From cce77a700141a854bafaa5ccb33db026affcf322 Mon Sep 17 00:00:00 2001
From: Thomas Stuefe <stuefe@openjdk.org>
Date: Thu, 7 Jul 2022 09:42:14 +0000
Subject: [PATCH] 8289799: Build warning in methodData.cpp memset zero-length
 parameter

Reviewed-by: jiefu, lucy
---
 src/hotspot/share/oops/methodData.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/hotspot/share/oops/methodData.cpp b/src/hotspot/share/oops/methodData.cpp
index 80dab37812d..05420fbae0a 100644
--- a/src/hotspot/share/oops/methodData.cpp
+++ b/src/hotspot/share/oops/methodData.cpp
@@ -1245,7 +1245,9 @@ void MethodData::initialize() {
   int extra_size = extra_data_count * DataLayout::compute_size_in_bytes(0);
 
   // Let's zero the space for the extra data
-  Copy::zero_to_bytes(((address)_data) + data_size, extra_size);
+  if (extra_size > 0) {
+    Copy::zero_to_bytes(((address)_data) + data_size, extra_size);
+  }
 
   // Add a cell to record information about modified arguments.
   // Set up _args_modified array after traps cells so that