Portable CRaC: Jetty example application

Modified Jetty example to demonstrate the portable mode of CRaC.

How to run

1. Compile:

   mvn package

2. Checkpoint:

   # (shell 1) Launch
   $JAVA_HOME/bin/java -XX:CREngine="" -XX:CRaCCheckpointTo=cr \
     -Djdk.crac.resource-policies=res-policies.yaml \
     -jar target/example-jetty-1.0-SNAPSHOT.jar
   # (shell 2) Warm up
   curl localhost:8080
   # (shell 2) Checkpoint
   curl localhost:8080/checkpoint
   # (shell 1) Use Ctrl-C to stop the app

3. Restore:

   # (shell 1) Restore
   $JAVA_HOME/bin/java -XX:CREngine="" -XX:CRaCRestoreFrom=cr \
     -Djdk.crac.resource-policies=res-policies.yaml \
     -jar target/example-jetty-1.0-SNAPSHOT.jar
   # (shell 2) Use the restored server
   curl localhost:8080

Additional information

For more information check:

• What is CRaC?
• About the original example application: Step-by-step CRaC support for a Jetty app.