You can't make an
OP_RETURN-based output out to any specific address, since the
OP_RETURN opcode marks an output as invalid (thus provably unspendable). In fact, an
OP_RETURN-based output will not even enter the
A zero amount is okay (and even encouraged) for
OP_RETURN is paid for via the fee; putting a non-zero amount in
OP_RETURN would just destroy bitcoins, so the miners do not profit from mining it.
However, you can create a transaction that has multiple output scripts: One can be a standard
P2PKH of the form
OP_DUP OP_HASH160 <pubKeyHash> OP_EQUALVERIFY OP_CHECKSIG while the other can be an output with
OP_RETURN. Just call
addOutput twice, once with an address and the amount desired, and a second time with parameters for an OP_RETURN script (and a non-zero output value, I would presume).