JDK Installation, Compressed Archive download file size is larger than its installer file? [closed]

I was installing JDK 21 for Windows and noticed three options: a compressed archive, an MSI installer, and a regular installer. Despite the ‘compressed’ label, the compressed archive turned out to be the largest in size. Is there a specific reason for this?

  • 3

    I think the mistake is assuming that the other installers don’t use compression.

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  • 2

    The compressed archive is probably a standard ZIP file using the deflate compressor whereas the installers might use LZMA (or another compression algorithm) which results in greater compression ratio (help.2brightsparks.com/support/solutions/articles/…)

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  • Without knowing anything about the archive, it’s difficult to say. For instance, for all we know, the archive could contain installers for more than one OS

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