Como resolver o erro "AWT-EventQueue-0"

Boa noite, não sei mais o que fazer para resolver esse problema… por favor se alguém puder me ajudar, ficarei muito grato!
O meu código é:

[code]/*

  • To change this license header, choose License Headers in Project Properties.
  • To change this template file, choose Tools | Templates
  • and open the template in the editor.
    */
    package Formularios;

/**
*

  • @author Marcio
    /
    import java.sql.
    ;
    import javax.swing.JOptionPane;
    import utilitarios.ConectaBanco;

public class FrmEstado extends javax.swing.JFrame {
ConectaBanco conexao = new ConectaBanco();//instancia da classe de conexao

public FrmEstado() {
    initComponents();
    conexao.conecta();//chama o metodo conecta
}

/**
 * This method is called from within the constructor to initialize the form.
 * WARNING: Do NOT modify this code. The content of this method is always
 * regenerated by the Form Editor.
 */
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">                          
private void initComponents() {

    jPanel1 = new javax.swing.JPanel();
    jLabel2 = new javax.swing.JLabel();
    jLabel3 = new javax.swing.JLabel();
    jLabel4 = new javax.swing.JLabel();
    jTextFieldCodigo = new javax.swing.JTextField();
    jTextFieldNome = new javax.swing.JTextField();
    jTextFieldSigla = new javax.swing.JTextField();
    jButtonNovo = new javax.swing.JButton();
    jButtonSalvar = new javax.swing.JButton();
    jButtonExcluir = new javax.swing.JButton();
    jButtonEditar = new javax.swing.JButton();
    jButtonSair = new javax.swing.JButton();
    jScrollPane1 = new javax.swing.JScrollPane();
    jTable1 = new javax.swing.JTable();
    jButtonPrimeiro = new javax.swing.JButton();
    jButtonUltimo = new javax.swing.JButton();
    jButtonAnterior = new javax.swing.JButton();
    jButtonProximo = new javax.swing.JButton();
    jLabel1 = new javax.swing.JLabel();

    setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);
    setTitle("Cadastro de Estados");

    jPanel1.setBorder(javax.swing.BorderFactory.createEtchedBorder());

    jLabel2.setText("Código");

    jLabel3.setText("Nome");

    jLabel4.setText("Sigla");

    jTextFieldCodigo.setDisabledTextColor(new java.awt.Color(0, 0, 0));
    jTextFieldCodigo.setEnabled(false);

    jTextFieldNome.setDisabledTextColor(new java.awt.Color(0, 0, 0));
    jTextFieldNome.setEnabled(false);
    jTextFieldNome.setName("nome"); // NOI18N

    jTextFieldSigla.setDisabledTextColor(new java.awt.Color(0, 0, 0));
    jTextFieldSigla.setEnabled(false);

    jButtonNovo.setIcon(new javax.swing.ImageIcon(getClass().getResource("/imagens/New_32x32.png"))); // NOI18N
    jButtonNovo.setToolTipText("Novo");
    jButtonNovo.addActionListener(new java.awt.event.ActionListener() {
        public void actionPerformed(java.awt.event.ActionEvent evt) {
            jButtonNovoActionPerformed(evt);
        }
    });

    jButtonSalvar.setIcon(new javax.swing.ImageIcon(getClass().getResource("/imagens/Save_32x32.png"))); // NOI18N
    jButtonSalvar.setToolTipText("Salvar");
    jButtonSalvar.setEnabled(false);
    jButtonSalvar.addActionListener(new java.awt.event.ActionListener() {
        public void actionPerformed(java.awt.event.ActionEvent evt) {
            jButtonSalvarActionPerformed(evt);
        }
    });

    jButtonExcluir.setIcon(new javax.swing.ImageIcon(getClass().getResource("/imagens/Delete_32x32.png"))); // NOI18N
    jButtonExcluir.setToolTipText("Excluir");
    jButtonExcluir.setEnabled(false);
    jButtonExcluir.addActionListener(new java.awt.event.ActionListener() {
        public void actionPerformed(java.awt.event.ActionEvent evt) {
            jButtonExcluirActionPerformed(evt);
        }
    });

    jButtonEditar.setIcon(new javax.swing.ImageIcon(getClass().getResource("/imagens/Edit_32x32.png"))); // NOI18N
    jButtonEditar.setToolTipText("Editar");
    jButtonEditar.setEnabled(false);
    jButtonEditar.setName("Editar"); // NOI18N
    jButtonEditar.addActionListener(new java.awt.event.ActionListener() {
        public void actionPerformed(java.awt.event.ActionEvent evt) {
            jButtonEditarActionPerformed(evt);
        }
    });

    jButtonSair.setIcon(new javax.swing.ImageIcon(getClass().getResource("/imagens/Log Out_32x32.png"))); // NOI18N
    jButtonSair.setToolTipText("Sair");
    jButtonSair.addActionListener(new java.awt.event.ActionListener() {
        public void actionPerformed(java.awt.event.ActionEvent evt) {
            jButtonSairActionPerformed(evt);
        }
    });

    jTable1.setModel(new javax.swing.table.DefaultTableModel(
        new Object [][] {
            {null, null, null, null},
            {null, null, null, null},
            {null, null, null, null},
            {null, null, null, null}
        },
        new String [] {
            "Title 1", "Title 2", "Title 3", "Title 4"
        }
    ));
    jScrollPane1.setViewportView(jTable1);

    jButtonPrimeiro.setIcon(new javax.swing.ImageIcon(getClass().getResource("/imagens/Stock Index Up_32x32.png"))); // NOI18N
    jButtonPrimeiro.addActionListener(new java.awt.event.ActionListener() {
        public void actionPerformed(java.awt.event.ActionEvent evt) {
            jButtonPrimeiroActionPerformed(evt);
        }
    });

    jButtonUltimo.setIcon(new javax.swing.ImageIcon(getClass().getResource("/imagens/Stock Index Down_32x32.png"))); // NOI18N
    jButtonUltimo.addActionListener(new java.awt.event.ActionListener() {
        public void actionPerformed(java.awt.event.ActionEvent evt) {
            jButtonUltimoActionPerformed(evt);
        }
    });

    jButtonAnterior.setIcon(new javax.swing.ImageIcon(getClass().getResource("/imagens/Previous_32x32.png"))); // NOI18N
    jButtonAnterior.addActionListener(new java.awt.event.ActionListener() {
        public void actionPerformed(java.awt.event.ActionEvent evt) {
            jButtonAnteriorActionPerformed(evt);
        }
    });

    jButtonProximo.setIcon(new javax.swing.ImageIcon(getClass().getResource("/imagens/Next_32x32.png"))); // NOI18N
    jButtonProximo.addActionListener(new java.awt.event.ActionListener() {
        public void actionPerformed(java.awt.event.ActionEvent evt) {
            jButtonProximoActionPerformed(evt);
        }
    });

    javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
    jPanel1.setLayout(jPanel1Layout);
    jPanel1Layout.setHorizontalGroup(
        jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(jPanel1Layout.createSequentialGroup()
            .addContainerGap()
            .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                .addComponent(jScrollPane1)
                .addGroup(jPanel1Layout.createSequentialGroup()
                    .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
                        .addGroup(javax.swing.GroupLayout.Alignment.LEADING, jPanel1Layout.createSequentialGroup()
                            .addComponent(jLabel3)
                            .addGap(18, 18, 18)
                            .addComponent(jTextFieldNome))
                        .addGroup(javax.swing.GroupLayout.Alignment.LEADING, jPanel1Layout.createSequentialGroup()
                            .addComponent(jButtonNovo, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addGap(18, 18, 18)
                            .addComponent(jButtonSalvar, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addGap(18, 18, 18)
                            .addComponent(jButtonEditar, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addGap(18, 18, 18)
                            .addComponent(jButtonExcluir, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)))
                    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                        .addComponent(jButtonSair, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.PREFERRED_SIZE, 49, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()
                            .addComponent(jLabel4)
                            .addGap(18, 18, 18)
                            .addComponent(jTextFieldSigla, javax.swing.GroupLayout.PREFERRED_SIZE, 35, javax.swing.GroupLayout.PREFERRED_SIZE))))
                .addGroup(jPanel1Layout.createSequentialGroup()
                    .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                        .addGroup(jPanel1Layout.createSequentialGroup()
                            .addComponent(jLabel2)
                            .addGap(18, 18, 18)
                            .addComponent(jTextFieldCodigo, javax.swing.GroupLayout.PREFERRED_SIZE, 35, javax.swing.GroupLayout.PREFERRED_SIZE))
                        .addGroup(jPanel1Layout.createSequentialGroup()
                            .addComponent(jButtonPrimeiro, javax.swing.GroupLayout.PREFERRED_SIZE, 41, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addGap(18, 18, 18)
                            .addComponent(jButtonAnterior, javax.swing.GroupLayout.PREFERRED_SIZE, 41, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addGap(18, 18, 18)
                            .addComponent(jButtonProximo, javax.swing.GroupLayout.PREFERRED_SIZE, 41, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addGap(18, 18, 18)
                            .addComponent(jButtonUltimo, javax.swing.GroupLayout.PREFERRED_SIZE, 41, javax.swing.GroupLayout.PREFERRED_SIZE)))
                    .addGap(0, 0, Short.MAX_VALUE)))
            .addContainerGap())
    );
    jPanel1Layout.setVerticalGroup(
        jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(jPanel1Layout.createSequentialGroup()
            .addGap(39, 39, 39)
            .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                .addComponent(jLabel2)
                .addComponent(jTextFieldCodigo, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
            .addGap(18, 18, 18)
            .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                .addComponent(jLabel3)
                .addComponent(jTextFieldNome, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addComponent(jLabel4)
                .addComponent(jTextFieldSigla, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
            .addGap(28, 28, 28)
            .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                .addComponent(jButtonSair, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addComponent(jButtonNovo, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addComponent(jButtonSalvar, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addComponent(jButtonExcluir, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addComponent(jButtonEditar, javax.swing.GroupLayout.PREFERRED_SIZE, 45, javax.swing.GroupLayout.PREFERRED_SIZE))
            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
            .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                .addComponent(jButtonPrimeiro, javax.swing.GroupLayout.PREFERRED_SIZE, 41, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addComponent(jButtonAnterior)
                .addComponent(jButtonProximo)
                .addComponent(jButtonUltimo))
            .addGap(18, 18, 18)
            .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 103, javax.swing.GroupLayout.PREFERRED_SIZE)
            .addContainerGap())
    );

    jButtonEditar.getAccessibleContext().setAccessibleDescription("");

    jLabel1.setFont(new java.awt.Font("Tahoma", 1, 18)); // NOI18N
    jLabel1.setForeground(new java.awt.Color(255, 0, 51));
    jLabel1.setText("Formulário de Cadastro de Estados");

    javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
    getContentPane().setLayout(layout);
    layout.setHorizontalGroup(
        layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(layout.createSequentialGroup()
            .addContainerGap()
            .addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
            .addContainerGap())
        .addGroup(layout.createSequentialGroup()
            .addGap(90, 90, 90)
            .addComponent(jLabel1)
            .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
    );
    layout.setVerticalGroup(
        layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
            .addGap(18, 18, 18)
            .addComponent(jLabel1)
            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
            .addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
            .addContainerGap())
    );

    setSize(new java.awt.Dimension(512, 452));
    setLocationRelativeTo(null);
}// </editor-fold>                        

//botão salvar
private void jButtonSalvarActionPerformed(java.awt.event.ActionEvent evt) {
try {
PreparedStatement pst = conexao.conn.prepareCall(“insert into estados(nome_estado,sigla_estado)values(?,?)”);// passagem do sql para inserção de dados.
pst.setString(1, jTextFieldNome.getText());// jTextFieldNome é o nome da caixa de texto do formulário, tudo que o usuário digitar nela será salvo. Serve para passagem de parametros.
pst.setString(2, jTextFieldSigla.getText());
pst.executeUpdate();//executa a inserção.
JOptionPane.showMessageDialog(rootPane, “Salvo com sucesso.”);
} catch (SQLException ex) {
JOptionPane.showMessageDialog(rootPane, “Erro na inserção. \nErro:”+ex.getMessage());
}
jTextFieldCodigo.setText("");
jTextFieldNome.setText("");
jTextFieldSigla.setText("");
jTextFieldNome.setEnabled(false);
jTextFieldSigla.setEnabled(false);
jButtonEditar.setEnabled(false);
jButtonExcluir.setEnabled(false);
jButtonSalvar.setEnabled(false);
jButtonNovo.setEnabled(true);
}
//botão excluir
private void jButtonExcluirActionPerformed(java.awt.event.ActionEvent evt) {
conexao.executaSQL(“delete from estados where sigla_estado= '”+jTextFieldSigla.getText()+"’");//chama metodo da classe conexao banco para realizar a exclusão
JOptionPane.showMessageDialog(rootPane,“Excluído com sucesso.”);

    jTextFieldCodigo.setText("");
    jTextFieldNome.setText("");
    jTextFieldSigla.setText("");
    jTextFieldNome.setEnabled(false);
    jTextFieldSigla.setEnabled(false);
    jButtonEditar.setEnabled(false);
    jButtonExcluir.setEnabled(false);
    jButtonSalvar.setEnabled(false);
    jButtonNovo.setEnabled(true);
}                                              

//botão fechar
private void jButtonSairActionPerformed(java.awt.event.ActionEvent evt) {
dispose();//fecha o formulário sem fechar o sistema.
}
//botão novo
private void jButtonNovoActionPerformed(java.awt.event.ActionEvent evt) {
jTextFieldCodigo.setText("");
jTextFieldNome.setText("");
jTextFieldSigla.setText("");
jTextFieldNome.setEnabled(true);
jTextFieldSigla.setEnabled(true);
jButtonEditar.setEnabled(true);
jButtonExcluir.setEnabled(true);
jButtonSalvar.setEnabled(true);
jButtonNovo.setEnabled(false);
}
//botão primeiro
private void jButtonPrimeiroActionPerformed(java.awt.event.ActionEvent evt) {
jButtonEditar.setEnabled(true);
jButtonExcluir.setEnabled(true);
try {
conexao.executaSQL(“select * from estados”);
conexao.rs.first();
jTextFieldCodigo.setText(String.valueOf (conexao.rs.getInt(“id_estado”)));
jTextFieldNome.setText(conexao.rs.getString(“nome_estado”));
jTextFieldSigla.setText(conexao.rs.getString(“sigla_estado”));
} catch (SQLException ex) {
JOptionPane.showMessageDialog(rootPane, “Erro ao mostrar dados. \nErro:”+ex.getMessage());
}
}
//botão ultimo
private void jButtonUltimoActionPerformed(java.awt.event.ActionEvent evt) {
jButtonEditar.setEnabled(true);
jButtonExcluir.setEnabled(true);
try {
conexao.executaSQL(“select * from estados”);
conexao.rs.last();
jTextFieldCodigo.setText(String.valueOf (conexao.rs.getInt(“id_estado”)));
jTextFieldNome.setText(conexao.rs.getString(“nome_estado”));
jTextFieldSigla.setText(conexao.rs.getString(“sigla_estado”));
} catch (SQLException ex) {
JOptionPane.showMessageDialog(rootPane, “Erro ao mostrar dados. \nErro:”+ex.getMessage());
}
}
//botão anterior
private void jButtonAnteriorActionPerformed(java.awt.event.ActionEvent evt) {
jButtonEditar.setEnabled(true);
jButtonExcluir.setEnabled(true);
try {
conexao.rs.previous();
jTextFieldCodigo.setText(String.valueOf (conexao.rs.getInt(“id_estado”)));
jTextFieldNome.setText(conexao.rs.getString(“nome_estado”));
jTextFieldSigla.setText(conexao.rs.getString(“sigla_estado”));
} catch (SQLException ex) {
JOptionPane.showMessageDialog(rootPane, “Erro:”+ex.getMessage());
}
}
//botão próximo
private void jButtonProximoActionPerformed(java.awt.event.ActionEvent evt) {
jButtonEditar.setEnabled(true);
jButtonExcluir.setEnabled(true);
try {
conexao.rs.next();
jTextFieldCodigo.setText(String.valueOf (conexao.rs.getInt(“id_estado”)));
jTextFieldNome.setText(conexao.rs.getString(“nome_estado”));
jTextFieldSigla.setText(conexao.rs.getString(“sigla_estado”));
} catch (SQLException ex) {
JOptionPane.showMessageDialog(rootPane, “Erro:”+ex.getMessage());
}
}
//botão editar
private void jButtonEditarActionPerformed(java.awt.event.ActionEvent evt) {

}                                             

/**
 * @param args the command line arguments
 */
public static void main(String args[]) {
    /* Set the Nimbus look and feel */
    //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
    /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
     * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
     */
    try {
        for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
            if ("Nimbus".equals(info.getName())) {
                javax.swing.UIManager.setLookAndFeel(info.getClassName());
                break;
            }
        }
    } catch (ClassNotFoundException ex) {
        java.util.logging.Logger.getLogger(FrmEstado.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (InstantiationException ex) {
        java.util.logging.Logger.getLogger(FrmEstado.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (IllegalAccessException ex) {
        java.util.logging.Logger.getLogger(FrmEstado.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (javax.swing.UnsupportedLookAndFeelException ex) {
        java.util.logging.Logger.getLogger(FrmEstado.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    }
    //</editor-fold>
    //</editor-fold>

    /* Create and display the form */
    java.awt.EventQueue.invokeLater(new Runnable() {
        public void run() {
            new FrmEstado().setVisible(true);
        }
    });
}

// Variables declaration - do not modify                     
private javax.swing.JButton jButtonAnterior;
private javax.swing.JButton jButtonEditar;
private javax.swing.JButton jButtonExcluir;
private javax.swing.JButton jButtonNovo;
private javax.swing.JButton jButtonPrimeiro;
private javax.swing.JButton jButtonProximo;
private javax.swing.JButton jButtonSair;
private javax.swing.JButton jButtonSalvar;
private javax.swing.JButton jButtonUltimo;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JLabel jLabel4;
private javax.swing.JPanel jPanel1;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JTable jTable1;
private javax.swing.JTextField jTextFieldCodigo;
private javax.swing.JTextField jTextFieldNome;
private javax.swing.JTextField jTextFieldSigla;
// End of variables declaration                   

}[/code]

O erro que aparece é :

Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException at Formularios.FrmEstado.jButtonAnteriorActionPerformed(FrmEstado.java:354) at Formularios.FrmEstado.access$700(FrmEstado.java:16) at Formularios.FrmEstado$8.actionPerformed(FrmEstado.java:149) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2346) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252) at java.awt.Component.processMouseEvent(Component.java:6525) at javax.swing.JComponent.processMouseEvent(JComponent.java:3322) at java.awt.Component.processEvent(Component.java:6290) at java.awt.Container.processEvent(Container.java:2234) at java.awt.Component.dispatchEventImpl(Component.java:4881) at java.awt.Container.dispatchEventImpl(Container.java:2292) at java.awt.Component.dispatchEvent(Component.java:4703) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4898) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4533) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4462) at java.awt.Container.dispatchEventImpl(Container.java:2278) at java.awt.Window.dispatchEventImpl(Window.java:2739) at java.awt.Component.dispatchEvent(Component.java:4703) at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:751) at java.awt.EventQueue.access$500(EventQueue.java:97) at java.awt.EventQueue$3.run(EventQueue.java:702) at java.awt.EventQueue$3.run(EventQueue.java:696) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75) at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:86) at java.awt.EventQueue$4.run(EventQueue.java:724) at java.awt.EventQueue$4.run(EventQueue.java:722) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75) at java.awt.EventQueue.dispatchEvent(EventQueue.java:721) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93) at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

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