Stop using Constants utility in JmsAccessor

See gh-30851

spring-jms/src/test/java/org/springframework/jms/support/JmsAccessorTests.java

@@ -16,11 +16,18 @@
 
 package org.springframework.jms.support;
 
+import java.lang.reflect.Field;
+import java.util.Arrays;
+import java.util.stream.Stream;
+
 import jakarta.jms.Session;
 import org.junit.jupiter.api.Test;
 
+import org.springframework.util.ReflectionUtils;
+
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;
+import static org.assertj.core.api.Assertions.assertThatNoException;
 import static org.mockito.BDDMockito.given;
 import static org.mockito.Mockito.mock;
 
@@ -70,6 +77,24 @@ class JmsAccessorTests {
 		assertThatIllegalArgumentException().isThrownBy(() -> accessor.setSessionAcknowledgeModeName("bogus"));
 	}
 
+	/**
+	 * This test effectively verifies that the internal 'constants' map is properly
+	 * configured for all acknowledge mode constants constants defined in
+	 * {@link jakarta.jms.Session}.
+	 */
+	@Test
+	void setSessionAcknowledgeModeNameToAllSupportedValues() {
+		streamAcknowledgeModeConstants()
+				.map(Field::getName)
+				.forEach(name -> assertThatNoException().isThrownBy(() -> accessor.setSessionAcknowledgeModeName(name)));
+	}
+
+
+	private static Stream<Field> streamAcknowledgeModeConstants() {
+		return Arrays.stream(Session.class.getFields())
+				.filter(ReflectionUtils::isPublicStaticFinal);
+	}
+
 	@Test
 	void customAcknowledgeModeIsConsideredClientAcknowledge() throws Exception {
 		Session session = mock();