: Using older versions of the JRE (Java Runtime Environment) or JDK (Java Development Kit) poses a significant security risk to your system. How to Install & Switch Versions
A proposed command structure for a hypothetical java-archive CLI tool:
Java 7 and earlier receive no public patches. Only use them in isolated, air-gapped environments.
(formerly AdoptOpenJDK) provides free, open-source, production-ready builds of Java, including old versions.
For Java 8, 9, 10, and 11, you can sometimes bypass the account wall by using Oracle’s older downloads portal:
On that page, you will find the . It includes:
: To download from the Oracle Archive, you must log in to an existing oracle.com account or create a new one.