git: openjdk/jdk8u-dev: 8223396: [TESTBUG] several jfr tests do not clean up files created in /tmp

[Fei Yang]

Changeset: 25693fa8
Author:    Dongbo He <dongbohe at openjdk.org>
Committer: Fei Yang <fyang at openjdk.org>
Date:      2022-03-22 06:33:31 +0000
URL:       https://git.openjdk.java.net/jdk8u-dev/commit/25693fa8c5dbdc23ead1c7d837050adb4af1b705

8223396: [TESTBUG] several jfr tests do not clean up files created in /tmp

Using test utils to create temp files and directories

Reviewed-by: andrew
Backport-of: 7d3aebccc0b90aa2ca2f656c683fa5931fd0ed3a

! jdk/test/jdk/jfr/event/io/EvilInstrument.java
! jdk/test/jdk/jfr/event/io/TestDisabledEvents.java
! jdk/test/jdk/jfr/event/io/TestFileChannelEvents.java
! jdk/test/jdk/jfr/event/io/TestFileReadOnly.java
! jdk/test/jdk/jfr/event/io/TestFileStreamEvents.java
! jdk/test/jdk/jfr/event/io/TestRandomAccessFileEvents.java
! jdk/test/jdk/jfr/event/io/TestRandomAccessFileThread.java
! jdk/test/jdk/jfr/jcmd/TestJcmdConfigure.java
! jdk/test/jdk/jfr/jmx/JmxHelper.java
! jdk/test/jdk/jfr/jvm/TestJavaEvent.java
! jdk/test/lib/jdk/test/lib/Utils.java