JIRA REST客户端：issue.getattachments（）返回null

我正在尝试获取JIRA问题的附件。但是，getAttachments（）方法返回null。JIRA版本是v6.1.4

下面是代码

final JiraRestClientFactory factory = new AsynchronousJiraRestClientFactory();
final URI jiraServerUri = new URI("http://XXX-jira.YYY.com");
final JiraRestClient restClient = factory.createWithBasicHttpAuthentication(jiraServerUri, "XXXX", "YYYY");
//final NullProgressMonitor pm = new NullProgressMonitor();
final Issue issue = restClient.getIssueClient().getIssue("XXX-35238").claim();

System.out.println(issue);
System.out.println(issue.getAttachments());

下面是maven依赖项

<dependency>
    <groupId>com.atlassian.jira</groupId>
    <artifactId>jira-rest-java-client</artifactId>
    <version>2.0.0-m2</version>
</dependency>
    <dependency>
    <groupId>com.atlassian.jira</groupId>
    <artifactId>jira-rest-java-client-api</artifactId>
    <version>2.0.0-m25</version>
</dependency>
<dependency>
    <groupId>com.atlassian.jira</groupId>
    <artifactId>jira-rest-java-client-plugin</artifactId>
    <version>2.0.0-m25</version>
</dependency>
<dependency>
    <groupId>com.atlassian.jira</groupId>
    <artifactId>jira-rest-java-client-core</artifactId>
    <version>2.0.0-m25</version>
</dependency>

com.atlassian.jira
jira rest java客户端
2.0.0-m2
com.atlassian.jira
jira rest java客户端api
2.0.0-m25
com.atlassian.jira
jira rest java客户端插件
2.0.0-m25
com.atlassian.jira
jira rest java客户机核心
2.0.0-m25

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非常感谢您的帮助。

必须在“默认屏幕”中提供“附件”字段。否则，附件将不包括在响应中（尽管在浏览器中查看问题时附件可见…

谢谢。我绕圈子跑了好几个小时才找到答案。