JTable update not showing

I am desperate to convince my to JTableupdate when I modify its data. The data is stored in the global singlet TreeSet, with which I work. Whenever data TreeSetchanges, an TableModelevent is fired to update . For testing purposes, I replaced this with simple Timershooting.

Each time the event is fired, an element TreeSetis deleted from to simulate data changes. The event fires, but TableClassreceives it and processes it as expected, but when it comes to updating, nothing happens. I tried to create a new TableModelone every time an event occurs and set it to the global table. Changes to singleton TreeSetare made, but nothing happens with JTable.

public class TreeTableObj implements ActionListener{
public JTable table ;

public TreeTableObj(){
    MyTableModel myModel = new MyTableModel(getValuesOfTreeSet(), getTreeSetRows());

    table = new JTable( myModel){ //some rendering };

    table.setAutoCreateRowSorter(true);
    }

    class MyTableModel extends AbstractTableModel {
        private String[] columnNames;
        private Object[][] data ;


        public MyTableModel(Object[][] data, String[] columnNames){
            this.data = data;
            this.columnNames = columnNames;
            System.out.println("Model created");
        }

        public int getColumnCount() {
            return columnNames.length;
        }

        public int getRowCount() {
            return data.length;
        }

        public String getColumnName(int col) {
            return columnNames[col];
        }

        public Object getValueAt(int row, int col) {
            return data[row][col];
        }

        public void setData(Object[][] data){
            this.data = data;
            fireTableDataChanged();
        }


        public Class getColumnClass(int c) {
            return getValueAt(0, c).getClass();
        }


        public boolean isCellEditable(int row, int col) {
            if (col < 2) {
                return false;
            } else {
                return true;
            }
        }


        public void setValueAt(Object value, int row, int col) {
            if (true) {
                System.out.println("Setting value at " + row + "," + col
                                   + " to " + value
                                   + " (an instance of "
                                   + value.getClass() + ")");
            }

            data[row][col] = value;
            fireTableCellUpdated(row, col);

            if (true) {
                System.out.println("New value of data:");
                printDebugData();
            }
        }

        private void printDebugData() {
            int numRows = getRowCount();
            int numCols = getColumnCount();

            for (int i=0; i < numRows; i++) {
                System.out.print("    row " + i + ":");
                for (int j=0; j < numCols; j++) {
                    System.out.print("  " + data[i][j]);
                }
                System.out.println();
            }
            System.out.println("--------------------------");
        }
    }

    public void refreshTableModel(){
        FlightsTreeSet.getInstance().remove(FlightsTreeSet.getInstance().first());
        table.setModel(new MyTableModel(getValuesOfTreeSet(), getTreeSetRows()));
        }

    public void actionPerformed(ActionEvent arg0) {
        refreshTableModel();    
    }
}

!

[EDIT1]

Core: , , JFrame, , . , .