From 46425da0ddef8eb210f2b642ead39efa744750ad Mon Sep 17 00:00:00 2001
From: Christian Haeubl <christian.haeubl@oracle.com>
Date: Thu, 6 Nov 2025 10:29:11 +0100
Subject: [PATCH] Mark boxed primitives such as java.lang.Integer as immutable.

---
 .../src/com/oracle/svm/hosted/meta/UniverseBuilder.java   | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/substratevm/src/com.oracle.svm.hosted/src/com/oracle/svm/hosted/meta/UniverseBuilder.java b/substratevm/src/com.oracle.svm.hosted/src/com/oracle/svm/hosted/meta/UniverseBuilder.java
index 2d116b943341..57f07b73006c 100644
--- a/substratevm/src/com.oracle.svm.hosted/src/com/oracle/svm/hosted/meta/UniverseBuilder.java
+++ b/substratevm/src/com.oracle.svm.hosted/src/com/oracle/svm/hosted/meta/UniverseBuilder.java
@@ -459,6 +459,14 @@ private void buildProfilingInformation() {
      * the secondary storage for monitor slots.
      */
     private static final Set<Class<?>> IMMUTABLE_TYPES = new HashSet<>(Arrays.asList(
+                    Boolean.class,
+                    Byte.class,
+                    Short.class,
+                    Character.class,
+                    Integer.class,
+                    Long.class,
+                    Float.class,
+                    Double.class,
                     String.class,
                     DynamicHub.class,
                     CEntryPointLiteral.class,