Calling REST service Get call over HTTPS and OAuth

[Anonymous]

Hi,
I am trying to call a REST service Get call over HTTPS and OAuth using tRestClient. But I am getting the following error.
Exception in component tRESTClient_1
javax.ws.rs.ProcessingException: java.net.SocketException: SocketException invoking https://voyagerwebapi.dev.caremetx.com/api/DiseaseFund/501/HasBalanceTalendJob: Connection reset
at org.apache.cxf.jaxrs.client.AbstractClient.checkClientException(AbstractClient.java:582)
at org.apache.cxf.jaxrs.client.AbstractClient.preProcessResult(AbstractClient.java:564)
at org.apache.cxf.jaxrs.client.WebClient.doResponse(WebClient.java:1144)
at org.apache.cxf.jaxrs.client.WebClient.doChainedInvocation(WebClient.java:1094)
at org.apache.cxf.jaxrs.client.WebClient.doInvoke(WebClient.java:894)
at org.apache.cxf.jaxrs.client.WebClient.doInvoke(WebClient.java:865) at org.apach

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[Anonymous]

If I use tHttpRequest then I am getting the following error.
Exception in component tHttpRequest_1
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 sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(Unknown Source)
at biomarin.resttest_0_1.RestTest.tHttpRequest_1Process(RestTest.java:540)
at biomarin.resttest_0_1.RestTest.tJava_1Process(RestTest.java:793)
at biomarin.resttest_0_1.RestTest.tSetKeystore_1Process(RestTest.java:918)
at biomarin.resttest_0_1.RestTest.runJobInTOS(RestTest.java:1139)
at biomarin.resttest_0_1.RestTest.main(RestTest.java:996)
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)
... 16 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)