src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/runtime/linker/NashornBottomLinker.java

@@ -129,15 +129,20 @@
             if (desc.getOperand() != null) {
                 return getInvocation(EMPTY_PROP_GETTER, self, linkerServices, desc);
             }
             return getInvocation(EMPTY_ELEM_GETTER, self, linkerServices, desc);
         case "setProp":
-        case "setElem":
+        case "setElem": {
+            final boolean strict = NashornCallSiteDescriptor.isStrict(desc);
+            if (strict) {
+                throw typeError("cant.set.property", getArgument(linkRequest), ScriptRuntime.safeToString(self));
+            }
             if (desc.getOperand() != null) {
                 return getInvocation(EMPTY_PROP_SETTER, self, linkerServices, desc);
             }
             return getInvocation(EMPTY_ELEM_SETTER, self, linkerServices, desc);
+        }
         default:
             break;
         }
         throw new AssertionError("unknown call type " + desc);
     }