Bug 20644 [hovering] Javadoc hover cannot handle link tag
org.eclipse.jdt.text.tests/src/org/eclipse/jdt/text/tests/JavaDoc2HTMLTextReaderTester.java
MockBuffer(String string){
		fStringBuffer= new StringBuffer(string);
	}
	
	public void addBufferChangedListener(IBufferChangedListener listener) {
	}
	public void append(char[] text) {
		fStringBuffer.append(text);
	}
	public void append(String text) {
		fStringBuffer.append(text);
	}
	public void close() {
	}
	public char getChar(int position) {
		return fStringBuffer.charAt(position);
	}
	public char[] getCharacters() {
		return fStringBuffer.toString().toCharArray();
	}
	public String getContents() {
		return fStringBuffer.toString();
	}
	public int getLength() {
		return fStringBuffer.length();
	}
	public IOpenable getOwner() {
		return null;
	}
	public String getText(int offset, int length) {