Handle null wrapper better
Handle null wrapper better

git-svn-id: https://svn.apache.org/repos/asf/jakarta/jmeter/trunk@612621 13f79535-47bb-0310-9956-ffa450edef68

Former-commit-id: 121bb8f47f79d83d19e2091e9d495faff01fa80b
etnetera/jmeter,ham1/jmeter,ham1/jmeter,benbenw/jmeter,benbenw/jmeter,ham1/jmeter,apache/jmeter,etnetera/jmeter,etnetera/jmeter,apache/jmeter,ham1/jmeter,apache/jmeter,apache/jmeter,benbenw/jmeter,benbenw/jmeter,etnetera/jmeter,ham1/jmeter,etnetera/jmeter,apache/jmeter