Hi @jkempelis,
can you check whether import of your cert was successful by running
keytool -list -keystore "%JAVA_HOME%/jre/lib/security/cacerts"
If the certificate is not in there, rerun the steps suggested here: https://stackoverflow.com/questions/9619030/resolving-javax-net-ssl-sslhandshakeexception-sun-security-validator-validatore
Best,
Marten