private static boolean isMultiple(final Element element) {
    String maxOccurs = getAttribute(element, "maxOccurs");
    return null != maxOccurs && !maxOccurs.equals("1");
  }
Tests if element allows multiple.

@param element to test for multiple.
@return true if multiple allowed, otherwise false.
@since GemFire 8.1
geode-core/src/main/java/org/apache/geode/management/internal/configuration/domain/CacheElement.java