Sun Java System Application Server Platform Edition 9 Release Notes

Switching to Another Supported Java Version

Sun Java System Application Server 9 requires J2SE 5.0 or greater as the underlying JVM. If you want to switch from one Java version to another, perform the following general steps. (Windows and Unix)

ProcedureTo switch to another supported Java version

  1. Download the Java SDK (not the JRE) and install it on your system, if you have not already done so.

    The Java SDK can be downloaded from

  2. Completely stop the Application Server.

    You can use the following command line:

    as-install/bin/asadmin stop-domain

    Alternatively, you can use the Administration Console GUI:

    1. Click the Application Server node.

    2. Click Stop Instance.

  3. Edit the install_dir/config/asenv.conf file (asenv.bat on Windows), changing the value for AS_JAVA to point to the new J2SE home directory.

  4. Edit the as-install/samples/ file, changing the line beginning com.sun.aas.javaRoot... to reference the new J2SE home directory.

  5. Restart the Application Server.

    as-install/bin/asadmin start-domain