# Guide to OpenIG
Chapter 3. Getting Started

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## 3.1. Before You Begin

For the remainder of this chapter, `$HOME` is the location of the home directory of the user running the web application container, where Jetty, OpenIG and the Samples are unpacked.

Make sure you have the correct Java environment installed. If necessary, download and install Sun Java SE JDK 6 Update 21 or later. At this time these are the only versions of any JDK supported with OpenIG.