XMLUtils { public static String unescapeXMLComment(String content) { StringBuffer str = new StringBuffer(content.length()); char[] buff = content.toCharArray(); boolean escaped = false; for (char c : buff) { if (!escaped && c == '\\') { escaped = true; continue; } str.append(c); escaped = false; } return str.toString(); } private  XMLUtils(); static String extractXML(Node node, int start, int length); static String escapeXMLComment(String content); static String unescapeXMLComment(String content); @Deprecated static String escape(Object content); @Unstable static String escape(String content); @Deprecated static String escapeAttributeValue(Object content); @Unstable static String escapeAttributeValue(String content); @Unstable static String escapeElementText(String content); @Deprecated static String escapeElementContent(Object content); @Deprecated static String unescape(Object content); static Document createDOMDocument(); static Document parse(LSInput source); static String serialize(Node node); static String serialize(Node node, boolean withXmlDeclaration); static String transform(Source xml, Source xslt); static String formatXMLContent(String content);  }
@Test void unescapeXMLComment() { assertEquals("", XMLUtils.unescapeXMLComment("\\")); assertEquals("\\", XMLUtils.unescapeXMLComment("\\\\")); assertEquals("--", XMLUtils.unescapeXMLComment("\\-\\-")); assertEquals("--", XMLUtils.unescapeXMLComment("\\-\\-\\")); }