Otherwise anything of ARM Cortex M class does have Java compilers available.
Garmin devices use Monkey, which is their own Java like language.
Ricoh and Xerox copiers use Java on OS stack for third party integration.
Likewise Cisco conference call systems have their own Java flavour.
Blu Ray players, Gemalto intelligent electricity meters, and plenty more of other examples are available.
"Monkey C" (name apparently chosen only for the pun) didn't strike me as especially Java-like when I used it, and given the memory constraints placing such a low limit on the practical max size of Garmin watch applications, that it was OO at all seemed more a hindrance than an aid. I kept wishing it was just C, and I'm not even that good at C.
Less overhead will allow a cheaper device.
Its worth noting that the java support on Cortex-Ms (Jazelle) is deprecated. If you're using a cortex-m class device, chance are you don't want to be running java on it.
Note that I'm talking in general terms, there are always exceptions to the rule (such as for the rare sandboxed application).
There is this little feature of all commercial Java toolchains for embedded development called AOT compilation to native code.