A DESCRIPTION OF THE PROBLEM :
providerpath option should be added to all keytool commands which specify provider information's.
For example in gencert command it contains only the following options (related to provider information's) : providername, providerclass and providerarg, so the missing option providerpath should be also added.

This missing option should be added to all keytool commands that specify provider information's.

NB: in all keytool commands, the keywords : providerName, providerClass and providerArg should be replaced by providername, providerclass and providerarg.


URL OF FAULTY DOCUMENTATION :
https://docs.oracle.com/javase/8/docs/technotes/tools/unix/keytool.html