javax.mail.MessagingException: Can't send command to SMTP host; nested exception is: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

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    javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
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    javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
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Root Cause Analysis

  1. sun.security.provider.certpath.SunCertPathBuilderException

    unable to find valid certification path to requested target

    at sun.security.provider.certpath.SunCertPathBuilder.build()
  2. Java RT
    Validator.validate
    1. sun.security.provider.certpath.SunCertPathBuilder.build(SunCertPathBuilder.java:141)
    2. sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:126)
    3. java.security.cert.CertPathBuilder.build(CertPathBuilder.java:280)
    4. sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:382)
    5. sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:292)
    6. sun.security.validator.Validator.validate(Validator.java:260)
    6 frames
  3. Java JSSE
    AppOutputStream.write
    1. sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:324)
    2. sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:229)
    3. sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:124)
    4. sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1491)
    5. sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:216)
    6. sun.security.ssl.Handshaker.processLoop(Handshaker.java:979)
    7. sun.security.ssl.Handshaker.process_record(Handshaker.java:914)
    8. sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1062)
    9. sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375)
    10. sun.security.ssl.SSLSocketImpl.writeRecord(SSLSocketImpl.java:747)
    11. sun.security.ssl.AppOutputStream.write(AppOutputStream.java:123)
    11 frames
  4. JavaMail API (compat)
    TraceOutputStream.write
    1. com.sun.mail.util.TraceOutputStream.write(TraceOutputStream.java:101)
    1 frame
  5. Java RT
    BufferedOutputStream.flush
    1. java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82)
    2. java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140)
    2 frames
  6. JavaMail API (compat)
    SMTPTransport.protocolConnect
    1. com.sun.mail.smtp.SMTPTransport.sendCommand(SMTPTransport.java:1418)
    2. com.sun.mail.smtp.SMTPTransport.sendCommand(SMTPTransport.java:1408)
    3. com.sun.mail.smtp.SMTPTransport.ehlo(SMTPTransport.java:847)
    4. com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:384)
    4 frames
  7. JavaMail API
    Transport.send
    1. javax.mail.Service.connect(Service.java:297)
    2. javax.mail.Service.connect(Service.java:156)
    3. javax.mail.Service.connect(Service.java:105)
    4. javax.mail.Transport.send0(Transport.java:168)
    5. javax.mail.Transport.send(Transport.java:98)
    5 frames
  8. org.apache.jsp
    testEmail_jsp._jspService
    1. org.apache.jsp.testEmail_jsp.sendMail(testEmail_jsp.java:90)
    2. org.apache.jsp.testEmail_jsp._jspService(testEmail_jsp.java:173)
    2 frames
  9. GWT dev
    HttpJspBase.service
    1. org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
    1 frame
  10. JavaServlet
    HttpServlet.service
    1. javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
    1 frame
  11. GWT dev
    JspServlet.service
    1. org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:439)
    2. org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
    3. org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
    3 frames
  12. JavaServlet
    HttpServlet.service
    1. javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
    1 frame
  13. Glassfish Core
    ApplicationFilterChain.doFilter
    1. org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
    2. org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    2 frames
  14. Tomcat WS
    WsFilter.doFilter
    1. org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    1 frame
  15. Glassfish Core
    CoyoteAdapter.service
    1. org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
    2. org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    3. org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
    4. org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
    5. org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
    6. org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
    7. org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
    8. org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:957)
    9. org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
    10. org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423)
    10 frames
  16. Grizzly HTTP
    JIoEndpoint$SocketProcessor.run
    1. org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079)
    2. org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:620)
    3. org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)
    3 frames
  17. Java RT
    ThreadPoolExecutor$Worker.run
    1. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    2. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    2 frames
  18. Tomcat Util
    TaskThread$WrappingRunnable.run
    1. org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    1 frame
  19. Java RT
    Thread.run
    1. java.lang.Thread.run(Thread.java:745)
    1 frame