org.xml.sax.SAXParseException: An invalid XML character (Uni

我想用replaceAll("[rn]",",")把空白方框乱码替换掉，匹配不到这个字符，怎么匹配到这个字符？

java.util.regex.Pattern INVALID_XML_CHARS = Pattern.compile("[^u0009u000Au000Du0020-uD7FFuE000-uFFFDuD800uDC00-uDBFFuDFFF]");

x_contact_method = INVALID_XML_CHARS.matcher(x_contact_method).replaceAll(" ");