Yeah, kava java is great. It's like a threshhold dose of E if you have the equivalent of 2 shells and 3-4 cups of coffee.
Add Kanna to that, which is also similar to E, and you've got yourself ready to party: cheaply, safely, legally, and in a healthy way. Not a ton of people know about Kanna, it's sorta up-and-coming in smartshops in the US, but I've seen it on sale in Europe for a while now. Its a South African herb, consumed by the bushmen in the deserts for thousands of years; little is presently known about it. In my experiences I'd classify it as an Empathogen, as it intensifies emotional connection with others. It also keeps you from sleeping for a loooong time, lol.
I reccomend both.
If you do purchase Kratom, post your experiences with it here, I'd be interested to know. Some of my other entheogen-using buddies have tried it and only gotten a strikingly powerful sense of depression from it, and few positive effects. I myself haven't used it.