Bug 20644 [hovering] Javadoc hover cannot handle link tag
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/javadoc/JavaDoc2HTMLTextReader.java
private int getTag(StringBuffer buffer) throws IOException {
		int c= nextChar();
		while (c != -1 && Character.isLetter((char) c)) {
			buffer.append((char) c);
			c= nextChar();
		}
		return c;
	}
	
	private int getContent(StringBuffer buffer, char stopChar) throws IOException {
		int c= nextChar();
		while (c != -1 && c != stopChar) {
			buffer.append((char) c);
			c= nextChar();
		}
		return c;
	}
	
	private int getContentUntilNextTag(StringBuffer buffer) throws IOException {
		int c= nextChar();
		boolean tagStarterRead= (c == '@');  
		while (c != -1) {
			buffer.append((char) c);
			int endingTagIndex= tagStarterRead ? findEndingTag(buffer) : -1;
			if (endingTagIndex != -1) {
				unread(TAGS[endingTagIndex], buffer);
				return nextChar();
			}	
			c= nextChar();