src/main/java/de/jformchecker/elements/AbstractInput.java
public String buildMaxLen() {
		List<Criterion> criteria = this.getCriteria();
		if (criteria != null) {
			for (Criterion criterion : criteria) {
				if (criterion instanceof MaxLength) {
					return AttributeUtils.buildSingleAttribute("maxlength", Integer.toString(((MaxLength) criterion).getMaxLength()));
				}
			}
		}
		return "";
	}
public String buildMaxLen() {
		List<Criterion> criteria = this.getCriteria();
		if (criteria != null) {
			for (Criterion criterion : criteria) {
				if (criterion instanceof MaxLength) {
					return AttributeUtils.buildSingleAttribute("maxlength", Integer.toString(((MaxLength) criterion).getMaxLength()));
				}
			}
		}
		return "";
	}
builds the maxlen attribute