Connection to Analytics Cloud fails due to error unable to find valid certification path to requested target

Issue

• Analytics Cloud is not getting configured when using an access token.
• The following error appears in the logs:

  ERROR [default task-26][ExceptionMapper:79] unable to find valid certification path to requested target
  sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
      at sun.security.provider.certpath.SunCertPathBuilder.build(SunCertPathBuilder.java:148) ~[?:?]
      at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:129) ~[?:?]
      at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:297) ~[?:?]
      at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:434) ~[?:?]

Environment

• Analytics Cloud

Resolution

Check the network connectivity between the DXP instance and Analytics Cloud and the certificates in your JRE:

1. Verify Network Connectivity:
   • Ensure your DXP instance has network connectivity to Analytics Cloud. For detailed instructions on checking connectivity, refer to this article: Connecting Data Sources.
   • If your servers are behind a firewall, ensure all required network traffic for Analytics Cloud is allowed. The necessary URLs can be found in the documentation Connecting Liferay DXP to Analytics Cloud.
2. Verify Certificates:
   • Make sure your server's JRE contains the required CA root certificates. The server must be able to complete SSL handshakes with all Analytics Cloud endpoints.
   • Update the JRE's cacerts or add the required certificates to your application server's keystore.