feat: Missing properties in Issue Model Class #1145

Author: LeJeanbono

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

@@ -74,6 +74,9 @@ public String toString() {
     private Integer weight;
     private Boolean discussionLocked;
     private TimeStats timeStats;
+    private String severity;
+    private String issueType;
+    private IssueEpic epic;
 
     private Integer upvotes;
     private Integer downvotes;
@@ -344,6 +347,30 @@ public void setTaskCompletionStatus(TaskCompletionStatus taskCompletionStatus) {
         this.taskCompletionStatus = taskCompletionStatus;
     }
 
+    public String getIssueType() {
+        return issueType;
+    }
+
+    public void setIssueType(String issueType) {
+        this.issueType = issueType;
+    }
+
+    public String getSeverity() {
+        return severity;
+    }
+
+    public void setSeverity(String severity) {
+        this.severity = severity;
+    }
+
+    public IssueEpic getEpic() {
+        return epic;
+    }
+
+    public void setEpic(IssueEpic epic) {
+        this.epic = epic;
+    }
+
     @Override
     public String toString() {
         return (JacksonJson.toJsonString(this));

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

@@ -0,0 +1,11 @@
+package org.gitlab4j.api.models;
+
+import org.gitlab4j.api.utils.JacksonJson;
+
+public class IssueEpic extends AbstractMinimalEpic<IssueEpic> {
+    private static final long serialVersionUID = 1L;
+
+    public String toString() {
+        return (JacksonJson.toJsonString(this));
+    }
+}