affected test:
org.hibernate.test.cid.CompositeIdWithGeneratorTest.testDetachedProperty
org.hibernate.test.cid.CompositeIdWithGeneratorTest.testMerge
org.hibernate.test.cid.CompositeIdWithGeneratorTest.testDetachedId
org.hibernate.test.cid.CompositeIdWithGeneratorTest.testCompositeIdSimple
org.hibernate.test.cid.CompositeIdWithGeneratorTest.testEvict
org.hibernate.test.filter.DynamicFilterTest.testHQLSubqueryWithFilters
org.hibernate.test.filter.DynamicFilterTest.testCriteriaSubqueryWithFilters
org.hibernate.test.component.basic.ComponentTest.testComponent
org.hibernate.test.component.basic.ComponentTest.testComponentStateChangeAndDirtiness
org.hibernate.test.component.basic.ComponentTest.testCustomColumnReadAndWrite
org.hibernate.test.legacy.SQLLoaderTest.testTS
org.hibernate.test.legacy.SQLFunctionsTest.testBroken
org.hibernate.test.ops.MergeTest.testPersistThenMergeInSameTxnWithTimestamp
org.hibernate.test.stateless.StatelessSessionTest.testCreateUpdateReadDelete

There may be more tests affected, but so far I've found these tests. (although I'm not sure about some of them)

Gail, what can we do with these tests for 4.2 and overall current Hibernate behavior? Is it hard to add support for fractional seconds in mysql 5.6.4+?