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:451)
Caused: sun.security.validator.ValidatorException: PKIX path building failed
	at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:456)
	at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:323)
	at sun.security.validator.Validator.validate(Validator.java:271)
	at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:315)
	at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:223)
	at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:129)
	at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(CertificateMessage.java:638)
Caused: javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
	at sun.security.ssl.Alert.createSSLException(Alert.java:131)
	at sun.security.ssl.TransportContext.fatal(TransportContext.java:324)
	at sun.security.ssl.TransportContext.fatal(TransportContext.java:267)
	at sun.security.ssl.TransportContext.fatal(TransportContext.java:262)
	at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(CertificateMessage.java:654)
	at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(CertificateMessage.java:473)
	at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(CertificateMessage.java:369)
	at sun.security.ssl.SSLHandshake.consume(SSLHandshake.java:377)
	at sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:444)
	at sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:422)
	at sun.security.ssl.TransportContext.dispatch(TransportContext.java:182)
	at sun.security.ssl.SSLTransport.decode(SSLTransport.java:149)
	at sun.security.ssl.SSLSocketImpl.decode(SSLSocketImpl.java:1143)
	at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(SSLSocketImpl.java:1054)
	at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:394)
	at okhttp3.internal.connection.RealConnection.connectTls(RealConnection.java:336)
	at okhttp3.internal.connection.RealConnection.establishProtocol(RealConnection.java:300)
	at okhttp3.internal.connection.RealConnection.connect(RealConnection.java:185)
	at okhttp3.internal.connection.ExchangeFinder.findConnection(ExchangeFinder.java:224)
	at okhttp3.internal.connection.ExchangeFinder.findHealthyConnection(ExchangeFinder.java:108)
	at okhttp3.internal.connection.ExchangeFinder.find(ExchangeFinder.java:88)
	at okhttp3.internal.connection.Transmitter.newExchange(Transmitter.java:169)
	at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:41)
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142)
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:117)
	at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.java:94)
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142)
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:117)
	at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.java:93)
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142)
	at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.java:88)
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142)
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:117)
	at org.kohsuke.github.extras.okhttp3.ObsoleteUrlFactory$UnexpectedException.lambda$static$0(ObsoleteUrlFactory.java:1363)
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142)
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:117)
	at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:229)
	at okhttp3.RealCall.execute(RealCall.java:81)
	at org.kohsuke.github.extras.okhttp3.ObsoleteUrlFactory$OkHttpURLConnection.getResponse(ObsoleteUrlFactory.java:669)
	at org.kohsuke.github.extras.okhttp3.ObsoleteUrlFactory$OkHttpURLConnection.getResponseCode(ObsoleteUrlFactory.java:700)
	at org.kohsuke.github.extras.okhttp3.ObsoleteUrlFactory$DelegatingHttpsURLConnection.getResponseCode(ObsoleteUrlFactory.java:1062)
	at org.kohsuke.github.GitHubHttpUrlConnectionClient.getResponseInfo(GitHubHttpUrlConnectionClient.java:64)
	at org.kohsuke.github.GitHubClient.sendRequest(GitHubClient.java:394)
Caused: org.kohsuke.github.HttpException: Server returned HTTP response code: -1, message: 'null' for URL: https://repo.west.com/api/v3/rate_limit
	at org.kohsuke.github.GitHubClient.interpretApiError(GitHubClient.java:494)
	at org.kohsuke.github.GitHubClient.sendRequest(GitHubClient.java:414)
	at org.kohsuke.github.GitHubClient.getRateLimit(GitHubClient.java:232)
	at org.kohsuke.github.GitHubClient.rateLimit(GitHubClient.java:283)
	at org.kohsuke.github.GitHubRateLimitChecker.checkRateLimit(GitHubRateLimitChecker.java:122)
	at org.kohsuke.github.GitHubClient.sendRequest(GitHubClient.java:392)
	at org.kohsuke.github.GitHubClient.fetch(GitHubClient.java:129)
	at org.kohsuke.github.GitHubClient.checkApiUrlValidity(GitHubClient.java:325)
	at org.kohsuke.github.GitHub.checkApiUrlValidity(GitHub.java:1195)
	at org.jenkinsci.plugins.github_branch_source.Connector$GitHubConnection.verifyConnection(Connector.java:678)
Caused: java.io.IOException: It seems https://repo.west.com/api/v3 is unreachable
	at org.jenkinsci.plugins.github_branch_source.Connector$GitHubConnection.verifyConnection(Connector.java:681)
	at org.jenkinsci.plugins.github_branch_source.Connector$GitHubConnection.connect(Connector.java:635)
	at org.jenkinsci.plugins.github_branch_source.Connector$GitHubConnection.access$200(Connector.java:589)
	at org.jenkinsci.plugins.github_branch_source.Connector.connect(Connector.java:361)
	at org.jenkinsci.plugins.github_branch_source.GitHubSCMSource.retrieve(GitHubSCMSource.java:1582)
	at jenkins.scm.api.SCMSource.fetch(SCMSource.java:582)
	at org.jenkinsci.plugins.workflow.multibranch.SCMBinder.create(SCMBinder.java:98)
	at org.jenkinsci.plugins.workflow.job.WorkflowRun.run(WorkflowRun.java:309)
	at hudson.model.ResourceController.execute(ResourceController.java:97)
	at hudson.model.Executor.run(Executor.java:429)
Finished: FAILURE