Java Flight Recorder -- missing File Write/Read events

java, java-8, jmc, jvm, jvm-hotspot

Solution

File and Socket Read/Write events are only available in JDK 7u40+ and JDK 8u20+

Problem

I am analyzing java8 JVM-process with Java Mission Control + Flight Recorder. When checking the recording under I/O tab, it says: ``` "Event types 'File Write' 'File Read' are not enabled in this recording" ``` When creating the recording, in the recording wizard, last dialog Event Details..., as far as I can see, everything already has Enabled=True, but I cannot find any setting for File Write/Read... How do I enable them?

Original source