The deployment.properties file is used for specifying keys for the Java Runtime Environment. Each option in the Java control panel is represented by property keys. These keys adjust the options in the Java control panel based on the value assigned to that key. By default no deployment.properties file exists; thus, no system-wide deployment exists. Without the deployment.properties file, setting particular options for the Java control panel is impossible.
NOTE: The 'JRE' directory in the file path may reflect the specific JRE release installed.