Android工作室,库项目,javadocurl设置缺失

Android studio支持将纯Java模块编写为库.在这样的库中使用平台jdk.但是,文档quickview的javadoc url(带Ctrl+ Q)是错误的.我的情况是它在ConcurrentLinkedQueue.take()的文档中声明的代码片段

Following external urls were checked:    
http://docs.oracle.com/javafx/2/api/java/util/concurrent/LinkedBlockingQueue.html#take()    
http://docs.oracle.com/javafx/2/api/java/util/concurrent/LinkedBlockingQueue.html#take
-- The documentation for this element is not found. 
Please add all the needed paths to API docs in Project Settings.

IDE从哪里获取javafx网址？如何将该URL更改为合理的默认值(我在项目设置中找不到任何内容)？