Java Serverless on Steroids With fn+GraalVM Hands-On In this blog, we will build a Java serverless application using the fn project on JVM and then on GraalVM and compare the performance. by Join the DZone community and get the full member experience.Join For Free Function-as-a-Service or Serverless is the most economical way to run code and use the cloud resources to the minimum. The serverless approach runs the code when a request is received. The code boots up, executes, handles the requests, and shuts down. Thus, utilizing the cloud resources to the optimum. This provides a highly available, scalable architecture, at the most optimal costs. However, serverless architecture demands a faster boot, quicker execution, and shutdown.