Component (JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) { setForeground(null); setToolTipText(null); if (column == 0) { if (table.getModel().getValueAt(row, 1) == null) { setForeground(PlatformColors.BLUE); setToolTipText(XPathBundle.message("tooltip.no.value.set.for.parameter.0", value)); } } else if (value == null) { value = "<none>"; } return super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column); }