Oracle understands that enterprises still need legacy versions. They maintain an official archive for historical JRE/JDK versions. Here is the step-by-step process to get your free download:
Using JRE 1.4.0 on a modern, internet-connected computer is highly risky. Key vulnerabilities identified in this version include: Java Runtime Environment 1.4.0 Free Free Download
Originally codenamed "Merlin," JRE 1.4.0 was a landmark release for Sun Microsystems in February 2002. It transformed Java from a slow, novelty language into a serious competitor for enterprise applications. Today, downloading this specific version is less about upgrading your modern PC and more about reviving a specific piece of the past. This article will provide you with everything you
This article will provide you with everything you need to know: where to find a legitimate, safe, and completely free copy of JRE 1.4.0, how to install it on modern and legacy operating systems, and critical security warnings you must heed before proceeding. but not straightforward.
: You must sign in with a free Oracle account to access these files.
Here is where things get tricky. JRE 1.4.0 is 32-bit software released for Windows 2000/XP. Installing it on Windows 10 or 11 is possible, but not straightforward.