play-big-app

Big Play! application (500+ java classes)

Demo application for testing Play! framework performance issues.

How to run

• git clone https://github.com/asolntsev/big-app.play.git
• cd big-app.play
• play run
• open http://localhost:9000/ in browser

How to trigger reloading classes

• Modify file app/util/Util.java and replace Object with Integer
• Refresh http://localhost:9000/ in browser
  • Expected result: Play detects the change and reloads classes
  • Actual result:
    • Play throws billion of errors trying to reload classes
    • Old classes still live in memory (Play memory leaks)

How to reproduce more errors

• Uncomment annotations in file app/jobs/JobAskingClasses.java
• play run