$ /opt/graalvm25/bin/java -agentlib:native-image-agent=config-output-dir=agent-output -jar target/app.jar --server.port=8083
Started GraalvmDemoApplication in 5.552 seconds (process running for 6.51)

$ curl -s localhost:8083/hello
Hello from a GraalVM native image!
$ curl -s "localhost:8083/report?format=plain"
OK via reflection on com.ankurm.graalvmdemo.report.PlainTextReport: REPORT: quarterly numbers
$ curl -s "localhost:8083/report?format=json"
OK via reflection on com.ankurm.graalvmdemo.report.JsonReport: {"report":"quarterly numbers"}

$ grep -A4 '"com.ankurm.graalvmdemo.report.PlainTextReport"' agent-output/reachability-metadata.json
{
  "type": "com.ankurm.graalvmdemo.report.PlainTextReport",
  "methods": [
    { "name": "<init>", "parameterTypes": [] }
  ]
}