If some filters are specified as JFR tools, only the last filter is effective as follows. This should enable everything like Xlog.

jfr print --events jdk.JVMInformation --events jdk.OSInformation profiling-recording4399235951575204469.jfr

jdk.OSInformation {
  startTime = 17:40:16.542
  osVersion = "Oracle Linux Server release 7.5
uname:Linux localhost.localdomain 4.1.12-112.16.4.el7uek.x86_64 #2 SMP Mon Mar 12 23:57:12 PDT 2018 x86_64
libc:glibc 2.17 NPTL 2.17