This plugin provides the capability to manipulate keys and keystores and acts as a wrapper of the keytool command.
Keytool does not have same operations available for any jdk, see here list of restrictions for older jdk:
Since version 1.3, goals will failed for unsupported operations.
In version 1.2, a lots of new goals were introduced (MKEYTOOL-19) to perform all possible task available in the keytool command.
Note also that new goals are not attached to any phase, so you will have to set explicitly the phase on which attach executions of goals.
As the new goals can set all parameters than older one, we prefer to deprecate the old one... Please use the new mojo (old one will be at next major release removed).
Instructions on how to use the Keytool Plugin can be found on the usage page.