Sun Java System Application Server Platform Edition 8.2 Release Notes

Switching to Another Supported J2SE Version

Sun Java System Application Server 8.2 supports both J2SE 1.4.2 and J2SE 5.0 as the underlying JVM. If you want to switch from one J2SE version to another, perform the following general steps. (Windows and Unix)

ProcedureTo switch to another supported J2SE version

  1. Download the J2SE SDK (not the JRE) and install it on your system, if you have not already done so.

    The J2SE 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
Next Steps

If you are upgrading from a JDK version earlier than the bundled version (JDK 1.4.2_06), then you cannot upgrade to J2SE 5.0 or later using just the steps above. Specifically, in addition to the above steps, you must delete any existing domains and recreate them.