Race condition in unit tests

[fxbonnet]

EsiTest.testParallelPerformance fails randomly as MockConnectionManager is not thread safe

Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 0.882 sec <<< FAILURE! - in org.esigate.extension.parallelesi.EsiTest
testParallelPerformance(org.esigate.extension.parallelesi.EsiTest) Time elapsed: 0.88 sec <<< FAILURE!
junit.framework.ComparisonFailure: null expected:<...Fragment 4 Fragment [2]> but was:<...Fragment 4 Fragment [1 Fragment 3 Fragment 4]>
at junit.framework.Assert.assertEquals(Assert.java:81)
at junit.framework.Assert.assertEquals(Assert.java:87)
at org.esigate.extension.parallelesi.EsiTest.testParallelPerformance(EsiTest.java:343)

[nricheton]

fix was merged