My Vyper contract caused a Ganache error, because the vyper compiler formats its bytecode output with a 0x prefix and a \n suffix.
web3j-cli takes that string as is and puts it into a contract Java wrapper class. When ganache-cli receives that binary string, it throws a "stack underflow" error.
After stripping off the 0x and \n chars, the contract deploy successfully.
As of Feb. 2022, Web3j does not explicitly support contracts compiled from Vyper.
When solcjs outputs a contract's binary, it does not add 0x or \n.