Erro fantasma.. RESOLVIDO

package ControleEstoque;

import java.beans.PropertyVetoException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JDesktopPane;
import javax.swing.JInternalFrame;

public class ProdutosView extends javax.swing.JInternalFrame {
     private JDesktopPane jDesktop;
    /** Creates new form ProdutosView */
    public ProdutosView(JDesktopPane theDesktop) {
        this.jDesktop = theDesktop;
        initComponents();
    }
    
     private void btSairActionPerformed(java.awt.event.ActionEvent evt) {                                       
        
        setVisible(false);// TODO add your handling code here:
    }                                      

    private void btNovoActionPerformed(java.awt.event.ActionEvent evt) {                                       
        NovoProdutos();// TODO add your handling code here:
    }                                      

    // Variables declaration - do not modify
    private javax.swing.JTable TbProdutos;
    private javax.swing.JButton btAlterar;
    private javax.swing.JButton btApagar;
    private javax.swing.JButton btAtualisar;
    private javax.swing.JButton btNovo;
    private javax.swing.JButton btPesquisar;
    private javax.swing.JButton btSair;
    private javax.persistence.EntityManager estoquePUEntityManager;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JScrollPane jScrollPane1;
    private java.util.List<ControleEstoque.Produtos> produtosList;
    private javax.persistence.Query produtosQuery;
    private javax.swing.JTextField txtPesquisar;
    private org.jdesktop.beansbinding.BindingGroup bindingGroup;
    // End of variables declaration
    private JInternalFrame NovoProdutos;
}