Typos And advise using last JDK8 version
Typos
And advise using last JDK8 version

git-svn-id: https://svn.apache.org/repos/asf/jmeter/trunk@1808638 13f79535-47bb-0310-9956-ffa450edef68

Former-commit-id: c3f43100223bc9ce098ae32df44ae61716859870
benbenw/jmeter,apache/jmeter,apache/jmeter,apache/jmeter,benbenw/jmeter,etnetera/jmeter,etnetera/jmeter,apache/jmeter,ham1/jmeter,ham1/jmeter,etnetera/jmeter,benbenw/jmeter,etnetera/jmeter,ham1/jmeter,ham1/jmeter,etnetera/jmeter,benbenw/jmeter,ham1/jmeter,apache/jmeter