how to use JRJC in spring boot rest controller

[Sohail Anwar]

Code I have tried is as below

@GetMapping("/projects")
List<Project> getAllProjects() throws Exception{
    System.out.println("In get project");
    List<Project> projectModelList = null;
    JiraRestClient jiraRestClient = AuthUtility.getConnection();

    ArrayList<BasicProject> projectList = Lists.newArrayList(jiraRestClient.getProjectClient().getAllProjects().claim());
     Project project = null;
    for (BasicProject basicProject:projectList){
        System.out.println("project key "+basicProject.getKey());

        project.setpKey(basicProject.getKey());
        projectModelList.add(project);
    }
    return projectModelList;
}

it throws error as 

"message": "Handler dispatch failed; nested exception is java.lang.NoClassDefFoundError: com/atlassian/httpclient/api/factory/HttpClientOptions"