jdk/src/java.base/share/classes/jdk/experimental/value/ValueType.java

*** 66,75 ****
--- 66,76 ----
              }
          },
          NEWARRAY,
          VALOAD,
          VASTORE,
+         ARRAYLENGTH,
          MULTINEWARRAY() {
              @Override
              ValueHandleKey key(Object dims) {
                 return new ValueHandleKey(this, dims);
              }
*** 341,350 ****
--- 342,365 ----
              handleMap.put(key, result);
          }
          return result;
      }
  
+     public MethodHandle arrayLength() {
+         Class<?> arrayValueClass = arrayValueClass();
+         ValueHandleKey key = ValueHandleKind.ARRAYLENGTH.key();
+         MethodHandle result = handleMap.get(key);
+         if (result == null) {
+             result = MethodHandleBuilder.loadCode(boxLookup, mhName("arrayLength"), MethodType.methodType(int.class, arrayValueClass),
+                     C -> {
+                         C.load(0).arraylength().ireturn();
+                     });
+             handleMap.put(key, result);
+         }
+         return result;
+     }
+ 
      public MethodHandle arraySetter() {
          Class<?> arrayValueClass = arrayValueClass();
          ValueHandleKey key = ValueHandleKind.VASTORE.key();
          MethodHandle result = handleMap.get(key);
          if (result == null) {