@InitBinder
  public void initBinder(final WebDataBinder dataBinder) {
    dataBinder.registerCustomEditor(String[].class,
        new StringArrayPropertyEditor(StringArrayPropertyEditor.DEFAULT_SEPARATOR, false));
  }
Initializes data bindings for various HTTP request handler method parameter Java class types.

@param dataBinder the DataBinder implementation used for Web transactions.
@see org.springframework.web.bind.WebDataBinder
@see org.springframework.web.bind.annotation.InitBinder
geode-web/src/main/java/org/apache/geode/management/internal/web/controllers/AbstractCommandsController.java