From 55a239c7a61e1692eb7a49cd4430d945a4623606 Mon Sep 17 00:00:00 2001
From: Christoph Langer <clanger@openjdk.org>
Date: Thu, 17 Nov 2022 22:15:22 +0000
Subject: [PATCH] 8296733: JFR: File Read event for
 RandomAccessFile::write(byte[]) is incorrect

Backport-of: ced88a2fd9a35e0e027661ef1f3c5ea3a5fff9e0
---
 .../jfr/internal/instrument/RandomAccessFileInstrumentor.java   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/jdk.jfr/share/classes/jdk/jfr/internal/instrument/RandomAccessFileInstrumentor.java b/src/jdk.jfr/share/classes/jdk/jfr/internal/instrument/RandomAccessFileInstrumentor.java
index aa05bb3c4eb..5a82cea978d 100644
--- a/src/jdk.jfr/share/classes/jdk/jfr/internal/instrument/RandomAccessFileInstrumentor.java
+++ b/src/jdk.jfr/share/classes/jdk/jfr/internal/instrument/RandomAccessFileInstrumentor.java
@@ -158,7 +158,7 @@ final class RandomAccessFileInstrumentor {
             write(b);
             bytesWritten = b.length;
         } finally {
-            long duration = EventConfiguration.timestamp();
+            long duration = EventConfiguration.timestamp() - start;
             if (eventConfiguration.shouldCommit(duration)) {
                 FileWriteEvent.commit(start, duration, path, bytesWritten);
             }