public UserAttributeParam createUserAttributeParam() { UserAttributeParam attributeParam = new UserAttributeParam(); attributeParam.setKey(key); Set<String> valueList = Sets.newHashSet(); if (!StringUtils.isBlank(this.values)) { String[] values = this.values.split(LINE_BREAK); for (String val : values) { if (!StringUtils.isBlank(val.trim())) { valueList.add(val.trim()); } } } attributeParam.setValues(valueList); return attributeParam; }