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A2: You should have a directory named hsperfdata_<user> in your tmp directory, where <user> is your login. (On windows you should be able to find this folder under C:\Users\myuser\AppData\Local\Temp\hsperfdata_myuser.) Make sure that the directory can be written to. Also make sure that you are using a file system that supports ACLs.

A3: Double check the JAVA_HOME/lib/missioncontrol/jmc.ini file, the line after '-vm' should not be empty, but say './' (without the quotes). If you see this behavior, please write a post in this forum, so we can get gain some more understanding of this weird issue.

Q: I cannot access the Flight Recorder!

A1: Make sure you are trying to connect to a 7u40 or later.

A2: Make sure If running with an Oracle JDK < 11, ensure you have started the JVM you are trying to start recordings on with the proper flags: -XX:+UnlockCommercialFeatures -XX:+FlightRecorder

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