Issue #160: fix teamcity violations

[rnveach]

#160 and the start of #161

[rnveach]

PMD violation:

[INFO] --- maven-pmd-plugin:3.7:check (default) @ checkstyle-sonar-plugin ---
[INFO] PMD Failure: org.sonar.plugins.checkstyle.CheckstyleExecutor:146 Rule:OptimizableToArrayCall Priority:3 This call to Collection.toArray() may be optimizable.

[rnveach]

teamcity is still failing with:

Zero-length array allocation (1)
146: createClassloader() Allocation of zero length array

[rnveach]

Everything is passing. I will fix commits.

[romani]

@rnveach , please review issues if they are ok to be closed.