Exception in thread "AWT-EventQueue-0" com.thoughtworks.xstream.io.StreamException

Programação Java
#1

Esse erro está aparecendo quando faço alguma ação com os botões do meu programa (Cadastrar e Logar). Não consigo identificar onde está o erro e consequentemente, onde posso mudar para que esse erro suma, deve ser na persistencia do dados que está equivocada ou sei lá. Se alguém poder me ajudar eu agradeceria muito, pois isso é um projeto do meu curso.

Trecho de parte do código da ação do botão de login:

private class OuvinteBotaoLogin implements ActionListener{
	
	private JFrame tela;
	
	public OuvinteBotaoLogin(JFrame tela) {
		this.tela = tela;
	}
	
	public void actionPerformed(ActionEvent evento) {
		
		String acessoEmail = email.getText();
		String acessoSenha = new String(campoDeSenha.getPassword());
					
		Persistencia p = new Persistencia();
		Central c = p.recuperarDados("dados.xml");
					
		if(acessoEmail.equals("") && acessoSenha.equals("")) {
			
			JOptionPane.showMessageDialog(tela, "Dados Inválidos!", "Falha", JOptionPane.ERROR_MESSAGE);
			
		}else {	
			
			if(acessoEmail.equals(c.getLocatario().getEmail()) && acessoSenha.equals(c.getLocatario().getSenha())) {
				
				c.setUsuarioLogado(acessoEmail);
				p.salvarDados(c, "dados.xml");
				
				Locatario locatario = c.getLocatario();
			
				new TelaHome(locatario).setLocationRelativeTo(tela);
				dispose();
				
			}else {
				for (Locador locador : c.getLocadoresCadastrados()) {
					if (acessoEmail.equals(locador.getEmail()) && acessoSenha.equals(locador.getSenha())) {

						c.setUsuarioLogado(acessoEmail);
						p.salvarDados(c, "dados.xml");
					
						new TelaHome(locador).setLocationRelativeTo(tela);
						dispose();
					}
				}
			}
		}
	}
#2

package persistencia;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.PrintWriter;

import com.thoughtworks.xstream.XStream;
import com.thoughtworks.xstream.io.xml.DomDriver;

import pojo.Central;

public class Persistencia {

private XStream xstream = new XStream(new DomDriver());

	public void salvarDados(Central obj, String nomeXML) {
	
		try {
			String xml = xstream.toXML(obj);
			File arquivo = new File(nomeXML);
			arquivo.createNewFile();
			PrintWriter salvar = new PrintWriter(arquivo);
			salvar.print(xml);
			salvar.close();
		}catch(IOException e) {
			e.printStackTrace();
		}
	}

	public Central recuperarDados(String nomeXML) {
		File arquivo = new File(nomeXML);
		try {
			if(arquivo.exists()) {
				FileInputStream arq = new FileInputStream(arquivo);
				return(Central) xstream.fromXML(arq);
			}			
		}catch(FileNotFoundException e) {
			e.printStackTrace();
		}
		return new Central();
	}

}

#3

Posta o StackTrace

#4 
Exception in thread "AWT-EventQueue-0" com.thoughtworks.xstream.io.StreamException: 
at com.thoughtworks.xstream.io.xml.DomDriver.createReader(DomDriver.java:117)
at com.thoughtworks.xstream.io.xml.DomDriver.createReader(DomDriver.java:84)
at com.thoughtworks.xstream.XStream.fromXML(XStream.java:1094)
at persistencia.Persistencia.recuperarDados(Persistencia.java:37)
at telas.TelaInicial$OuvinteBotaoLogin.actionPerformed(TelaInicial.java:177)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$500(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown 
    Source)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown 
    Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown 
    Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
    Caused by: com.sun.org.apache.xerces.internal.impl.io.MalformedByteSequenceException: 
    Byte inválido 2 da sequência UTF-8 do byte 3.
at com.sun.org.apache.xerces.internal.impl.io.UTF8Reader.invalidByte(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.io.UTF8Reader.read(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLEntityScanner.load(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLEntityScanner.skipChar(Unknown Source)
atcom.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentCo 
    ntentDriver.next(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source)
atcom.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocume 
    nt(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(Unknown Source)
at com.thoughtworks.xstream.io.xml.DomDriver.createReader(DomDriver.java:108)
... 41 more
#5

Chegou a conferir o conteúdo de seu XML?
Parece corrompido.

Experimenta fazer um flush antes de fechar o arquivo:

PrintWriter salvar = new PrintWriter(arquivo);
salvar.print(xml);
salvar.flush;
salvar.close();
#6

Consegui resolver aqui.

#7

Era só por causa do flush()?

#8

Não, era por causa que o XML nao aceita palavras com acento.

1 curtida