Retorno de java.lang.RuntimeException: java.lang.reflect.InvocationTargetException ao executar métodos Criar Conta, Sacar e Depositar

Programação Java
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#1

Bom dia galera!!
Sou novo aqui no GUJ e efetuei o cadastro já que estou voltando a estudar Java pela apostila da Caelum 11-Java e Orientação a Objetos procurando seguir a mesma a risca, bem como já havia procurado algum tópico que houvesse essa resposta contudo não encontrei.
No capítulo de javadoc e arquivos jar nos últimos exercícios envolvendo interface gráfica e JavaFX realizei a importação do arquivo jar fj11-lib-contas através de um dos códigos baixados no google para o meu projeto através das opções: Project > Properties > Java Build Path > Libraries > Modulepath e então selecionei o botão Add External JARs onde adicionei o arquivo fj11-lib-contas.jar.
Feito isso segui tudo confome as explicações da apostila para gerar a conta, o saque e o depósito:

package br.com.caelum.contas;
import br.com.caelum.javafx.api.util.Evento;
import br.com.caelum.contas.modelo.Conta;

public class ManipuladorDeContas {

private Conta conta;

public void criaConta(Evento evento) {
	this.conta = new Conta();
	this.conta.setAgencia("3131");
	this.conta.setNumero(2144);
	this.conta.setTitular("Exemplo");
}

public void deposita(Evento evento) {
	double valorDigitado = evento.getDouble("valor");
	this.conta.deposita(valorDigitado);   	
}

public void saca(Evento evento) {
	double valorDigitado = evento.getDouble("valor");
	this.conta.saca(valorDigitado);
}

}

O main principal:
package br.com.caelum.contas.main;

import br.com.caelum.javafx.api.main.TelaDeContas;

public class TestaContas {

public static void main(String[] args) {
	TelaDeContas.main(args);
}

}

E sua conta com os atributos, métodos e getters e setters. Até então tudo ok, a interface abriu e tudo mais mas na hora de criar a conta a seguinte exceção é lançada:

Exception in thread "JavaFX Application Thread" java.lang.RuntimeException: java.lang.reflect.InvocationTargetException at javafx.fxml/javafx.fxml.FXMLLoader$MethodHandler.invoke(Unknown Source) at javafx.fxml/javafx.fxml.FXMLLoader$ControllerMethodEventHandler.handle(Unknown Source) at javafx.base/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(Unknown Source) ....

E ao sacar e depositar ele avisa que o campo procurado não possui valor do tipo double. E para verificar o tipo e chamar o método adequado sendo que o mesmo está declarado como double.
Gostaria de saber como tratar essa exceção e corrigir os métodos. Valeu!

#2

Posta o stacktrace completo, é provável que a causa esteja nele.

#3

Quando o “Criar Conta” é selecionado no formulário:

Exception in thread "JavaFX Application Thread" java.lang.RuntimeException: java.lang.reflect.InvocationTargetException at javafx.fxml/javafx.fxml.FXMLLoader$MethodHandler.invoke(Unknown Source) at javafx.fxml/javafx.fxml.FXMLLoader$ControllerMethodEventHandler.handle(Unknown Source) at javafx.base/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source) at javafx.base/com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(Unknown Source) at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventUtil.fireEventImpl(Unknown Source) at javafx.base/com.sun.javafx.event.EventUtil.fireEvent(Unknown Source) at javafx.base/javafx.event.Event.fireEvent(Unknown Source) at javafx.graphics/javafx.scene.Node.fireEvent(Unknown Source) at javafx.controls/javafx.scene.control.Button.fire(Unknown Source) at javafx.controls/com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(Unknown Source) at javafx.controls/com.sun.javafx.scene.control.inputmap.InputMap.handle(Unknown Source) at javafx.base/com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(Unknown Source) at javafx.base/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source) at javafx.base/com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(Unknown Source) at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventUtil.fireEventImpl(Unknown Source) at javafx.base/com.sun.javafx.event.EventUtil.fireEvent(Unknown Source) at javafx.base/javafx.event.Event.fireEvent(Unknown Source) at javafx.graphics/javafx.scene.Scene$MouseHandler.process(Unknown Source) at javafx.graphics/javafx.scene.Scene$MouseHandler.access$1300(Unknown Source) at javafx.graphics/javafx.scene.Scene.processMouseEvent(Unknown Source) at javafx.graphics/javafx.scene.Scene$ScenePeerListener.mouseEvent(Unknown Source) at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(Unknown Source) at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(Unknown Source) at java.base/java.security.AccessController.doPrivileged(Native Method) at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$2(Unknown Source) at javafx.graphics/com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(Unknown Source) at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(Unknown Source) at javafx.graphics/com.sun.glass.ui.View.handleMouseEvent(Unknown Source) at javafx.graphics/com.sun.glass.ui.View.notifyMouse(Unknown Source) at javafx.graphics/com.sun.glass.ui.win.WinApplication._runLoop(Native Method) at javafx.graphics/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(Unknown Source) at java.base/java.lang.Thread.run(Unknown Source) Caused by: java.lang.reflect.InvocationTargetException at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.base/java.lang.reflect.Method.invoke(Unknown Source) at com.sun.javafx.reflect.Trampoline.invoke(Unknown Source) at jdk.internal.reflect.GeneratedMethodAccessor2.invoke(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.base/java.lang.reflect.Method.invoke(Unknown Source) at javafx.base/com.sun.javafx.reflect.MethodUtil.invoke(Unknown Source) at javafx.fxml/com.sun.javafx.fxml.MethodHelper.invoke(Unknown Source) ... 48 more Caused by: java.lang.NoClassDefFoundError: com/sun/xml/internal/ws/util/StringUtils at br.com.caelum.javafx.api.controllers.ContasController.populaTela(ContasController.java:81) at br.com.caelum.javafx.api.controllers.ContasController.atualizaConta(ContasController.java:67) at br.com.caelum.javafx.api.controllers.ContasController.executaAcao(ContasController.java:57) at br.com.caelum.javafx.api.controllers.ContasController.criaConta(ContasController.java:42) ... 58 more Caused by: java.lang.ClassNotFoundException: com.sun.xml.internal.ws.util.StringUtils at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(Unknown Source) at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(Unknown Source) at java.base/java.lang.ClassLoader.loadClass(Unknown Source) ... 62 more

Quando o botão “Sacar” que chama o método “saca” é selecionado:
Exception in thread "JavaFX Application Thread" java.lang.RuntimeException: java.lang.reflect.InvocationTargetException at javafx.fxml/javafx.fxml.FXMLLoader$MethodHandler.invoke(Unknown Source) at javafx.fxml/javafx.fxml.FXMLLoader$ControllerMethodEventHandler.handle(Unknown Source) at javafx.base/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source) at javafx.base/com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(Unknown Source) at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventUtil.fireEventImpl(Unknown Source) at javafx.base/com.sun.javafx.event.EventUtil.fireEvent(Unknown Source) at javafx.base/javafx.event.Event.fireEvent(Unknown Source) at javafx.graphics/javafx.scene.Node.fireEvent(Unknown Source) at javafx.controls/javafx.scene.control.Button.fire(Unknown Source) at javafx.controls/com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(Unknown Source) at javafx.controls/com.sun.javafx.scene.control.inputmap.InputMap.handle(Unknown Source) at javafx.base/com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(Unknown Source) at javafx.base/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source) at javafx.base/com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(Unknown Source) at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventUtil.fireEventImpl(Unknown Source) at javafx.base/com.sun.javafx.event.EventUtil.fireEvent(Unknown Source) at javafx.base/javafx.event.Event.fireEvent(Unknown Source) at javafx.graphics/javafx.scene.Scene$MouseHandler.process(Unknown Source) at javafx.graphics/javafx.scene.Scene$MouseHandler.access$1300(Unknown Source) at javafx.graphics/javafx.scene.Scene.processMouseEvent(Unknown Source) at javafx.graphics/javafx.scene.Scene$ScenePeerListener.mouseEvent(Unknown Source) at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(Unknown Source) at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(Unknown Source) at java.base/java.security.AccessController.doPrivileged(Native Method) at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$2(Unknown Source) at javafx.graphics/com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(Unknown Source) at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(Unknown Source) at javafx.graphics/com.sun.glass.ui.View.handleMouseEvent(Unknown Source) at javafx.graphics/com.sun.glass.ui.View.notifyMouse(Unknown Source) at javafx.graphics/com.sun.glass.ui.win.WinApplication._runLoop(Native Method) at javafx.graphics/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(Unknown Source) at java.base/java.lang.Thread.run(Unknown Source) Caused by: java.lang.reflect.InvocationTargetException at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.base/java.lang.reflect.Method.invoke(Unknown Source) at com.sun.javafx.reflect.Trampoline.invoke(Unknown Source) at jdk.internal.reflect.GeneratedMethodAccessor2.invoke(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.base/java.lang.reflect.Method.invoke(Unknown Source) at javafx.base/com.sun.javafx.reflect.MethodUtil.invoke(Unknown Source) at javafx.fxml/com.sun.javafx.fxml.MethodHelper.invoke(Unknown Source) ... 48 more Caused by: java.lang.RuntimeException: java.lang.reflect.InvocationTargetException at br.com.caelum.javafx.api.controllers.Controller.invocaMetodo(Controller.java:66) at br.com.caelum.javafx.api.controllers.ContasController.executaAcao(ContasController.java:56) at br.com.caelum.javafx.api.controllers.ContasController.saca(ContasController.java:47) ... 58 more Caused by: java.lang.reflect.InvocationTargetException at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.base/java.lang.reflect.Method.invoke(Unknown Source) at br.com.caelum.javafx.api.controllers.Controller.invocaMetodo(Controller.java:54) ... 60 more Caused by: java.lang.RuntimeException: O campo procurado não possui valor do tipo double. Verifique o tipo e chame o método adequado. at br.com.caelum.javafx.api.util.Evento.getDouble(Evento.java:31) at br.com.caelum.contas.ManipuladorDeContas.saca(ManipuladorDeContas.java:23) ... 65 more

Quando o botão “Depositar” que chama o método “deposita” é selecionado:
Exception in thread "JavaFX Application Thread" java.lang.RuntimeException: java.lang.reflect.InvocationTargetException at javafx.fxml/javafx.fxml.FXMLLoader$MethodHandler.invoke(Unknown Source) at javafx.fxml/javafx.fxml.FXMLLoader$ControllerMethodEventHandler.handle(Unknown Source) at javafx.base/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source) at javafx.base/com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(Unknown Source) at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventUtil.fireEventImpl(Unknown Source) at javafx.base/com.sun.javafx.event.EventUtil.fireEvent(Unknown Source) at javafx.base/javafx.event.Event.fireEvent(Unknown Source) at javafx.graphics/javafx.scene.Node.fireEvent(Unknown Source) at javafx.controls/javafx.scene.control.Button.fire(Unknown Source) at javafx.controls/com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(Unknown Source) at javafx.controls/com.sun.javafx.scene.control.inputmap.InputMap.handle(Unknown Source) at javafx.base/com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(Unknown Source) at javafx.base/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source) at javafx.base/com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(Unknown Source) at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source) at javafx.base/com.sun.javafx.event.EventUtil.fireEventImpl(Unknown Source) at javafx.base/com.sun.javafx.event.EventUtil.fireEvent(Unknown Source) at javafx.base/javafx.event.Event.fireEvent(Unknown Source) at javafx.graphics/javafx.scene.Scene$MouseHandler.process(Unknown Source) at javafx.graphics/javafx.scene.Scene$MouseHandler.access$1300(Unknown Source) at javafx.graphics/javafx.scene.Scene.processMouseEvent(Unknown Source) at javafx.graphics/javafx.scene.Scene$ScenePeerListener.mouseEvent(Unknown Source) at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(Unknown Source) at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(Unknown Source) at java.base/java.security.AccessController.doPrivileged(Native Method) at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$2(Unknown Source) at javafx.graphics/com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(Unknown Source) at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(Unknown Source) at javafx.graphics/com.sun.glass.ui.View.handleMouseEvent(Unknown Source) at javafx.graphics/com.sun.glass.ui.View.notifyMouse(Unknown Source) at javafx.graphics/com.sun.glass.ui.win.WinApplication._runLoop(Native Method) at javafx.graphics/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(Unknown Source) at java.base/java.lang.Thread.run(Unknown Source) Caused by: java.lang.reflect.InvocationTargetException at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.base/java.lang.reflect.Method.invoke(Unknown Source) at com.sun.javafx.reflect.Trampoline.invoke(Unknown Source) at jdk.internal.reflect.GeneratedMethodAccessor2.invoke(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.base/java.lang.reflect.Method.invoke(Unknown Source) at javafx.base/com.sun.javafx.reflect.MethodUtil.invoke(Unknown Source) at javafx.fxml/com.sun.javafx.fxml.MethodHelper.invoke(Unknown Source) ... 48 more Caused by: java.lang.RuntimeException: java.lang.reflect.InvocationTargetException at br.com.caelum.javafx.api.controllers.Controller.invocaMetodo(Controller.java:66) at br.com.caelum.javafx.api.controllers.ContasController.executaAcao(ContasController.java:56) at br.com.caelum.javafx.api.controllers.ContasController.deposita(ContasController.java:52) ... 58 more Caused by: java.lang.reflect.InvocationTargetException at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.base/java.lang.reflect.Method.invoke(Unknown Source) at br.com.caelum.javafx.api.controllers.Controller.invocaMetodo(Controller.java:54) ... 60 more Caused by: java.lang.RuntimeException: O campo procurado não possui valor do tipo double. Verifique o tipo e chame o método adequado. at br.com.caelum.javafx.api.util.Evento.getDouble(Evento.java:31) at br.com.caelum.contas.ManipuladorDeContas.deposita(ManipuladorDeContas.java:18) ... 65 more

Acredito que o stacktrace das três execuções sejam a mesma, não sei qual o problema dentro dos três métodos agora

#5

Essa é a chamada do formulário TelaDeContas que se encontra no pacote br.com.caelum.javafx.api.main que se encontra no fj11-lib-contas.jar
teladecontas

#6

Falta importar:

Verifique seu código na linha onde dá este:

#7

Rodrigo, baixei o jar correspondente a esse import e mesmo assim ele não está aceitando na hora em que digitei o import com.sun.xml.internal.ws.util.StringUtils juntamente aos outros ele deu aquela mensagem com o x mencionando que a importação não pode ser resolvida. Fiz o procedimento de import pelo project > properties > java build path > libraries e inseri o mesmo dentro do modulepath, também tentei pelo classpath mas o erro persiste.

Aqui ele menciona que a linha é essa de acordo com o stacktrace:
Caused by: java.lang.RuntimeException: O campo procurado não possui valor do tipo double. Verifique o tipo e chame o método adequado. at br.com.caelum.javafx.api.util.Evento.getDouble(Evento.java:31) at br.com.caelum.contas.ManipuladorDeContas.saca(ManipuladorDeContas.java:23) ... 65 more

package br.com.caelum.contas;

import br.com.caelum.javafx.api.util.Evento;
import br.com.caelum.contas.modelo.Conta;

public class ManipuladorDeContas {

private Conta conta;

public void criaConta(Evento evento) {
	this.conta = new Conta();
	this.conta.setAgencia("3131");
	this.conta.setNumero(2144);
	this.conta.setTitular("Maria das Dores");
}

public void deposita(Evento evento) {
 /*ERRO NESSA LINHA ABAIXO:*/
	double valorDigitado = evento.getDouble("valor");
	this.conta.deposita(valorDigitado);   	
}

public void saca(Evento evento) {
 /*ERRO NESSA LINHA ABAIXO:*/
	double valorDigitado = evento.getDouble("valor");
	this.conta.saca(valorDigitado);
}

}`

Agora nessa linha br.com.caelum.javafx.api.util.Evento.getDouble(Evento.java:31) que ele acusa erro eu não consigo entrar e editar o código fonte

exemplo
exemplo.jpg1365×705 247 KB