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by eggsnbacon1 2229 days ago
I have had IntelliJ open with multiple million+ line projects with thousands of source files and it hovers around 3GB. Its gotta be his settings. Java will use as much ram as you tell it to, it uses the extra ram to collect garbage less often.

Its super common to misconfigure Java to use all of your ram. You could have a terabyte and tell it to use everything and it will