void (JTree tree, Object value, boolean selected, boolean expanded, boolean leaf, int row, boolean hasFocus) { final ErrorTreeElement element = getElement(value); if(element instanceof GroupingElement && ((GroupingElement)element).isRenderWithBoldFont()) { setFont(getFont().deriveFont(Font.BOLD)); } String prefix = calcPrefix(element); if (element != null) { String[] text = element.getText(); if (text == null) { text = ArrayUtilRt.EMPTY_STRING_ARRAY; } if(text.length > 0 && text[0] == null) { text[0] = ""; } setText(text, prefix); setIcon(element.getIcon()); } }