Getting Started

    JavaTM 2, Runtime Environment, v. 1.3.0_02
for Caldera® UNIX® Operating Systems

The Java 2 Runtime Environment, v. 1.3.0_02, for Caldera UNIX Operating Systems, also known as the JRE 1.3 for Caldera UNIX (package java2jre3), is the minimum standard Java platform for running Java programs. It contains the Java virtual machine, JIT compiler, Java core classes and supporting files, and Java application launcher. This package matches the Sun product configuration of the Java Runtime Environment (JRE). The JRE does not contain any of the development tools (such as appletviewer or javac) or classes that pertain only to a development environment. For such tools, use the J2SDK 1.3 for Caldera UNIX.

One particular purpose of the JRE package is so that licensed independent software vendors (ISVs) can bundle it with their Java application, if desired. That way, the application and the Java version it has been tested on can be installed together on customer machines, rather than relying on whatever Java version is currently installed on those machines.

Note that there was an earlier release of J2SE 1.3.0_02 for Caldera UNIX before this one. It was documented as a final release for Open UNIX 8 and UnixWare 7, but as only a beta release for SCO OpenServer 5. Its build version string, as shown by the java -version command, was *FCS-OU8*FCS-UW7*BETA-OSR5*:010602-10:46. This newer release is a final release for SCO OpenServer 5, and also contains fixes for Caldera-specific problems on Open UNIX 8 and UnixWare 7 discovered since the earlier release went out. This newer release has a build version string of *fixes-OU8*fixes-UW7*FCS-OSR5*:<later-date-and-time>.

System Requirements and Supported Platforms

For complete details regarding system requirements, prerequisite packages and supported platforms, see the Java 2 Standard Edition (J2SE), v. 1.3.0_02 for Caldera UNIX Release Notes that are distributed along with the java2jre3 package and installed in /usr/java2 in both HTML and text format. The Release Notes are also available for download from this download page for added convenience.

Download and Installation

The java2jre3 package is by default installed in /usr/jre2/, with that actually being a symbolic link to /opt/jre2-1.3/. Unlike the java2sdk3 and java2pls3 packages, however, it is possible for an ISV or system administrator to change where the JRE is installed. See the J2SE Release Notes for instructions on how to do this.

The JRE 1.3 product is distributed as a compressed pkgadd datastream format. To download and install the JRE:

  1. Select the java2jre3.pkg.Z file.

  2. As root, move the file to a preferred installation directory.
    mv  java2jre3.pkg.Z  /tmp1

  3. Change to the installation directory:
    cd  /tmp1

  4. Uncompress the file:
    uncompress  java2jre3.pkg.Z

  5. Install any prerequisite package(s) as described in the J2SE Release Notes.

  6. Install the JRE package using pkgadd.
    pkgadd  -d  /tmp1/java2jre3.pkg
  7. When you have completed the installation, you will probably want to remove the download package from the /tmp1 directory.

Important Notes

Documentation

Essential information about this product is contained in the Java 2 Standard Edition,v. 1.3.0_02, for Caldera UNIX Release Notes. Be sure to read these notes thoroughly before attempting to use the J2SE 1.3. We recommend that you print out these notes for later reference.

Licensing

The JRE 1.3 for Caldera UNIX is licensed under the same terms as the host Caldera operating system upon which it is installed.

Document version 130-004
31 January 2003
Copyright © 2003 Caldera International, Inc. All rights reserved.