From 14bdfeb08c9f34da2c3d2fdd470d7cb0bd3c9282 Mon Sep 17 00:00:00 2001
From: Xiaolong Peng <xpeng@openjdk.org>
Date: Mon, 4 May 2026 16:57:38 +0000
Subject: [PATCH] 8383772: runtime/reflect/ReflectOutOfMemoryError.java can
 fail intermittently on Shenandoah with small heaps

Reviewed-by: kdnilsen, wkemper
---
 .../hotspot/jtreg/runtime/reflect/ReflectOutOfMemoryError.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/test/hotspot/jtreg/runtime/reflect/ReflectOutOfMemoryError.java b/test/hotspot/jtreg/runtime/reflect/ReflectOutOfMemoryError.java
index 69cfade4521..42f386d3f09 100644
--- a/test/hotspot/jtreg/runtime/reflect/ReflectOutOfMemoryError.java
+++ b/test/hotspot/jtreg/runtime/reflect/ReflectOutOfMemoryError.java
@@ -38,7 +38,8 @@ public class ReflectOutOfMemoryError {
         try {
             // Repository for objects, which should be allocated:
             int index = 0;
-            for (int size = 1 << 30; size > 0 && pool == null; size >>= 1)
+            // Halving loop starting from max possible size constrained by max heap size
+            for (int size = (int)(Runtime.getRuntime().maxMemory()>>2); size > 0 && pool == null; size >>= 1)
                 try {
                     pool = new Object[size];
                 } catch (OutOfMemoryError oome) {