.systemhooks;
 
 import java.util.List;
 
-import javax.xml.bind.annotation.XmlAccessType;
-import javax.xml.bind.annotation.XmlAccessorType;
-import javax.xml.bind.annotation.XmlRootElement;
-
 import org.gitlab4j.api.utils.JacksonJson;
 import org.gitlab4j.api.webhook.EventProject;
 
-@XmlRootElement
-@XmlAccessorType(XmlAccessType.FIELD)
 public class RepositorySystemHookEvent extends AbstractSystemHookEvent {
 
     public static final String REPOSITORY_UPDATE_EVENT = "repository_update";

src/main/java/org/gitlab4j/api/systemhooks/SystemHookListener.java

@@ -78,4 +78,12 @@ public interface SystemHookListener extends java.util.EventListener {
      */
     default void onRepositoryEvent(RepositorySystemHookEvent event) {
     }
+
+    /**
+     * This method is called when a System Hook merge_request event has been received.
+     *
+     * @param event the MergeRequestSystemHookEvent instance containing info on the key event
+     */
+    default void onMergeRequestEvent(MergeRequestSystemHookEvent event) {
+    }
 }

src/main/java/org/gitlab4j/api/systemhooks/TagPushSystemHookEvent.java

 package org.gitlab4j.api.systemhooks;
 
-import javax.xml.bind.annotation.XmlAccessType;
-import javax.xml.bind.annotation.XmlAccessorType;
-import javax.xml.bind.annotation.XmlRootElement;
-
 import org.gitlab4j.api.utils.JacksonJson;
 import org.gitlab4j.api.webhook.AbstractPushEvent;
 
-@XmlRootElement
-@XmlAccessorType(XmlAccessType.FIELD)
 public class TagPushSystemHookEvent extends AbstractPushEvent implements SystemHookEvent {
 
     public static final String TAG_PUSH_EVENT = "tag_push";

src/main/java/org/gitlab4j/api/systemhooks/TeamMemberSystemHookEvent.java

@@ -2,15 +2,9 @@ package org.gitlab4j.api.systemhooks;
 
 import java.util.Date;
 
-import javax.xml.bind.annotation.XmlAccessType;
-import javax.xml.bind.annotation.XmlAccessorType;
-import javax.xml.bind.annotation.XmlRootElement;
-
 import org.gitlab4j.api.models.Visibility;
 import org.gitlab4j.api.utils.JacksonJson;
 
-@XmlRootElement
-@XmlAccessorType(XmlAccessType.FIELD)
 public class TeamMemberSystemHookEvent extends AbstractSystemHookEvent {
     
     public static final String NEW_TEAM_MEMBER_EVENT = "user_add_to_team";

src/main/java/org/gitlab4j/api/systemhooks/UserSystemHookEvent.java

@@ -2,14 +2,8 @@ package org.gitlab4j.api.systemhooks;
 
 import java.util.Date;
 
-import javax.xml.bind.annotation.XmlAccessType;
-import javax.xml.bind.annotation.XmlAccessorType;
-import javax.xml.bind.annotation.XmlRootElement;
-
 import org.gitlab4j.api.utils.JacksonJson;
 
-@XmlRootElement
-@XmlAccessorType(XmlAccessType.FIELD)
 public class UserSystemHookEvent extends AbstractSystemHookEvent {
     
     public static final String USER_CREATE_EVENT = "user_create";

src/main/java/org/gitlab4j/api/webhook/AbstractPushEvent.java

@@ -2,12 +2,8 @@ package org.gitlab4j.api.webhook;
 
 import java.util.List;
 
-import javax.xml.bind.annotation.XmlAccessType;
-import javax.xml.bind.annotation.XmlAccessorType;
-
 import com.fasterxml.jackson.annotation.JsonIgnore;
 
-@XmlAccessorType(XmlAccessType.FIELD)
 public abstract class AbstractPushEvent {
 
     private String eventName;

src/main/java/org/gitlab4j/api/webhook/BuildEvent.java

@@ -2,13 +2,9 @@ package org.gitlab4j.api.webhook;
 
 import java.util.Date;
 
-import javax.xml.bind.annotation.XmlAccessType;
-import javax.xml.bind.annotation.XmlAccessorType;
-
 import org.gitlab4j.api.models.User;
 import org.gitlab4j.api.utils.JacksonJson;
 
-@XmlAccessorType(XmlAccessType.FIELD)
 public class BuildEvent extends AbstractEvent {
 
     /** X-Gitlab-Event header value pre GitLab v9.3.0 */

src/main/java/org/gitlab4j/api/webhook/BuildEventCommit.java

@@ -2,12 +2,8 @@ package org.gitlab4j.api.webhook;
 
 import java.util.Date;
 
-import javax.xml.bind.annotation.XmlAccessType;
-import javax.xml.bind.annotation.XmlAccessorType;
-
 import org.gitlab4j.api.utils.JacksonJson;
 
-@XmlAccessorType(XmlAccessType.FIELD)
 public class BuildEventCommit {
 
     private Integer id;

src/main/java/org/gitlab4j/api/webhook/EventChanges.java

@@ -3,13 +3,9 @@ package org.gitlab4j.api.webhook;
 import java.util.Date;
 import java.util.List;
 
-import javax.xml.bind.annotation.XmlAccessType;
-import javax.xml.bind.annotation.XmlAccessorType;
-
 import org.gitlab4j.api.models.Assignee;
 import org.gitlab4j.api.utils.JacksonJson;
 
-@XmlAccessorType(XmlAccessType.FIELD)
 public class EventChanges {
 
     private ChangeContainer<Date> updatedAt;

src/main/java/org/gitlab4j/api/webhook/EventCommit.java

@@ -3,13 +3,9 @@ package org.gitlab4j.api.webhook;
 import java.util.Date;
 import java.util.List;
 
-import javax.xml.bind.annotation.XmlAccessType;
-import javax.xml.bind.annotation.XmlAccessorType;
-
 import org.gitlab4j.api.models.Author;
 import org.gitlab4j.api.utils.JacksonJson;
 
-@XmlAccessorType(XmlAccessType.FIELD)
 public class EventCommit {
 
     private String id;