Run SonarQube analysis using jdk7
Run SonarQube analysis using jdk7

Findbugs doesn't support jdk8 yet, see
https://jira.codehaus.org/browse/MFINDBUGS-194

glowroot/glowroot,glowroot/glowroot,glowroot/glowroot,glowroot/glowroot,trask/glowroot,trask/glowroot,trask/glowroot,trask/glowroot