src/jdk/nashorn/internal/objects/NativeArguments.java

*** 123,133 ****
       * setArgument is used for named argument set.
       */
      @Override
      public void setArgument(final int key, final Object value) {
          if (namedArgs.has(key)) {
!             namedArgs.set(key, value, false);
          }
      }
  
      @Override
      public int getInt(final Object key) {
--- 123,133 ----
       * setArgument is used for named argument set.
       */
      @Override
      public void setArgument(final int key, final Object value) {
          if (namedArgs.has(key)) {
!             namedArgs = namedArgs.set(key, value, false);
          }
      }
  
      @Override
      public int getInt(final Object key) {