Breaking a focuslost event in validating a JTextfield

Question

This problem seems to occur often but I have not found a solution. A JTextfield gets its content validated (for example the field must not be blank) when the focus on the field is lost, and retains the focus until the user enters valid data, after which the focus moves to another field. But say the user decides not to proceed with the input and just decides to click a Close or Exit JButton and come back later. Of course each click of the Close button triggers the focuslost validation on the textfield, making it programatically impossible to quit the frame normally. How does one break the focus on the textfield and exit gracefully?

Answer 1

Yes, that works. In the jtextfieldFieldFocusLost method i included:
String jcomponent = evt.getOppositeComponent().getClass().getName();
       if (jcomponent.equals("javax.swing.JTextField"))
          ..do the validation
       else
         ..let the Quit button close the form
       }Great answer, many thanks.