Sun Java Desktop System（JDS）是一个用于升阳的Solaris及其原来Linux（Linux的支持于2006年5月30日中断） 的桌面环境。

JDS目的为提供一般电脑用户一个熟悉（意即其外观与Microsoft Windows相似）以及拥有一整套如办公软件套装、网页浏览器、电子邮件、日程表与即时消息等办公室生产力软件的系统。

其名称反映出升阳有意将其作为一个推动公司用户部署为Java平台编写的软件的场所；JDS建基于GNOME之上，主要采用自由软件。

Java Desktop System, briefly known as OpenSolaris Desktop, is a desktop environment developed first by Sun Microsystems and then by Oracle Corporation after the 2010 Oracle acquisition of Sun. Java Desktop System is available for Solaris and was once available for Linux. The Linux version was discontinued after Solaris was released as open source software in 2005. Java Desktop System aims to provide a system familiar to the average computer user with a full suite of office productivity software such as an office suite, a web browser, email, calendaring, and instant messaging.