[ERROR] Failed to execute goal org.springframework.boot:spring-boot-maven-plugin:1.4.1.RELEASE:run (default-cli) on project spring-boot-rest-template-sample: An exception occurred while running. null: InvocationTargetException: Error creating bean with name 'springBootRestTemplateApplication': Invocation of init method failed; nested exception is org.springframework.web.client.ResourceAccessException: I/O error on GET request for "https://localhost/api/users": sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target; nested exception is 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 -> [Help 1]