java – NullPointerException – Battery overflow in Português

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O código do botão

vt private btnCadastraActionPerformed (java.awt.event.ActionEvent evt) {
// TODO adds your manipulation code here:
boolean inseriu = false;
try {
inseriu = ctrlAdm.insereAdministrador (this.txtNome.getText (), this.txtSenha.getText ()); // linha 102
} catch (SQLException ex) {
Logger.getLogger (FrmCadastraUsuario.class.getName ()). Log (Level.SEVERE, null, ex);
}
if (inseriu) {
JOptionPane.showMessageDialog (null, "Inserido com sucesso");
}
}   

An excuse:

Exception in the thread "AWT-EventQueue-0" java.lang.NullPointerException

at view.FrmCadastraUsuario.btnCadastraActionPerformed (FrmCadastraUsuario.java:102)

at view.FrmCadastraUsuario.access $ 000 (FrmCadastraUsuario.java:18)
at view.FrmCadastraUsuario $ 1.ActionPerformed (FrmCadastraUsuario.java:48)

at javax.swing.AbstractButton.fireActionPerformed (AbstractButton.java:2022)

at the address javax.swing.AbstractButton $ Handler.actionPerformed (AbstractButton.java:2348)

at the address javax.swing.DefaultButtonModel.fireActionPerformed (DefaultButtonModel.java:402)

to javax.swing.DefaultButtonModel.setPressed (DefaultButtonModel.java:259)

on javax.swing.plaf.basic.BasicButtonListener.mouseReleased (BasicButtonListener.java:252)

to the address java.awt.Component.processMouseEvent (Component.java:6539)
at the address javax.swing.JComponent.processMouseEvent (JComponent.java:3324)
at java.awt.Component.processEvent (Component.java:6304)
on java.awt.Container.processEvent (Container.java:2239)
to the address java.awt.Component.dispatchEventImpl (Component.java:4889)
to the address java.awt.Container.dispatchEventImpl (Container.java:2297)
to the address java.awt.Component.dispatchEvent (Component.java:4711)
at java.awt.LightweightDispatcher.retargetMouseEvent (Container.java:4904)

to the address java.awt.LightweightDispatcher.processMouseEvent (Container.java:4535)

to the address java.awt.LightweightDispatcher.dispatchEvent (Container.java:4476)

to the address java.awt.Container.dispatchEventImpl (Container.java:2283)
at the address java.awt.Window.dispatchEventImpl (Window.java:2746)
to the address java.awt.Component.dispatchEvent (Component.java:4711)
at the address java.awt.EventQueue.dispatchEventImpl (EventQueue.java:760)
at java.awt.EventQueue.access 500 $ (EventQueue.java:97)
at java.awt.EventQueue $ 3.run (EventQueue.java:709)
at java.awt.EventQueue $ 3.run (EventQueue.java:703)
on java.security.AccessController.doPrivileged (Native Method)
at the address java.security.ProtectionDomain $ JavaSecurityAccessImpl.doIntersectionPrivilege (ProtectionDomain.java:74)

at the address java.security.ProtectionDomain $ JavaSecurityAccessImpl.doIntersectionPrivilege (ProtectionDomain.java:84)

at java.awt.EventQueue $ 4.run (EventQueue.java:733)
at java.awt.EventQueue $ 4.run (EventQueue.java:731)
on java.security.AccessController.doPrivileged (Native Method)
at the address java.security.ProtectionDomain $ JavaSecurityAccessImpl.doIntersectionPrivilege (ProtectionDomain.java:74)

at the address java.awt.EventQueue.dispatchEvent (EventQueue.java:730)
on java.awt.EventDispatchThread.pumpOneEventForFilters (EventDispatchThread.java:205)

at the address java.awt.EventDispatchThread.pumpEventsForFilter (EventDispatchThread.java:116)

on java.awt.EventDispatchThread.pumpEventsForHierarchy (EventDispatchThread.java:105)

on java.awt.EventDispatchThread.pumpEvents (EventDispatchThread.java:101)

on java.awt.EventDispatchThread.pumpEvents (EventDispatchThread.java:93)

at the address java.awt.EventDispatchThread.run (EventDispatchThread.java:82)