You're right, it was Slowlaris that killed Sun, and Java was meant to be a "Microsoft Killer", not a programming language.
Sun was a dead man walking long before Java. And Scott McNealy's me-too obsession with Microsoft was extremely unhealthy, leading to him actually naming the division "SunSoft". Never define and even NAME yourself in terms of your enemy. Scott McNealy knew neither himself nor his enemy.
“If you know the enemy and you know yourself, you need not fear the result of a hundred battles. If you know yourself but not the enemy, for every victory gained you will also suffer a defeat. If you know neither the enemy nor yourself, you will succumb in every battle” - Sun Tzu’s “The Art Of War”
Sun could never measure up to Microsoft, and McNealy was totally obsessed with fighting them, to the point that Java was not actually a programming language for solving developer's problems per se, but primarily a weapon in his personal vendetta against Microsoft, and Java developers were considered expendable mercenaries in that war, above all else. Everything they did with Java was measured by how much it would harm Microsoft, not help developers.
Scott McNealy was pathetically and pathologically obsessed with being and beating Bill Gates and Windows, yet so unfit for the task, just as he has been more recently obsessed with licking Trump's boots, raising money for him and his failed coup attempt, and towing his anti-mask anti-vax anti-science line of bullshit.
https://www.theregister.com/2019/09/17/mcnealy_trump_fundrai...
Michael Tiemann on "The Worst Job in the World":
https://en.wikipedia.org/wiki/Michael_Tiemann
>Michael Tiemann is vice president of open source affairs at Red Hat, Inc., and former President of the Open Source Initiative. [...] He co-founded Cygnus Solutions in 1989. [...] Opensource.com profiled him in 2014, calling him one of "open source's great explainers."
http://www.art.net/~hopkins/Don/unix-haters/slowlaris/worst-...
>Subject: The Worst Job in the World
>From: Michael Tiemann
>I have a friend who has to have the worst job in the world: he is a Unix system administrator. But it's worse than that, as I will soon tell. [...]