new keyedTimeBatchWindowTest isn't robust?

From a recent travis-ci run, the test failed. Presumably just a test timing sensitivity issue? If so can it be desensitized?

[junit] Running quarks.test.window.WindowTest
[junit] Testsuite: quarks.test.window.WindowTest
[junit] Tests run: 10, Failures: 1, Errors: 0, Skipped: 1, Time elapsed: 39.843 sec
[junit] Tests run: 10, Failures: 1, Errors: 0, Skipped: 1, Time elapsed: 39.843 sec
[junit]
[junit] Testcase: keyedTimeBatchWindowTest(quarks.test.window.WindowTest): FAILED
[junit] Values:[219, 200, 200, 200, 200, 200, 200, 200, 200, 200]
[junit] junit.framework.AssertionFailedError: Values:[219, 200, 200, 200, 200, 200, 200, 200, 200, 200]
[junit] at quarks.test.window.WindowTest.keyedTimeBatchWindowTest(WindowTest.java:422)