What (with version) are you attempting to install Java 1.4.0 on?
Important: OpenJDK did not exist at the time of Java 1.4.0. OpenJDK started with Java 7. You get an OpenJDK 1.4.0. You need Sun/Oracle binaries. java 1.4 0 download
Post: Hi — I need the Java SE 1.4 (specifically 1.4.2) runtime/SDK to run an old application/legacy build on Windows XP (or specify your OS). I understand this is outdated and unsupported; I only need it for an isolated legacy environment. What (with version) are you attempting to install Java 1
Sites like OldVersion.com or the Internet Archive host mirrors, but these are not officially verified. 🛡️ Important Security Warning You get an OpenJDK 1
The release of Java 1.4.0, codenamed , marked one of the most significant leaps in the platform's history. Released by Sun Microsystems in February 2002, it was the first Java version developed under the Java Community Process (JCP) , signaling a shift toward a more collaborative ecosystem. Key Innovations
For modern production environments, use Java 17 or Java 21 (LTS) . 📖 Evolution of Java: A Look Back at Version 1.4.0
Java 1.4.0, also known as Java Platform, Standard Edition (J2SE) 1.4.0, was released in March 2002. Although it's an older version of Java, it's still used in some legacy systems and applications. In this guide, we'll walk you through the process of downloading and installing Java 1.4.0.