hg: jdk-updates/jdk11u-dev: 8220657: JFR.dump does not work when filename is set

[neugens at redhat.com]

Changeset: caf1b0aebafc
Author:    egahlin
Date:      2019-08-16 16:36 +0200
URL:       https://hg.openjdk.java.net/jdk-updates/jdk11u-dev/rev/caf1b0aebafc

8220657: JFR.dump does not work when filename is set
Reviewed-by: ysuenaga

! src/jdk.jfr/share/classes/jdk/jfr/internal/PlatformRecording.java
! src/jdk.jfr/share/classes/jdk/jfr/internal/dcmd/DCmdDump.java
+ test/jdk/jdk/jfr/jcmd/TestJcmdDumpWithFileName.java