This is a JKS trust store, which was created by adding the RDS root CA (latest as of March 2021) to the built-in
cacerts
file included with OpenJDK 11. It was added by following similar instructions as those outlined for
creating a new trust store file documented
here. The keystore password is:
metabase
This is simply a copy of the "combined" CA bundle from AWS.
This is a keystore that contains only the RDS root CA. If you try to use it as the JVM-level truststore, you will probably get a lot of SSL related errors, but it should work in isolation for particular connections (ex: Oracle SSL connectivity).