In JDK 23, individual sun.misc.Unsafe methods were deprecated for removal, and that breaks the build:

[WARNING] COMPILATION WARNING :
[INFO] -------------------------------------------------------------
[WARNING] /Users/pavelrappo/repos/jcstress/jcstress-samples/src/main/java/org/openjdk/jcstress/samples/jmm/advanced/AdvancedJMM_02_MultiCopyAtomic.java:[186,19] fullFence() in sun.misc.Unsafe has been deprecated and marked for removal
[WARNING] /Users/pavelrappo/repos/jcstress/jcstress-samples/src/main/java/org/openjdk/jcstress/samples/jmm/advanced/AdvancedJMM_02_MultiCopyAtomic.java:[192,19] fullFence() in sun.misc.Unsafe has been deprecated and marked for removal
[WARNING] /Users/pavelrappo/repos/jcstress/jcstress-samples/src/main/java/org/openjdk/jcstress/samples/jmm/advanced/AdvancedJMM_02_MultiCopyAtomic.java:[199,19] loadFence() in sun.misc.Unsafe has been deprecated and marked for removal
[WARNING] /Users/pavelrappo/repos/jcstress/jcstress-samples/src/main/java/org/openjdk/jcstress/samples/jmm/advanced/AdvancedJMM_02_MultiCopyAtomic.java:[201,19] loadFence() in sun.misc.Unsafe has been deprecated and marked for removal
[WARNING] /Users/pavelrappo/repos/jcstress/jcstress-samples/src/main/java/org/openjdk/jcstress/samples/jmm/advanced/AdvancedJMM_02_MultiCopyAtomic.java:[207,19] loadFence() in sun.misc.Unsafe has been deprecated and marked for removal
[WARNING] /Users/pavelrappo/repos/jcstress/jcstress-samples/src/main/java/org/openjdk/jcstress/samples/jmm/advanced/AdvancedJMM_02_MultiCopyAtomic.java:[209,19] loadFence() in sun.misc.Unsafe has been deprecated and marked for removal
[WARNING] /Users/pavelrappo/repos/jcstress/jcstress-samples/src/main/java/org/openjdk/jcstress/samples/jmm/advanced/AdvancedJMM_02_MultiCopyAtomic.java:[252,19] fullFence() in sun.misc.Unsafe has been deprecated and marked for removal
[WARNING] /Users/pavelrappo/repos/jcstress/jcstress-samples/src/main/java/org/openjdk/jcstress/samples/jmm/advanced/AdvancedJMM_02_MultiCopyAtomic.java:[258,19] fullFence() in sun.misc.Unsafe has been deprecated and marked for removal
[WARNING] /Users/pavelrappo/repos/jcstress/jcstress-samples/src/main/java/org/openjdk/jcstress/samples/jmm/advanced/AdvancedJMM_02_MultiCopyAtomic.java:[264,19] fullFence() in sun.misc.Unsafe has been deprecated and marked for removal
[WARNING] /Users/pavelrappo/repos/jcstress/jcstress-samples/src/main/java/org/openjdk/jcstress/samples/jmm/advanced/AdvancedJMM_02_MultiCopyAtomic.java:[266,19] fullFence() in sun.misc.Unsafe has been deprecated and marked for removal
[WARNING] /Users/pavelrappo/repos/jcstress/jcstress-samples/src/main/java/org/openjdk/jcstress/samples/jmm/advanced/AdvancedJMM_02_MultiCopyAtomic.java:[268,19] loadFence() in sun.misc.Unsafe has been deprecated and marked for removal
[WARNING] /Users/pavelrappo/repos/jcstress/jcstress-samples/src/main/java/org/openjdk/jcstress/samples/jmm/advanced/AdvancedJMM_02_MultiCopyAtomic.java:[273,19] fullFence() in sun.misc.Unsafe has been deprecated and marked for removal
[WARNING] /Users/pavelrappo/repos/jcstress/jcstress-samples/src/main/java/org/openjdk/jcstress/samples/jmm/advanced/AdvancedJMM_02_MultiCopyAtomic.java:[275,19] fullFence() in sun.misc.Unsafe has been deprecated and marked for removal
[WARNING] /Users/pavelrappo/repos/jcstress/jcstress-samples/src/main/java/org/openjdk/jcstress/samples/jmm/advanced/AdvancedJMM_02_MultiCopyAtomic.java:[277,19] loadFence() in sun.misc.Unsafe has been deprecated and marked for removal
[INFO] 14 warnings
[INFO] -------------------------------------------------------------
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] /Users/pavelrappo/repos/jcstress/jcstress-samples/src/main/java/org/openjdk/jcstress/samples/jmm/advanced/AdvancedJMM_02_MultiCopyAtomic.java: warnings found and -Werror specified
[INFO] 1 error