求楼上高人指点 我这边挂载的时候报错 如何是好

[oracle@rdt-test lib]$ java -jar osbws_install.jar -AWSID ak_id -AWSKey sk_id -walletDir $ORACLE_HOME/osbws_wallet -libDir $ORACLE_HOME/lib -location eu-de -awsEndPoint obs.eu-de.otc.t-systems.com -libPlatform linux64

Oracle Secure Backup Web Service Install Tool, build 2017-01-25

AWS credentials are valid.

Exception in thread "main" 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(Alerts.java:192)

at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1964)

at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:328)

at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:322)

at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1614)

at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:216)

at sun.security.ssl.Handshaker.processLoop(Handshaker.java:1052)

at sun.security.ssl.Handshaker.process_record(Handshaker.java:987)

at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1072)

at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1385)

at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1413)

at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1397)

at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:559)

at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185)

at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:162)

at oracle.backup.util.CreateWallet.getCertificate(CreateWallet.java:255)

at oracle.backup.util.CreateWallet.createWallet(CreateWallet.java:168)

at oracle.backup.s3.install.S3Config.createWallet(S3Config.java:439)

at oracle.backup.s3.install.S3Config.doConfig(S3Config.java:241)

at oracle.backup.s3.install.S3Config.main(S3Config.java:221)

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(PKIXValidator.java:397)

at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:302)

at sun.security.validator.Validator.validate(Validator.java:262)

at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:324)

at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:229)

at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:124)

at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1596)

... 15 more

Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

at sun.security.provider.certpath.SunCertPathBuilder.build(SunCertPathBuilder.java:141)

at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:126)

at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:280)

at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:392)

... 21 more

[oracle@rdt-test lib]$