Cleartext password on command line when using "orapki secretstore" utility of 23ai

I'm using the orapki tool to store the credentials of a database user, Oracle database 23ai free.
The "orapki secretstore help" reads:
"create_credential [-wallet [wallet]] [-pwd [wallet_password]] [-connect_string [connect_string]] [-username[username]] [-password[password]]"
When not providing a password, I w expect being prompted for the password. Instead issuing:
orapki secretstore create_credential -wallet walletDir -connect_string <myconnect> -username <myUser>
I'm not asked for a password and no credential is created, repond from the command is:
Enter wallet password:
null
Also "orapki secretstore list_credentials -wallet walletDir" doesn't show a credential.
(1) Do I made a mistake using orapki?