[lmm]

No language is immune to slow or memory-hungry code. The JVM is probably the easiest runtime to monitor/instrument/profile (and it's not like having no runtime makes that any easier, quite the opposite), and has probably the most tuneable GC going.

I guess enabling your users to do that might be work for a sysadmin, but that's more a reflection of those users having higher expectations for Java than for other runtimes - providing your users with the same capability in other stacks is never easier than Java, and often significantly harder.