DocumentFilter Ignored when using Formatter?

Question

I am shooting myself in the foot but I can't see the bullet.
I can't use a Formatter and a DocumentFilter in the same class. I want the pattern of the Formatter but want to constrain the individual numbers as well. I can get one or the other but not both.
The filter works if I comment out the super call in the constructor.
The mask works if I leave it in but then the filter code doesn't effect GUI output.
Seems like when I extend JFormattedTextField and use
JFormattedTextField(JFormattedTextField.AbstractFormatter formatter)
I lose the ability to get the right Document later.
The code is something like this:
public class MyFormattedField extends JFormattedTextField{
MyFormattedField() {
super(new MyMaskFormatter().getFormatter());
AbstractDocument doc = (AbstractDocument) getDocument();
doc.setDocumentFilter(new myFilter());
class MyMaskFormatter {
private MaskFormatter formatter;
MyMaskFormatter() {
try {
formatter = new MaskFormatter("###.###");
}catch(ParseException pe) {
          // deal with it
public AbstractFormatter getFormatter() { return formatter; }
class MyFilter extends DocumentFilter {
public void replace(DocumentFilter.FilterBypass fb,
int offset,
int length,
String str,
AttributeSet attr)
throws BadLocationException {
str = "1"; // smoke test (do anything, see if it sticks)....
     fb.replace(offset, length, str, attr);

Answer 1

You could try creating a custom paste action:
class MyPasteAction extends DefaultEditorKit.PasteAction
    public void actionPerformed(ActionEvent e)
        try
            //  Get clipboard contents
            Clipboard c = Toolkit.getDefaultToolkit().getSystemClipboard();
            Transferable t = c.getContents( null );
            String data = (String)t.getTransferData( DataFlavor.stringFlavor );
            //  Do your stuff
            data = "<" + data + ">";
            //  Paste your new data
            getFocusedComponent().replaceSelection( data );
            //  If above doesn't work then maybe this will
            StringSelection changedData = new StringSelection( data );
            c.setContents(changedData, changedData);
            //  Invoke default paste Action
            super.actionPerformed(e);
        catch (Exception x) {}
}You install the Action on the text pane using:
Object key = pasteAction.getValue(Action.NAME);
KeyStroke ks = KeyStroke.getKeyStroke(KeyEvent.VK_V, KeyEvent.CTRL_MASK);
textPane.getInputMap().put(ks, key);
textPane.getActionMap().put(key, pasteAction);