Add docn on why there is an unnecessary null check
Add docn on why there is an unnecessary null check

git-svn-id: https://svn.apache.org/repos/asf/jmeter/trunk@1784825 13f79535-47bb-0310-9956-ffa450edef68

Former-commit-id: 5bb2e0748968b18332150f07e5a74f198a5f9ae3
etnetera/jmeter,etnetera/jmeter,benbenw/jmeter,apache/jmeter,benbenw/jmeter,apache/jmeter,ham1/jmeter,benbenw/jmeter,apache/jmeter,benbenw/jmeter,etnetera/jmeter,apache/jmeter,ham1/jmeter,etnetera/jmeter,apache/jmeter,etnetera/jmeter,ham1/jmeter,ham1/jmeter,ham1/jmeter