Answer by Abhishek for Resolving javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed Error?

For MacOS X below is the exact command worked for me where I had to try with double hypen in 'importcert' option which worked :

sudo keytool -–importcert -file /PathTo/YourCertFileDownloadedFromBrowserLockIcon.crt -keystore /Library/Java/JavaVirtualMachines/jdk1.8.0_191.jdk/Contents/Home/jre/lib/security/cacerts -alias "Cert" -storepass changeit