Stop using Constants utility in JmsActivationSpecConfig

See gh-30851

spring-jms/src/test/java/org/springframework/jms/listener/endpoint/JmsActivationSpecConfigTests.java

@@ -0,0 +1,67 @@
+/*
+ * Copyright 2002-2023 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.jms.listener.endpoint;
+
+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.assertThatIllegalArgumentException;
+import static org.assertj.core.api.Assertions.assertThatNoException;
+
+/**
+ * Tests for {@link JmsActivationSpecConfig}.
+ *
+ * @author Sam Brannen
+ * @since 6.1
+ */
+class JmsActivationSpecConfigTests {
+
+	private final JmsActivationSpecConfig specConfig = new JmsActivationSpecConfig();
+
+
+	@Test
+	void setAcknowledgeModeNameToUnsupportedValues() {
+		assertThatIllegalArgumentException().isThrownBy(() -> specConfig.setAcknowledgeModeName(null));
+		assertThatIllegalArgumentException().isThrownBy(() -> specConfig.setAcknowledgeModeName("   "));
+		assertThatIllegalArgumentException().isThrownBy(() -> specConfig.setAcknowledgeModeName("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 setAcknowledgeModeNameToAllSupportedValues() {
+		streamAcknowledgeModeConstants()
+				.map(Field::getName)
+				.forEach(name -> assertThatNoException().isThrownBy(() -> specConfig.setAcknowledgeModeName(name)));
+	}
+
+
+	private static Stream<Field> streamAcknowledgeModeConstants() {
+		return Arrays.stream(Session.class.getFields())
+				.filter(ReflectionUtils::isPublicStaticFinal);
+	}
+
+}