/**
* Helper method for {@link #parse(StaplerRequest, Annotation, Class, String)} to convert to the
* right type from String.
*/
protected final Object convert(Class targetType, String value) {
Converter converter = Stapler.lookupConverter(targetType);
if (converter == null) throw new IllegalArgumentException("Unable to convert to " + targetType);
return converter.convert(targetType, value);
}
