From c29f2eaf605d97852ffd2367909e689974e24134 Mon Sep 17 00:00:00 2001
From: Andrea Boriero <andrea@hibernate.org>
Date: Mon, 5 Dec 2022 13:14:35 +0100
Subject: [PATCH] HHH-15744 HQL where clause parsing fails with StackOverflow
 exception

---
 .../query/hql/internal/QuerySplitter.java      | 18 ++++--------------
 1 file changed, 4 insertions(+), 14 deletions(-)

diff --git a/hibernate-core/src/main/java/org/hibernate/query/hql/internal/QuerySplitter.java b/hibernate-core/src/main/java/org/hibernate/query/hql/internal/QuerySplitter.java
index 54bae5325e..0969469cf7 100644
--- a/hibernate-core/src/main/java/org/hibernate/query/hql/internal/QuerySplitter.java
+++ b/hibernate-core/src/main/java/org/hibernate/query/hql/internal/QuerySplitter.java
@@ -850,8 +850,9 @@ public class QuerySplitter {
 
 		@Override
 		public SqmGroupedPredicate visitGroupedPredicate(SqmGroupedPredicate predicate) {
+			final SqmPredicate subPredicate = (SqmPredicate) predicate.getSubPredicate().accept( this );
 			return new SqmGroupedPredicate(
-					(SqmPredicate) predicate.accept( this ),
+					subPredicate,
 					getCreationContext().getNodeBuilder()
 			);
 		}
@@ -962,25 +963,14 @@ public class QuerySplitter {
 			);
 		}
 
-
-
 		@Override
 		public SqmPositionalParameter visitPositionalParameterExpression(SqmPositionalParameter<?> expression) {
-			return new SqmPositionalParameter(
-					expression.getPosition(),
-					expression.allowMultiValuedBinding(),
-					expression.nodeBuilder()
-			);
+			return expression;
 		}
 
 		@Override
 		public SqmNamedParameter visitNamedParameterExpression(SqmNamedParameter<?> expression) {
-			return new SqmNamedParameter(
-					expression.getName(),
-					expression.allowMultiValuedBinding(),
-					expression.getNodeType(),
-					expression.nodeBuilder()
-			);
+			return expression;
 		}
 
 		@Override