You cannot run the Oracle Forms installer in isolation. You must download and install these components in order:
Depending on your infrastructure, you will likely download one of these major versions: Release Date Key Requirements December 2024 Requires Fusion Middleware Infrastructure 14.1.2.0.0 Oracle Forms 12.2.1.19.0 (12c) February 2023 Requires Fusion Middleware Infrastructure 12.2.1.4.0 Oracle Forms 12.2.1.4.0 September 2019 Support ended Sept 2024; upgrade is recommended 3. Mandatory Prerequisite Software
: Oracle Forms 12.2.1.19 requires JDK 1.8.0_341+ , while the newer 14c version often utilizes JDK 21.