Add implements Serializable to all model classes to support native image (GraalVM) (#1074)

---------

Co-authored-by: Jeremie Bresson <jeremie.bresson@unblu.com>

src/main/java/org/gitlab4j/api/models/Identity.java

@@ -2,7 +2,10 @@ package org.gitlab4j.api.models;
 
 import org.gitlab4j.api.utils.JacksonJson;
 
-public class Identity {
+import java.io.Serializable;
+
+public class Identity implements Serializable {
+    private static final long serialVersionUID = 1L;
 
     private String provider;
     private String externUid;

src/main/java/org/gitlab4j/api/models/ImpersonationToken.java

 package org.gitlab4j.api.models;
 
+import java.io.Serializable;
 import java.util.Date;
 import java.util.List;
 
@@ -9,7 +10,8 @@ import org.gitlab4j.api.utils.JacksonJsonEnumHelper;
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonValue;
 
-public class ImpersonationToken {
+public class ImpersonationToken implements Serializable {
+    private static final long serialVersionUID = 1L;
 
     /** Enum to specify the scope of an ImpersonationToken. */
     public enum Scope {

src/main/java/org/gitlab4j/api/models/ImportStatus.java

 package org.gitlab4j.api.models;
 
+import java.io.Serializable;
 import java.util.Date;
 
 import org.gitlab4j.api.utils.JacksonJson;
@@ -8,7 +9,8 @@ import org.gitlab4j.api.utils.JacksonJsonEnumHelper;
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonValue;
 
-public class ImportStatus {
+public class ImportStatus implements Serializable {
+    private static final long serialVersionUID = 1L;
 
     /**
      * Enum representing the status of the import.

src/main/java/org/gitlab4j/api/models/Issue.java

@@ -6,6 +6,7 @@ import java.util.Date;
 import org.gitlab4j.api.utils.JacksonJson;
 
 public class Issue extends AbstractIssue {
+    private static final long serialVersionUID = 1L;
 
     private Boolean subscribed;
 

src/main/java/org/gitlab4j/api/models/IssueEvent.java

@@ -5,7 +5,11 @@ import com.fasterxml.jackson.annotation.JsonValue;
 import org.gitlab4j.api.utils.JacksonJson;
 import org.gitlab4j.api.utils.JacksonJsonEnumHelper;
 
-public class IssueEvent {
+import java.io.Serializable;
+
+public class IssueEvent implements Serializable {
+    private static final long serialVersionUID = 1L;
+
     /** Enum to use for specifying the state events resource type. */
     public enum ResourceType {
 

src/main/java/org/gitlab4j/api/models/IssueFilter.java

 package org.gitlab4j.api.models;
 
 import com.fasterxml.jackson.annotation.JsonIgnore;
-import java.util.Date;
-import java.util.List;
 import org.gitlab4j.api.Constants;
 import org.gitlab4j.api.Constants.IssueOrderBy;
 import org.gitlab4j.api.Constants.IssueScope;
@@ -11,10 +9,15 @@ import org.gitlab4j.api.Constants.SortOrder;
 import org.gitlab4j.api.GitLabApiForm;
 import org.gitlab4j.api.utils.ISO8601;
 
+import java.io.Serializable;
+import java.util.Date;
+import java.util.List;
+
 /**
  *  This class is used to filter issues when getting lists of them.
  */
-public class IssueFilter {
+public class IssueFilter implements Serializable {
+    private static final long serialVersionUID = 1L;
 
     /**
      * Return only the milestone having the given iid.

src/main/java/org/gitlab4j/api/models/IssueLink.java

@@ -2,7 +2,10 @@ package org.gitlab4j.api.models;
 
 import org.gitlab4j.api.utils.JacksonJson;
 
-public class IssueLink {
+import java.io.Serializable;
+
+public class IssueLink implements Serializable {
+    private static final long serialVersionUID = 1L;
 
     private Issue sourceIssue;
     private Issue targetIssue;

src/main/java/org/gitlab4j/api/models/IssuesStatistics.java

@@ -4,7 +4,10 @@ import org.gitlab4j.api.utils.JacksonJson;
 
 import com.fasterxml.jackson.annotation.JsonIgnore;
 
-public class IssuesStatistics {
+import java.io.Serializable;
+
+public class IssuesStatistics implements Serializable {
+    private static final long serialVersionUID = 1L;
 
     private Statistics statistics;
 
@@ -21,7 +24,9 @@ public class IssuesStatistics {
         return (statistics != null ? statistics.counts : null);
     }
 
-    public static class Statistics {
+    public static class Statistics implements Serializable {
+        private static final long serialVersionUID = 1L;
+
         private Counts counts;
 
         public Counts getCounts() {
@@ -33,7 +38,9 @@ public class IssuesStatistics {
         }
     }
 
-    public static class Counts {
+    public static class Counts implements Serializable {
+
+        private static final long serialVersionUID = 1L;
 
         private Integer all;
         private Integer closed;

src/main/java/org/gitlab4j/api/models/IssuesStatisticsFilter.java

 package org.gitlab4j.api.models;
 
+import java.io.Serializable;
 import java.util.Date;
 import java.util.List;
 
@@ -13,7 +14,8 @@ import com.fasterxml.jackson.annotation.JsonIgnore;
 /**
  *  This class is used to filter issues when getting issue statistics. of them.
  */
-public class IssuesStatisticsFilter {
+public class IssuesStatisticsFilter implements Serializable {
+    private static final long serialVersionUID = 1L;
 
     private List<String> labels;
     private String milestone;

src/main/java/org/gitlab4j/api/models/Iteration.java

 package org.gitlab4j.api.models;
 
-import java.util.Date;
-
-import org.gitlab4j.api.utils.JacksonJson;
-
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonValue;
+import org.gitlab4j.api.utils.JacksonJson;
+
+import java.io.Serializable;
+import java.util.Date;
+
+public class Iteration implements Serializable {
+    private static final long serialVersionUID = 1L;
 
-public class Iteration {
     public enum IterationState {
         UPCOMMING(1), CURRENT(2), CLOSED(3);
 

src/main/java/org/gitlab4j/api/models/IterationFilter.java

 package org.gitlab4j.api.models;
 
+import java.io.Serializable;
 import java.util.Date;
 
 import org.gitlab4j.api.Constants;
@@ -11,7 +12,8 @@ import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonValue;
 
-public class IterationFilter {
+public class IterationFilter implements Serializable {
+    private static final long serialVersionUID = 1L;
 
     public enum IterationFilterState {
         OPENED, UPCOMING, CURRENT, CLOSED, ALL;

src/main/java/org/gitlab4j/api/models/Job.java

 package org.gitlab4j.api.models;
 
+import org.gitlab4j.api.utils.JacksonJson;
+
+import java.io.Serializable;
 import java.util.Date;
 import java.util.List;
 
-import org.gitlab4j.api.utils.JacksonJson;
-
-public class Job {
+public class Job implements Serializable {
+    private static final long serialVersionUID = 1L;
 
     private Long id;
     private Commit commit;

src/main/java/org/gitlab4j/api/models/JobAttribute.java

@@ -2,9 +2,12 @@ package org.gitlab4j.api.models;
 
 import org.gitlab4j.api.utils.JacksonJson;
 
-public class JobAttribute {
+import java.io.Serializable;
 
-  private String key;
+public class JobAttribute implements Serializable {
+    private static final long serialVersionUID = 1L;
+
+    private String key;
   private String value;
 
   public JobAttribute(String key, String value) {

src/main/java/org/gitlab4j/api/models/JobAttributes.java

 package org.gitlab4j.api.models;
 
 import com.fasterxml.jackson.annotation.JsonProperty;
-import java.util.List;
 import org.gitlab4j.api.utils.JacksonJson;
 
-public class JobAttributes {
+import java.io.Serializable;
+import java.util.List;
+
+public class JobAttributes implements Serializable {
+    private static final long serialVersionUID = 1L;
 
-  @JsonProperty("job_variables_attributes")
+    @JsonProperty("job_variables_attributes")
   private List<JobAttribute> jobAttributes;
 
   public JobAttributes(List<JobAttribute> jobAttributes) {

src/main/java/org/gitlab4j/api/models/Key.java

 
 package org.gitlab4j.api.models;
 
-import java.util.Date;
-
 import org.gitlab4j.api.utils.JacksonJson;
 
-public class Key {
+import java.io.Serializable;
+import java.util.Date;
+
+public class Key implements Serializable {
+    private static final long serialVersionUID = 1L;
 
     private Date createdAt;
     private Long id;

src/main/java/org/gitlab4j/api/models/Label.java

 package org.gitlab4j.api.models;
 
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import org.gitlab4j.api.GitLabApiForm;
 import org.gitlab4j.api.utils.JacksonJson;
 
-import com.fasterxml.jackson.annotation.JsonIgnore;
+import java.io.Serializable;
 
-public class Label {
+public class Label implements Serializable {
+    private static final long serialVersionUID = 1L;
 
     private Long id;
     private String name;

src/main/java/org/gitlab4j/api/models/LabelEvent.java

 package org.gitlab4j.api.models;
 
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import org.gitlab4j.api.utils.JacksonJson;
 import org.gitlab4j.api.utils.JacksonJsonEnumHelper;
 
-import com.fasterxml.jackson.annotation.JsonCreator;
-import com.fasterxml.jackson.annotation.JsonValue;
+import java.io.Serializable;
 
-public class LabelEvent {
+public class LabelEvent implements Serializable {
+    private static final long serialVersionUID = 1L;
 
     /** Enum to use for specifying the label event resource type. */
     public enum ResourceType {

src/main/java/org/gitlab4j/api/models/LdapGroupLink.java

@@ -3,7 +3,10 @@ package org.gitlab4j.api.models;
 
 import org.gitlab4j.api.utils.JacksonJson;
 
-public class LdapGroupLink {
+import java.io.Serializable;
+
+public class LdapGroupLink implements Serializable {
+    private static final long serialVersionUID = 1L;
 
     private String cn;
 

src/main/java/org/gitlab4j/api/models/License.java

 package org.gitlab4j.api.models;
 
+import org.gitlab4j.api.utils.JacksonJson;
+
+import java.io.Serializable;
 import java.util.Date;
 import java.util.Map;
 
-import org.gitlab4j.api.utils.JacksonJson;
-
-public class License {
+public class License implements Serializable {
+    private static final long serialVersionUID = 1L;
 
     private Long id;
     private String plan;

src/main/java/org/gitlab4j/api/models/LicenseTemplate.java

 package org.gitlab4j.api.models;
 
+import java.io.Serializable;
 import java.util.List;
 
 import org.gitlab4j.api.utils.JacksonJson;
 
-public class LicenseTemplate {
+public class LicenseTemplate implements Serializable {
+    private static final long serialVersionUID = 1L;
 
     private String key;
     private String name;