use 'var' in ResultSetsSet

Author: gavinking

hibernate-core/src/main/java/org/hibernate/resource/jdbc/internal/ResultSetsSet.java

@@ -6,8 +6,6 @@
 
 import java.sql.ResultSet;
 import java.util.HashMap;
-import java.util.Iterator;
-import java.util.Map;
 import java.util.function.Consumer;
 
 /**
@@ -75,9 +73,9 @@ else if ( more != null ) {
 	//Any entry will do, so we take the first one if there's any.
 	private void scaleDown() {
 		if ( more != null && !more.isEmpty() ) {
-			Iterator<Map.Entry<ResultSet, ResultSet>> iterator = more.entrySet().iterator();
-			Map.Entry<ResultSet, ResultSet> entry = iterator.next();
-			final ResultSet resultSet = entry.getKey();
+			var iterator = more.entrySet().iterator();
+			var entry = iterator.next();
+			final var resultSet = entry.getKey();
 			iterator.remove();
 			first = resultSet;
 		}

hibernate-core/src/main/java/org/hibernate/resource/jdbc/internal/ResultsetsTrackingContainer.java

@@ -174,8 +174,10 @@ else if ( xref != null ) {
 	}
 
 	private boolean warnOnNotNull(ResultSetsSet existingEntry) {
-		// Keep this at DEBUG level, rather than warn.  Numerous connection pool implementations can return a
-		// proxy/wrapper around the JDBC Statement, causing excessive logging here.  See HHH-8210.
+		// Keep this at DEBUG level, rather than WARN.
+		// Connection pool implementations often return a
+		// proxy/wrapper around the JDBC Statement,
+		// causing excessive logging here. See HHH-8210.
 		if ( existingEntry == null ) {
 			CORE_LOGGER.trace( "ResultSet statement was not registered (on register)" );
 		}