At the moment, the answer is no. There is a way but it is not so easy: OpenJDK with MicroEmulator + a skin to ease use, then you have to download and start .jad or .jar files in MicroEmu.
Working, slowly because Java bytecode is interpreted and JVM+MicroEmu requires too much memory.

That is why I'm working on the port of Symbian JRT http://developer.symbian.org/wiki/JRT as a proof of concept. For a real end-user deployment, I guess we will face many licensing and royalties issues...