Thanks guys.
I already tried that, but somehow GlassFish was ignoring it.
I launched a search for 443 and could not find anything in my whole file system... so I have no idea why was GlassFish still trying to use port number 443.
In anycase I just reinstalled GlassFish and it's now starting Ok.
I guess this was beyond me; I hate when I cannot pinpoint where the real problem is.
Thanks everyone.
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