From 1fc8d6fbdfb3abd9b6fede0662f6c2efeb690f4b Mon Sep 17 00:00:00 2001
From: domkun <1139208+domkun@users.noreply.github.com>
Date: Fri, 6 Oct 2023 15:59:02 +0200
Subject: [PATCH] GH-4802: Fix setting isolation level in
 SailRepositoryConnection

---
 .../rdf4j/repository/sail/SailRepositoryConnection.java  | 1 +
 .../repository/sail/SailRepositoryConnectionTest.java    | 9 +++++++++
 2 files changed, 10 insertions(+)

diff --git a/core/repository/sail/src/main/java/org/eclipse/rdf4j/repository/sail/SailRepositoryConnection.java b/core/repository/sail/src/main/java/org/eclipse/rdf4j/repository/sail/SailRepositoryConnection.java
index b53930ff72a..5290eb89211 100644
--- a/core/repository/sail/src/main/java/org/eclipse/rdf4j/repository/sail/SailRepositoryConnection.java
+++ b/core/repository/sail/src/main/java/org/eclipse/rdf4j/repository/sail/SailRepositoryConnection.java
@@ -167,6 +167,7 @@ public void begin() throws RepositoryException {
 
 	@Override
 	public void begin(IsolationLevel level) throws RepositoryException {
+		super.begin(level);
 		try {
 			// always call receiveTransactionSettings(...) before calling begin();
 			sailConnection.setTransactionSettings(new TransactionSetting[0]);
diff --git a/core/repository/sail/src/test/java/org/eclipse/rdf4j/repository/sail/SailRepositoryConnectionTest.java b/core/repository/sail/src/test/java/org/eclipse/rdf4j/repository/sail/SailRepositoryConnectionTest.java
index d0af7a12dd2..8353b88ec65 100644
--- a/core/repository/sail/src/test/java/org/eclipse/rdf4j/repository/sail/SailRepositoryConnectionTest.java
+++ b/core/repository/sail/src/test/java/org/eclipse/rdf4j/repository/sail/SailRepositoryConnectionTest.java
@@ -10,6 +10,7 @@
  *******************************************************************************/
 package org.eclipse.rdf4j.repository.sail;
 
+import static org.assertj.core.api.Assertions.assertThat;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.anyBoolean;
 import static org.mockito.ArgumentMatchers.eq;
@@ -20,6 +21,7 @@
 import java.util.Optional;
 
 import org.eclipse.rdf4j.common.iteration.EmptyIteration;
+import org.eclipse.rdf4j.common.transaction.IsolationLevels;
 import org.eclipse.rdf4j.query.BooleanQuery;
 import org.eclipse.rdf4j.query.GraphQuery;
 import org.eclipse.rdf4j.query.Query;
@@ -148,4 +150,11 @@ public void testPrepareBooleanQuery_bypassed() throws Exception {
 		verify(sailConnection).evaluate(eq(expr), any(), any(), anyBoolean());
 	}
 
+	@Test
+	public void testIsolationLevelIsSet() throws Exception {
+		IsolationLevels isolationLevel = IsolationLevels.SERIALIZABLE;
+		subject.begin(isolationLevel);
+		assertThat(subject.getIsolationLevel()).isEqualTo(isolationLevel);
+	}
+
 }