A Java Archive, or JAR file, contains all of the various components that make up a self-contained, executable Java application, deployable Java applet or, most commonly, a Java library to which any ...

Every time we deploy Sleeper, about 1.5GB of fat jars get uploaded to an S3 bucket. This happens as a separate step before we invoke the CDK to deploy the app. The CDK then points AWS to those jar ...