Hi all,

Anyone has knowledge about this error. It seems to be a java issue:
i cannot connect to a smtp server by TLS...

2016-01-05 14:37:37,823 ERROR Reply#450#BSVTEST#13ff4aee8d9def26b093087c6d7f7f3b -Email was not sent.
javax.mail.MessagingException: Could not convert socket to TLS;
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
at com.sun.mail.smtp.SMTPTransport.startTLS(SMTPTransport.java:1907)
at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:666)
at javax.mail.Service.connect(Service.java:317)
at javax.mail.Service.connect(Service.java:176)
at javax.mail.Service.connect(Service.java:125)
at javax.mail.Transport.send0(Transport.java:194)
at javax.mail.Transport.send(Transport.java:124)
at com.bas.basserver.iopipes.EmailSink.A(Unknown Source)
at com.bas.basserver.iopipes.EmailSink.processMessage(Unknown Source)
at org.openadaptor.adaptor.STPipelineController.processMessage(Unknown Source)
at org.openadaptor.adaptor.SimpleController.processMessage(Unknown Source)
at org.openadaptor.adaptor.AbstractSimpleSource.processMessage(Unknown Source)
at org.openadaptor.adaptor.AbstractSimpleSource.sourceProcess(Unknown Source)
at org.openadaptor.adaptor.AbstractSimpleSource.sourceProcess(Unknown Source)
at com.bas.connectionserver.iopipes.RequestReplySource.sendMessages(Unknown Source)
at com.bas.basserver.channels.ChannelManager.A(Unknown Source)
at com.bas.basserver.channels.ChannelManager.sendNotifications(Unknown Source)
at com.bas.basserver.bsmanager.F.A(Unknown Source)
at com.bas.basserver.bsmanager.E.A(Unknown Source)
at com.bas.basserver.executionengine.ExecutionEngine.A(Unknown Source)
at com.bas.basserver.executionengine.ExecutionEngine.handleServiceReplyNotification(Unknown Source)
at com.bas.basserver.bsmanager.F.A(Unknown Source)
at com.bas.basserver.bsmanager.F.A(Unknown Source)
at com.bas.basserver.iopipes.ComponentSink.processMessage(Unknown Source)
at org.openadaptor.adaptor.STPipelineController.processMessage(Unknown Source)
at com.bas.openadaptor.NonTransactionalController.processMessage(Unknown Source)
at org.openadaptor.adaptor.AbstractSimplePipe.processMessage(Unknown Source)
at org.openadaptor.adaptor.STPipelineController.processMessage(Unknown Source)
at com.bas.openadaptor.NonTransactionalController.processMessage(Unknown Source)
at org.openadaptor.adaptor.AbstractSimpleSource.processMessage(Unknown Source)
at org.openadaptor.adaptor.AbstractSimpleSource.sourceProcess(Unknown Source)
at org.openadaptor.adaptor.AbstractSimpleSource.sourceProcess(Unknown Source)
at com.bas.openadaptor.A$_A.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: 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
at sun.security.ssl.Alerts.getSSLException(Unknown Source)
at sun.security.ssl.SSLSocketImpl.fatal(Unknown Source)
at sun.security.ssl.Handshaker.fatalSE(Unknown Source)
at sun.security.ssl.Handshaker.fatalSE(Unknown Source)
at sun.security.ssl.ClientHandshaker.serverCertificate(Unknown Source)
at sun.security.ssl.ClientHandshaker.processMessage(Unknown Source)
at sun.security.ssl.Handshaker.processLoop(Unknown Source)
at sun.security.ssl.Handshaker.process_record(Unknown Source)
at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
at com.sun.mail.util.SocketFetcher.configureSSLSocket(SocketFetcher.java:549)
at com.sun.mail.util.SocketFetcher.startTLS(SocketFetcher.java:486)
at com.sun.mail.smtp.SMTPTransport.startTLS(SMTPTransport.java:1902)
... 33 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 sun.security.validator.PKIXValidator.doBuild(Unknown Source)
at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
at sun.security.validator.Validator.validate(Unknown Source)
at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
... 44 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
at java.security.cert.CertPathBuilder.build(Unknown Source)
... 50 more

Any help would be appreciated