I know very little about Java, but I have a Java question. I’ve got a Docker container for an image called amazon/aws-glue-libs. This lets me run and test AWS Glue ETL code locally on my Mac without having to use the AWS Console. It also lets me debug and single-step through the ETL code, which is fantastic. However, I hit a snag trying to use JDBC to connect to my RDS MySQL database in my sandbox. The JDBC code works if run in the AWS Glue Console, but dies with a big list of Java messages, the key one being the last line of this: