From cab28e78b03b9d97a87c022e0b6256ef6a010379 Mon Sep 17 00:00:00 2001
From: egahlin <unknown>
Date: Fri, 17 Jan 2020 17:32:41 +0800
Subject: [PATCH] 8209960: -Xlog:jfr* doesn't work with the JFR Reviewed-by:
 mgronlun

---
 src/share/vm/jfr/dcmd/jfrDcmds.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/share/vm/jfr/dcmd/jfrDcmds.cpp b/src/share/vm/jfr/dcmd/jfrDcmds.cpp
index dcb9e98d1..167405e39 100644
--- a/src/share/vm/jfr/dcmd/jfrDcmds.cpp
+++ b/src/share/vm/jfr/dcmd/jfrDcmds.cpp
@@ -448,6 +448,12 @@ void JfrStartFlightRecordingDCmd::execute(DCmdSource source, TRAPS) {
       assert(element != NULL, "invariant");
       JfrJavaSupport::set_array_element(settings, element, i, CHECK);
     }
+  } else {
+    settings = JfrJavaSupport::new_string_array(1, CHECK);
+    assert(settings != NULL, "invariant");
+    jobject element = JfrJavaSupport::new_string("default", CHECK);
+    assert(element != NULL, "invariant");
+    JfrJavaSupport::set_array_element(settings, element, 0, CHECK);
   }
 
   static const char klass[] = "jdk/jfr/internal/dcmd/DCmdStart";
-- 
GitLab