Table of Contents
Overview
Since February 2020, OpenWebStart has become essential for launching Mercedes-Benz Aftersales applications. This open-source software must be installed on the workstations of all application users to ensure continued access.
For detailed setup instructions, please refer to the installation instructions which will guide you through the OpenWebStart installation process on your workstation.
To understand how to use OpenWebStart effectively, consult the comprehensive User guide .
Administrators and IT professionals seeking to integrate OpenWebStart within centrally managed workstations or terminal servers can find valuable information in the Administration Guide.
Why is OpenWebStart Necessary?
Many applications provided by Mercedes-Benz AG are rich client applications, developed using Java™ programming language. These applications operate on the user’s local computer and require a Java Runtime Environment (JRE) to function correctly. Previously, Oracle™ provided the necessary runtime environment for these applications.
These rich client applications were traditionally launched directly from web browsers using a technology called “Java Web Start” (JWS), a component of the Oracle Java Runtime Environment (JRE). However, in 2017, Oracle announced the discontinuation of support for Java Web Start. With the release of Java 11, JWS was removed from the JRE installation packages. This change meant that systems running the latest Oracle 11 JRE could no longer launch applications via JWS.
Alt: OpenWebStart download page showcasing the latest version and download options for different operating systems.
Adding to this, Oracle ended its free support for Java 8 in 2019. This meant companies would no longer receive updates and security patches for Oracle Java 8 without a commercial license.
In response to these changes, Mercedes-Benz AG made the strategic decision to transition from Oracle Java to OpenWebStart (OWS). This new product, developed by the Swiss company Karakun AG, ensures the continued reliable, long-term, and secure delivery of Java Web Start technology, while offering a more sustainable cost framework. This transition ensures users can continue to access vital applications, potentially including diagnostic tools used in workshops, without interruption. While this guide focuses on OpenWebStart installation, users seeking information on specific tools like Xentry 2017 installation should consult dedicated documentation for those systems after ensuring OpenWebStart is properly set up.
Understanding the Implications of OpenWebStart
The implementation of OWS necessitates careful planning for application adjustments and user device modifications.
- Moving forward, only 64-bit operating systems will be officially supported.
- This critical update meant that older 32-bit workstations needed to be upgraded or replaced by the end of February 2020.
- Coinciding with this, Microsoft’s announcement of ending Windows 7 support at the start of 2020 provided further impetus for these essential upgrades. It’s important to note that using outdated operating systems without manufacturer support is generally not advisable for security and compatibility reasons, irrespective of the OpenWebStart transition.
Alt: Architecture diagram illustrating OpenWebStart components and their interaction with Java applications and the operating system.
Required Actions for Users
To guarantee uninterrupted access to applications, users need to take the following steps:
| Timeline | Action |
|---|---|
| Immediately | Upgrade 32-bit operating systems to 64-bit. Replace hardware if necessary to support 64-bit architecture. |
| By 10/2020 | OWS-Installation on user devices. Application launch via Oracle Java 8 will remain possible during this phase until OWS is installed. |
Post-October 31, 2020 Application Access
Mercedes-Benz AG ensured application compatibility with Oracle 8 Java Runtime until October 31, 2020. While access might not be immediately cut off after this date, it’s crucial to understand that there will be no further guarantees of application compatibility with Oracle JRE 8 following any subsequent system changes or updates. Therefore, migrating to OpenWebStart as per the recommended timeline was essential for continued reliable access.
Important Note for XENTRY Diagnosis Kit Users
XENTRY Diagnosis Kit systems are exempt from this transition. OpenWebStart installation is NOT required for launching WIS/ASRA on these dedicated devices. Do not attempt to install OWS on XENTRY Diagnosis Kit systems. These systems operate under a different configuration and do not rely on OpenWebStart for application launching.
Last update: Wed 26 Jul 2023 02:57:38 PM CEST
