Java Swing - Inserindo caixa de texto (JTextField) de forma dinâmica em um painel com o Layout GridBagLayout

//Insira um Panel chamado: jpanelDinamico
//Mude o layout para GridBagLayout

 

    private Map<String, JTextField> jtxtMap = new HashMap<>();
    private GridBagConstraints gbc = new GridBagConstraints();
    
    private void limparPainel(){
        this.jpanelDinamico.removeAll();
        this.jtxtMap.clear();               
    }//end method
    
    private void atualizarPainel(){
        SwingUtilities.invokeLater(() -> { updatePanel(this.jpanelDinamico); });            
    }//end method
    
    private void updatePanel(JPanel panel) {        
        panel.revalidate();
        panel.repaint();          
        this.pack();        
    }//end method
    
    private void addLabelTextFieldPair(String labelText, String fieldName, JPanel panel) {
        // Largura (preferred) do JTextField
        JTextField textField = new JTextField(20);
        
        // Armazena referência ao JTextField dinâmico
        this.jtxtMap.put(fieldName, textField);
        
        JLabel label = new JLabel(labelText);
        
        //Largura da label 50. Altura igual do jtextField
        label.setPreferredSize(new Dimension(50, textField.getPreferredSize().height));
        
        gbc.gridx = 1;
        panel.add(label, gbc);
        
        gbc.gridx = 2;
        panel.add(textField, gbc);
    }//end method
 

... 

//Como usar

this.limparPainel();
        jtxtMap.get("nameField").setText("New Name");
        jtxtMap.get("ageField").setText("30");
        jtxtMap.get("emailField").setText("new@example.com");
this.atualizarPainel();