Thank you for choosing Java SE Embedded 7 Update 21 Runtime Environment for your embedded system. Java SE Embedded 7u21 Runtime Environment is based on the Java Runtime Environment 7 Update 21 (JRE 7u21) and provides specific features and support for embedded systems.
This document provides details about the Java Runtime Environment (JRE™) of Java SE Embedded 7u21. The Java Runtime Environment contains the Java virtual machine, runtime class libraries, and Java application launcher that are necessary to run programs written in the Java programming language. It is not a development environment and does not contain development tools such as compilers or debuggers. For development tools, see the Java Development Kit (JDK™) Tools and Utilities documentation.
To ensure that you have the most recent update of the technical documents for Java SE Embedded, check the latest versions on the Java SE Embedded Product Documentation web site.
Be sure to read the Release Notes for Java SE Embedded 7 Update 21.
See also the JDK 7 Update Release Notes for release information on the JDK 7 platform.
The Java SE Embedded technology included in this package can be installed using the
To install Java SE Embedded on your system, download the files onto your system and uncompress the binary files with the following commands:
gunzip <name of the downloaded file>
tar xvf <name of the downloaded file>
ejre1.7.0_21 will be created in your current directory and populated with the entire JRE release. This installation directory,
<current-directory>/ejre1.7.0_21, will be hereafter referred to as
<JAVA_HOME>/bin to your
PATH environment variable setting in order to run the Java binaries.
This release of Java SE Embedded 7 Update 21 was tested on Linux for ARM, Power Architecture and x86 systems. The requirements of these systems are specified at Java SE Embedded System Requirements. For ARM, testing was done on the v5, v6 and v7 architectures. Power Architecture systems based on e600 core and e500v2 core architectures were tested. Headless mode was tested on all systems; headful mode was tested on ARM v7.
Some of the information in this document describes support or issues concerning graphics, window managers, audio, and so forth, and therefore only applies to the headful release on ARMv7.
Java support on ARM is specific to the GNOME Desktop Environment version
For Java SE Embedded product inquiries, please contact the Java SE Embedded team.