src/hotspot/share/oops/markWord.cpp

@@ -1,7 +1,7 @@
  /*
-  * Copyright (c) 1997, 2024, Oracle and/or its affiliates. All rights reserved.
+  * Copyright (c) 1997, 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
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.

@@ -92,5 +92,19 @@
        st->print("??");
      }
      st->print(" age=%d)", age());
    }
  }
+ 
+ markWord markWord::flat_array_prototype(LayoutKind lk) {
+   switch(lk) {
+     case ATOMIC_FLAT:
+     case NON_ATOMIC_FLAT:
+       return markWord(null_free_flat_array_pattern);
+       break;
+     case NULLABLE_ATOMIC_FLAT:
+       return markWord(nullable_flat_array_pattern);
+       break;
+     default:
+       ShouldNotReachHere();
+   }
+ }