shared_with_groups is an object

src/main/java/cd/go/authorization/gitlab/client/models/GitLabProject.java

@@ -128,7 +128,7 @@ public class GitLabProject {
     private boolean publicJobs;
     @SerializedName("shared_with_groups")
     @Expose
-    private List<String> sharedWithGroups = null;
+    private List<SharedWithGroup> sharedWithGroups = null;
     @SerializedName("only_allow_merge_if_pipeline_succeeds")
     @Expose
     private boolean onlyAllowMergeIfPipelineSucceeds;
@@ -292,7 +292,7 @@ public boolean isPublicJobs() {
         return publicJobs;
     }
 
-    public List<String> getSharedWithGroups() {
+    public List<SharedWithGroup> getSharedWithGroups() {
         return sharedWithGroups;
     }
 

src/main/java/cd/go/authorization/gitlab/client/models/SharedWithGroup.java

@@ -0,0 +1,46 @@
+
+package cd.go.authorization.gitlab.client.models;
+
+import com.google.gson.annotations.Expose;
+import com.google.gson.annotations.SerializedName;
+
+public class SharedWithGroup {
+    @Expose
+    @SerializedName("group_id")
+    private long groupId;
+    @Expose
+    @SerializedName("group_name")
+    private String groupName;
+    @Expose
+    @SerializedName("group_full_path")
+    private String groupFullPath;
+    @Expose
+    @SerializedName("access_level")
+    private AccessLevel accessLevel;
+    @Expose
+    @SerializedName("expires_at")
+    private String expiresAt;
+
+    SharedWithGroup() {
+    }
+
+    public long getGroupId() {
+        return groupId;
+    }
+
+    public String getGroupName() {
+        return groupName;
+    }
+
+    public String getGroupFullPath() {
+        return groupFullPath;
+    }
+
+    public AccessLevel getAccessLevel() {
+        return accessLevel;
+    }
+
+    public String getExpiresAt() {
+        return expiresAt;
+    }
+}