double clicking on an imageicon in jtable makes the imageIcon dissapear

I have a JTable where i fetch data from db and display. One of the columns is a blob oject type and it contains a image(if present ,else null ).
I also have a double click event handler for the JTable so that when user double clicks only on the image,a new JFrame is opened which shows the image in full screen.
The problem i am facing is that when the user double clicks the image is shown in new window as expected, however the imageIcon which was earlier visible in the JTable gets dissapeared and instead a string is shown having value as javax.swing.ImageIcon@1ce5bc4d. So how do i get back the imageIcon after completion of the double click event ?
Here is my code(the column payment_receipt is the blob):

String query = "Select payment_date,payment_amt,payment_receipt from fooTable";
conn = dbTest.connect();
try {
PreparedStatement ps = conn.prepareStatement(query);
ResultSet rs = ps.executeQuery();
ResultSetMetaData rsMetaData = (ResultSetMetaData) rs.getMetaData();
int columns = rsMetaData.getColumnCount();
//names of columns
Vector<String>columnNames = new Vector<String>();
for(int i=1;i<=columns;i++)
{
columnNames.add(rsMetaData.getColumnName(i));
}
//data of table
Vector<Vector<Object>> data = new Vector<Vector<Object>>();
while (rs.next()) {
Vector<Object> vector = new Vector<Object>();
for (int columnIndex = 1; columnIndex <= columns; columnIndex++) 
{
if (columnIndex ==3 ) //starting index is 1
{  // image column
Blob blob = rs.getBlob("payment_receipt");
if(blob!=null)
{
int blobLength = (int) blob.length();  
byte[] bytes = blob.getBytes(1, blobLength);
blob.free();
BufferedImage img=null;
try {
img = ImageIO.read(new ByteArrayInputStream(bytes));
icon = new ImageIcon(img);
vector.addElement(icon);
} 
catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
} 
else 
{
vector.addElement(rs.getObject(columnIndex));
}
}
data.add(vector);
}
table = new JTable(new DefaultTableModel(data,columnNames))
{
@Override
public Class<?> getColumnClass(int column) {
if(column==2)
{
return ImageIcon.class;
}
else
return Object.class;
}
};
table.setRowHeight(200);//to display the receipt
table.setPreferredScrollableViewportSize(this.getPreferredSize());
table.addMouseListener(new MouseAdapter() {
public void mousePressed(MouseEvent mouseEvent)
{
JTable table = (JTable)mouseEvent.getSource();
Point point = mouseEvent.getPoint();
int row = table.rowAtPoint(point);//the index of row where the double click event too place
int column = table.columnAtPoint(point);
if(mouseEvent.getClickCount()==2 && table.getSelectedRow() !=-1)
{
if(column==2)//image column,so open image in full screen
{
Object obj = table.getValueAt(row, column);
if(obj!=null)
{
if(obj.getClass().equals(ImageIcon.class))
{
ImageIcon icon = (ImageIcon)obj;
jf = new JFrame();
jf.setDefaultCloseOperation(JFrame.HIDE_ON_CLOSE);
jf.setBounds(GraphicsEnvironment.getLocalGraphicsEnvironment().getMaximumWindowBounds());
jf.add(new JLabel(icon));
jf.setVisible(true);
loadPaymentsTable();
}
else
{
JOptionPane.showMessageDialog(null, "No image available");
loadPaymentsTable();
}
}
else
{
JOptionPane.showMessageDialog(null, "No image available");
loadPaymentsTable();
}
}
}
}
});
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

It's possible using the same ImageIcon in two JFrames is causing the issue; make a copy of the image for the new window.

Native resources used by java components, especially images and BufferedImages are sensitive to re-use and disposal.

i got the solution by changing the ImageIcon.class to Icon.class here:

@Override
public Class<?> getColumnClass(int column) {
if(column==2)
{
return Icon.class;
}
else
return Object.class;
}