What is the suggested way for activating an xjc plugin when generating bean artifacts though wsconsume?

Specifically I would like to use the commons-lang-plugin which generates equals(), hashcode() and toString() methods.

Looking at https://jaxb2-commons.dev.java.net/commons-lang-plugin/ I understand that I need to :

i) include a jar in the classpath
ii) pass the argument 'Xcommons-lang' to the xjc task.

How can I achieve the latter using wsconsume?

Regards,
Magnus