The Workbenches are Java software, which means there must be a Java Runtime Environment (JRE) to run them. The Workbench installers have a built-in JRE that is installed under the installation directory of the Workbench. The advantages of this include that no JRE needs to be downloaded and installed from another source and that compatibility problems due to other JREs on a system are avoided because the Workbench uses its own JRE.

The JRE used for running a Workbench does not interfere with existing JREs on the computer.