ConcurrentModificationException under PCC Mock

08:20:36 testSessionTriggeredFullDBReSync(org.opendaylight.protocol.pcep.pcc.mock.PCCTriggeredFullDBResyncTest) Time elapsed: 0.03 sec <<< ERROR!
08:20:36 java.util.ConcurrentModificationException
08:20:36 at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:901)
08:20:36 at java.util.ArrayList$Itr.next(ArrayList.java:851)
08:20:36 at org.opendaylight.protocol.pcep.pcc.mock.PCCMockCommon.checkSequequenceDBVersionSync(PCCMockCommon.java:171)
08:20:36 at org.opendaylight.protocol.pcep.pcc.mock.PCCMockCommon.checkSynchronizedSession(PCCMockCommon.java:128)
08:20:36 at org.opendaylight.protocol.pcep.pcc.mock.PCCTriggeredFullDBResyncTest.testSessionTriggeredFullDBReSync(PCCTriggeredFullDBResyncTest.java:48)
08:20:36 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
08:20:36 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
08:20:36 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
08:20:36 at java.lang.reflect.Method.invoke(Method.java:498)
08:20:36 at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
08:20:36 at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
08:20:36 at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
08:20:36 at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
08:20:36 at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
08:20:36 at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
08:20:36 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
08:20:36 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
08:20:36 at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
08:20:36 at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
08:20:36 at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
08:20:36 at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
08:20:36 at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
08:20:36 at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
08:20:36 at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:283)
08:20:36 at org.apache.maven.surefire.junit4.JUnit4Provider.executeWithRerun(JUnit4Provider.java:173)
08:20:36 at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:153)
08:20:36 at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:128)
08:20:36 at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:203)
08:20:36 at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:155)
08:20:36 at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:103)
08:20:36