JEXL-239:
backport of JEXL-221 checks (from JEXL3 to JEXL2)

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/jexl/branches/2.0@1807495 13f79535-47bb-0310-9956-ffa450edef68
5 files changed