I2P support forum

https://defcon.org/
Don't know of any Java I2P team members that are going.
Anonimal from Kovri will be speaking at the BCOS Privacy Village, and there will be other Monero team members there.
As noted at: https://forum.getmonero.org/9/work-in-p ... ing-thread

Anybody who does go to DEFCON, please check out the Crypto/Privacy Village, the talks there, and the table setup. Please report back with a recommendation on whether we should participate next year and get a table, submit a talk, or both.

https://cryptovillage.org/