Eu estou tentando baixar meus email com um app java. Mas não estou conseguindo, alguém podeira me orientar em como posso fazer isso. Já possuo o JavaMail. Só preciso de ajuda com o código.
Segue o código que estou utilizando e o erro:
import java.io.*;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.util.*;
import javax.mail.*;
import javax.net.ssl.SSLContext;
import com.sun.mail.imap.IMAPFolder;
public class SendEmail {
public static void main(String[] args) throws MessagingException, IOException, NoSuchAlgorithmException, KeyManagementException {
SSLContext context = SSLContext.getInstance("TLS");
context.init(null, null, null);
String[] supportedProtocols = context.getDefaultSSLParameters().getProtocols();
System.out.println(Arrays.toString(supportedProtocols));
IMAPFolder folder = null;
Store store = null;
String subject = null;
try
{
Properties props = System.getProperties();
props.setProperty("mail.store.protocol", "imaps");
Session session = Session.getDefaultInstance(props, null);
store = session.getStore("imaps");
store.connect("imap.googlemail.com","[email protected]", "...");
folder = (IMAPFolder) store.getFolder("[Gmail]/Spam");
if(!folder.isOpen())
folder.open(Folder.READ_WRITE);
Message[] messages = folder.getMessages();
System.out.println("No of Messages : " + folder.getMessageCount());
System.out.println("No of Unread Messages : " + folder.getUnreadMessageCount());
System.out.println(messages.length);
for (int i=0; i < messages.length;i++)
{
System.out.println("*****************************************************************************");
System.out.println("MESSAGE " + (i + 1) + ":");
Message msg = messages[i];
subject = msg.getSubject();
System.out.println("Subject: " + subject);
System.out.println("From: " + msg.getFrom()[0]);
System.out.println("To: "+msg.getAllRecipients()[0]);
System.out.println("Date: "+msg.getReceivedDate());
System.out.println("Size: "+msg.getSize());
System.out.println(msg.getFlags());
System.out.println("Body: \n"+ msg.getContent());
System.out.println(msg.getContentType());
}
}
finally
{
if (folder != null && folder.isOpen()) { folder.close(true); }
if (store != null) { store.close(); }
}
}
}
Erro:
Exception in thread "main" javax.mail.MessagingException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target;
nested exception is:
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at com.sun.mail.imap.IMAPStore.protocolConnect(IMAPStore.java:742)
at javax.mail.Service.connect(Service.java:366)
at javax.mail.Service.connect(Service.java:246)
at view.forms.login.SendEmail.main(SendEmail.java:36)
Caused by: javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at java.base/sun.security.ssl.Alert.createSSLException(Alert.java:131)
at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:370)
at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:313)
at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:308)
at java.base/sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(CertificateMessage.java:654)
at java.base/sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(CertificateMessage.java:473)
at java.base/sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(CertificateMessage.java:369)
at java.base/sun.security.ssl.SSLHandshake.consume(SSLHandshake.java:396)
at java.base/sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:480)
at java.base/sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:458)
at java.base/sun.security.ssl.TransportContext.dispatch(TransportContext.java:200)
at java.base/sun.security.ssl.SSLTransport.decode(SSLTransport.java:172)
at java.base/sun.security.ssl.SSLSocketImpl.decode(SSLSocketImpl.java:1500)
at java.base/sun.security.ssl.SSLSocketImpl.readHandshakeRecord(SSLSocketImpl.java:1415)
at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:450)
at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:421)
at com.sun.mail.util.SocketFetcher.configureSSLSocket(SocketFetcher.java:626)
at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:400)
at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:238)
at com.sun.mail.iap.Protocol.<init>(Protocol.java:134)
at com.sun.mail.imap.protocol.IMAPProtocol.<init>(IMAPProtocol.java:131)
at com.sun.mail.imap.IMAPStore.newIMAPProtocol(IMAPStore.java:763)
at com.sun.mail.imap.IMAPStore.protocolConnect(IMAPStore.java:698)
... 3 more
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at java.base/sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:439)
at java.base/sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:306)
at java.base/sun.security.validator.Validator.validate(Validator.java:264)
at java.base/sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:231)
at java.base/sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:132)
at java.base/sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(CertificateMessage.java:638)
... 21 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at java.base/sun.security.provider.certpath.SunCertPathBuilder.build(SunCertPathBuilder.java:141)
at java.base/sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:126)
at java.base/java.security.cert.CertPathBuilder.build(CertPathBuilder.java:297)
at java.base/sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:434)
... 26 more
