[java] Body background color in HTMLDocument

HTMLEditorKit kit = new HTMLEditorKit();document = (HTMLDocument) kit.createDefaultDocument();Element html = document.getRootElements()[0];HTMLDocument.BlockElement body = (HTMLDocument.BlockElement) html.getElement(0);

public class MutableHTMLDocument extends HTMLDocument {	public MutableHTMLDocument(StyleSheet styles) {		super(styles);	}	public void addAttributes(Element e, AttributeSet attributes) {		if (e == null || attributes == null)			return;		try {			writeLock();			MutableAttributeSet mattr = (MutableAttributeSet) e					.getAttributes();			mattr.addAttributes(attributes);			fireChangedUpdate(new DefaultDocumentEvent(0, getLength(),					DocumentEvent.EventType.CHANGE));		} finally {			writeUnlock();		}	}}

public class CustomHTMLEditorKit extends HTMLEditorKit {	public Document createDefaultDocument() {		StyleSheet styles = getStyleSheet();		StyleSheet ss = new StyleSheet();		ss.addStyleSheet(styles);		MutableHTMLDocument doc = new MutableHTMLDocument(ss);		doc.setParser(getParser());		doc.setAsynchronousLoadPriority(4);		doc.setTokenThreshold(100);		return doc;	}}

Color backgroundColor = new Color(229, 252, 226);			CustomHTMLEditorKit kit = new CustomHTMLEditorKit();document = (MutableHTMLDocument) kit.createDefaultDocument();Element html = document.getRootElements()[0];Element body = html.getElement(0);// Set background colorMutableAttributeSet attr = new SimpleAttributeSet();attr.addAttribute(HTML.Attribute.BGCOLOR, colorToHex(backgroundColor));document.addAttributes(body, attr);