code: @Nonnull
    public final InternalErrorBuilder setFromWebExecutionContext (@Nonnull final ISimpleWebExecutionContext aSWEC)
    {
      setDisplayLocale (aSWEC.getDisplayLocale ());
      setRequestScope (aSWEC.getRequestScope ());
      return this;
    }
docs: Shortcut for setting display locale and request scope at once from a web
  execution context
  
  @param aSWEC
  The web execution context to use. May not be <code>null</code>.
  @return this