Generate a JKS (Key Store)

Create a KeyStore:

keytool -genkey -alias mydomain -keyalg RSA -keystore KeyStore.jks -keysize 2048


Generate a CSR:


keytool -certreq -alias mydomain -keystore KeyStore.jks -file mydomain.csr


Import the root & intermediate certificates into your keystore:


keytool -import -trustcacerts -alias root -file root.crt -keystore KeyStore.jks


keytool -import -trustcacerts -alias intermediate -file intermediate.crt -keystore KeyStore.jks


 Store and import your new certificate:


keytool -import -trustcacerts -alias mydomain -file mydomain.crt -keystore KeyStore.jks