ContractUpgradeTransactionBuilder

constructor(inputs: List<StateRef>, notary: Party, legacyContractAttachmentId: SecureHash, upgradedContractClassName: ContractClassName, upgradedContractAttachmentId: SecureHash, privacySalt: PrivacySalt = PrivacySalt(), networkParametersHash: SecureHash, digestService: DigestService = DigestService.sha2_256)