8347267: [macOS]: UnixOperatingSystem.c:67:40: runtime error: divisio…

…n by zero

Backport-of: 5e92a4c

src/jdk.management/macosx/native/libmanagement_ext/UnixOperatingSystem.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2011, 2025, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -63,6 +63,9 @@ Java_com_sun_management_internal_OperatingSystemImpl_getCpuLoad0
 
     jlong used_delta  = used - last_used;
     jlong total_delta = total - last_total;
+    if (total_delta == 0) {
+        return 0;
+    }
 
     jdouble cpu = (jdouble) used_delta / total_delta;