There is the option to add a dummy column to the table header with no data underneath, for decorative purposes.

You can control the visibility of the dummy column with:

public void setShowDummyColumn(boolean showDummyColumn);

So,

AdvancedJTable table = new AdvancedJTable();

table.setShowDummyColumn(true);

This option is available ONLY if the table is enclosed by an AdvancedJScrollPane:

AdvancedJTable table = new AdvancedJTable();

table.setShowDummyColumn(true);

AdvancedJScrollPane scroller = new AdvancedJScrollPane();

scroller.setViewportView(table);

Finally, you can determine if the dummy column is present by calling:

public boolean getShowDummyColumn();

OR

public boolean isDummyColumn(int column);