external-software/github_OpenIdentityPlatform_OpenDJ.git

			@@ -46,7 +46,10 @@
			private final ConcurrentMap<Integer, CSN> serverIdToCSN = new ConcurrentSkipListMap<>();
			/**
			* Whether the state has been saved to persistent storage. It starts at true,
			* and moves to false when an update is made to the current object.
			* and moves to false when a change is actually made to the current object -
			* once that change is visible in {@link #serverIdToCSN}, never before, so
			* that a reader cannot see the flag cleared for a change its own view of the
			* map does not hold yet.
			*/
			private volatile boolean saved = true;

			@@ -58,12 +61,18 @@

			/**
			* Empty the ServerState.
			* After this call the Server State will be in the same state
			* as if it was just created.
			* After this call the Server State no longer holds any CSN. A state which
			* held one is marked as not saved: dropping it is a change like any other,
			* which persistent storage has yet to be told about. A state which held
			* nothing is left alone, the way an update which changes nothing is.
			*/
			public void clear()
			{
			serverIdToCSN.clear();
			if (!serverIdToCSN.isEmpty())
			{
			serverIdToCSN.clear();
			saved = false;
			}
			}

			/**
			@@ -82,8 +91,6 @@
			return false;
			}

			saved = false;

			final int serverId = csn.getServerId();
			while (true)
			{
			@@ -92,6 +99,7 @@
			{
			if (serverIdToCSN.putIfAbsent(serverId, csn) == null)
			{
			saved = false;
			return true;
			}
			// oops, a concurrent modification happened, run the same process again
			@@ -101,6 +109,7 @@
			{
			if (serverIdToCSN.replace(serverId, existingCSN, csn))
			{
			saved = false;
			return true;
			}
			// oops, a concurrent modification happened, run the same process again