Issue 4200: fix flaky test DeferredSyncTest.testForceWillAdvanceLacOnlyUpToLastAcknoledgedWrite #4234
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Motivation
fix #4200
DeferredSyncTest.testForceWillAdvanceLacOnlyUpToLastAcknoledgedWrite
is flaky. The build times out since the test MAY never finishes. This PR fix it.Changes
Use
synchronized
block to operatesuspendedBookiesForForceLedgerAcks
anddeferredBookieForceLedgerResponses
Master Issue: #4200