keytool -import -noprompt -trustcacerts -alias <AliasName> -file <certificate> -keystore <KeystoreFile> -storepass <Password>

In Application use following properties:
-Djavax.net.ssl.trustStore= // e.g ~/.keystore
-Djavax.net.ssl.trustStorePassword=changeit

keytool -list

shows all installed certificates