Typical JFR command-line usage is:

$ java -XX:StartFlightRecording:filename=recording.jfr ...
$ jfr view hot-methods recording.jfr

It would be convenient if they could be combined, so when the application exits, the hot-methods view is displayed.

$ java -XX:StartFlightRecording:report-on-exit=hot-methods ...

                                          Java Methods that Executes the Most

Method Samples Percent
------------------------------------------------------------------------------------------------------- ------- -------
sun.java2d.marlin.Renderer._endRendering(int, int) 6 35.29%
sun.java2d.marlin.MarlinCache.copyAARowRLE_WithBlockFlags(int[], int[], int, int, int) 2 11.76%
sun.java2d.pipe.PixelToParallelogramConverter.fill(SunGraphics2D, Shape) 1 5.88%
java.nio.Buffer$2.reserveMemory(long, long) 1 5.88%
javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(...) 1 5.88%
sun.java2d.pipe.BufferedContext.validate(...) 1 5.88%
sun.java2d.marlin.Renderer.curveBreakIntoLinesAndAdd(double, double, Curve, double, double) 1 5.88%
sun.lwawt.LWWindowPeer.notifyMouseEvent(int, long, int, int, int, int, int, int, int, boolean, byte[]) 1 5.88%
java.awt.Container.decreaseComponentCount(Component) 1 5.88%
sun.java2d.marlin.MarlinCache.touchTile(int, int, int, int, int[]) 1 5.88%
java.util.concurrent.locks.AbstractQueuedSynchronizer.release(int) 1 5.88%
e

This simplifies usage, as users don't need to name a recording file, delete it or issue a separate view command. Multiple reports could be separated with semicolons.

$ java -XX:StartFlightRecording:report=hot-methods,gc-pauses ...