ISPN-3996 LocalCachePerformantConfTest is reusing the same file path for multiple tests
ISPN-3945 Update persistence tests for use with JPA Store
Test suite stability: Rest Store changes

* Always close all EmbeddedCacheManager
* Mark all methods unstable in RestStoreTest (see comment in code)
* Fixed test name
Test suite stability: Mark as unstable the following tests:

* AsyncStoreTest.testPutClearPut (ISPN-3988)
* L1StateTransferRemovesValueTest.testStateTransferWithL1InvalidationAboutToBeCommitted (ISPN-3989)
* AtomicMapAPITest.testConcurrentTx (ISPN-3990)
* RepeatableReadAtomicMapAPITest.testConcurrentTx (ISPN-3990)
* DistSyncTx1PCL1FuncTest.testBackupOwnerInvalidatesL1WhenPrimaryIsUnaware (ISPN-3991)
* ReplSyncDistributedExecutorTest.testBasicTargetRemoteDistributedCallableWithHighFutureAndLowTaskTimeout (ISPN-3992)
* IntegrationTest.testAsyncAddRemove (ISPN-3994)
* AsyncDistExtendedStatisticTest.testReplaceWithOldVal (ISPN-3995)
ISPN-3993 MultiNodeDistributedTxTest.testIndexingWorkDistribution failed as rebalance does not complete in 90 seconds