added findbugs ignore annotation

src/main/java/it/unibz/inf/isochrone/db/Database.java

@@ -617,6 +617,10 @@ public class Database {
 		return new Link(linkId, start, end, routeId);
 	}
 
+	@SuppressFBWarnings(
+		value = "UPM_UNCALLED_PRIVATE_METHOD",
+		justification = "Calling of this method is handeled by a boolean flag"
+	)
 	private Map<Node, Long> getAdjNodeCostByInQuery(final NodeConnection nConnection, final Collection<Integer> dateCodes, final long fromTime, final long toTime) {
 		final Map<Node, Long> results = new LinkedHashMap<>();
 		final Node node = nConnection.getSourceNode();
@@ -661,6 +665,10 @@ public class Database {
 		return results;
 	}
 
+	@SuppressFBWarnings(
+		value = "UPM_UNCALLED_PRIVATE_METHOD",
+		justification = "Calling of this method is handeled by a boolean flag"
+	)
 	private Map<Node, Long> getAdjNodeCostByLoops(final NodeConnection nConnection, final Collection<Integer> dateCodes, final long fromTime, final long toTime) {
 		final Node node = nConnection.getSourceNode();
 		final Set<Entry<Node, Collection<Link>>> entries = nConnection.getTargetEntries().entrySet();