bitcoinj/bitcoinj — pull request #45 by haraldh (2014-04-11 10:35:20+00:00)
Title: signInputs: Throw exception on missing private Key

signInputs() throws a ECKey.MissingPrivateKeyException, if a dummy
signature was used, so that callers now can react on it.
Otherwise the caller cannot know, that the Transaction might need to be
signed by somebody else.