To download Java 1.4.0 (also known as J2SE 1.4.0), you must access the Oracle Java Archive
| If you need... | Consider this alternative... | |----------------|-----------------------------| | Run a legacy app | Test it on – many 1.4 apps run unmodified. | | Compile old source code | Use RetroTranslator or Java 1.4 compatibility flag in modern JDK ( -source 1.4 -target 1.4 ). | | Debug a production issue | Extract the JAR/WAR and run on OpenJDK 8 with legacy flags ( -XX:+IgnoreUnrecognizedVMOptions ). | | Use an old library | Find a modern fork or recompile the library from source. | java 1.4 0 download
: If you're working in a containerized environment, you can create or find a Docker image with Java 1.4.0 for your needs. To download Java 1
Various software preservation sites and GitHub | | Compile old source code | Use RetroTranslator or Java 1