It is primarily available through the Oracle Java Archive for developers needing to debug or maintain legacy systems.
The J2SDK provided a development environment for building applications and applets using the Java programming language. It included: Compilers and debuggers.
i586 indicates compatibility with 32-bit Intel and 100% compatible processors, such as Pentium 166MHz or faster.
Necessary to run Java applications on the host machine.
Downloading from the official Oracle archive generally requires a free Oracle account.