Component (JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) { Component component = defaultRenderer.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column); if (component instanceof JComponent) { ((JComponent)component) .setToolTipText(column == 1 ? JavaBundle.message("nullable.notnull.annotations.runtime.instrumentation.tooltip") : null); } return component; }