Configuring outbound SSL connection from JBoss EAP 6 / 7

Issue

• Which truststore/keystore is used to hit/access external HTTPS web site?
• connection fails
• Configure keystore/truststore in standalone.xml/domain.xml without system properties

• Getting the following exception

  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) [jsse.jar:1.7.0_05]
          at sun.security.ssl.SSLSocketImpl.fatal(Unknown Source) [jsse.jar:1.7.0_05]
          at sun.security.ssl.Handshaker.fatalSE(Unknown Source) [jsse.jar:1.7.0_05]
          at sun.security.ssl.Handshaker.fatalSE(Unknown Source) [jsse.jar:1.7.0_05]
          at sun.security.ssl.ClientHandshaker.serverCertificate(Unknown Source) [jsse.jar:1.7.0_05]
          at sun.security.ssl.ClientHandshaker.processMessage(Unknown Source) [jsse.jar:1.7.0_05]
          at sun.security.ssl.Handshaker.processLoop(Unknown Source) [jsse.jar:1.7.0_05]
          at sun.security.ssl.Handshaker.process_record(Unknown Source) [jsse.jar:1.7.0_05]
          at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source) [jsse.jar:1.7.0_05]
          at sun.security.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source) [jsse.jar:1.7.0_05]
          at sun.security.ssl.SSLSocketImpl.writeRecord(Unknown Source) [jsse.jar:1.7.0_05]
          at sun.security.ssl.AppOutputStream.write(Unknown Source) [jsse.jar:1.7.0_05]
          at java.io.BufferedOutputStream.flushBuffer(Unknown Source) [rt.jar:1.7.0_05]
          at java.io.BufferedOutputStream.flush(Unknown Source) [rt.jar:1.7.0_05]