Space separated string of extra arguments, for instance -Xfluent-api -episode somefile; These
will be passed on to XJC as "-Xfluent-api" "-episode" "somefile" options.
Updates all schemaLocation attributes within the generated schema files to match the 'file' properties within the
Schemas read from the plugin configuration.
Specifies the runtime environment in which the generated code is supposed to run, if older than the
JAXB version used by the plugin (for example "2.0").