Client side validation always results in "Enter 2 or more characters, up to a maximum of 0."
No valid data can be entered at all.
Server side validation works in principal, but spits out an incorrect message when the validation (correctly) fails: "Enter 0 or more characters, not fewer."
See https://issues.apache.org/jira/browse/TRINIDAD-1130 for test.war that you can simply drop into Tomcat 6.
Much of my code omits the "maximum" attribute, because I have a maximum length set on my input components (so that joe user just cannot enter more characters anyway) and have wrapped the form in a seam validation (s:validateAll) that validates on the server side against constraints set with hibernate validation annotations on the entity objects (so that a hacker can do no harm).