Convert java 11 JFR to folded format for https://github.com/brendangregg/FlameGraph
Requires java 11 jdk or higher.
mvn clean package
java -jar target/flame-graph-1.0-SNAPSHOT-shaded.jar -i some-j11-flight-recorder.flr -o output.fld
Clone https://github.com/brendangregg/FlameGraph
In FlameGraph dir
./flamegraph.pl <some path>/output.fld > flamegraph.svg
Open flamegraph.svg in your browser to explore!
Should see something like
