This class provides a command line parameter and option parser, suitable
for use in command line utilities, as well as other contexts where a command
line option-style syntax is desired.
Parse a sequence of comma-separated email addresses into individual
EmailAddress objects, enforcing strict Internet RFC822
email address syntax requirements.
An PropertiesMap provides a thin Map<String,String>
wrapper around a java.util.Properties object, allowing the
Properties object to be used where a type-safe Map is
expected.