Duplicate GroupConfigs in SpringDocConfigProperties. Fixes #2518.

springdoc-openapi-starter-common/src/main/java/org/springdoc/core/properties/SpringDocConfigProperties.java

@@ -25,7 +25,10 @@
 package org.springdoc.core.properties;
 
 import java.util.ArrayList;
+import java.util.HashSet;
 import java.util.List;
+import java.util.Objects;
+import java.util.Set;
 
 import io.swagger.v3.oas.models.SpecVersion;
 import org.springdoc.core.configuration.SpringDocConfiguration;
@@ -112,7 +115,7 @@ public class SpringDocConfigProperties {
 	/**
 	 * The Group configs.
 	 */
-	private List<GroupConfig> groupConfigs = new ArrayList<>();
+	private Set<GroupConfig> groupConfigs = new HashSet<>();
 
 	/**
 	 * The Auto tag classes.
@@ -781,12 +784,13 @@ public boolean isCacheDisabled() {
 		return cache.isDisabled();
 	}
 
+
 	/**
 	 * Gets group configs.
 	 *
 	 * @return the group configs
 	 */
-	public List<GroupConfig> getGroupConfigs() {
+	public Set<GroupConfig> getGroupConfigs() {
 		return groupConfigs;
 	}
 
@@ -795,7 +799,7 @@ public List<GroupConfig> getGroupConfigs() {
 	 *
 	 * @param groupConfigs the group configs
 	 */
-	public void setGroupConfigs(List<GroupConfig> groupConfigs) {
+	public void setGroupConfigs(Set<GroupConfig> groupConfigs) {
 		this.groupConfigs = groupConfigs;
 	}
 
@@ -1703,6 +1707,19 @@ public String getDisplayName() {
 		public void setDisplayName(String displayName) {
 			this.displayName = displayName;
 		}
+
+		@Override
+		public boolean equals(Object o) {
+			if (this == o) return true;
+			if (o == null || getClass() != o.getClass()) return false;
+			GroupConfig that = (GroupConfig) o;
+			return Objects.equals(group, that.group);
+		}
+
+		@Override
+		public int hashCode() {
+			return Objects.hash(group);
+		}
 	}
 
 

springdoc-openapi-starter-webmvc-api/src/test/java/test/org/springdoc/api/v30/app214/SpringDocApp214Test.java

@@ -0,0 +1,61 @@
+/*
+ *
+ *  * Copyright 2019-2023 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 test.org.springdoc.api.v30.app214;
+
+import org.junit.jupiter.api.Test;
+import org.springdoc.core.customizers.SpecPropertiesCustomizer;
+import org.springdoc.core.properties.SpringDocConfigProperties;
+import org.springdoc.core.properties.SpringDocConfigProperties.GroupConfig;
+import test.org.springdoc.api.AbstractCommonTest;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.TestPropertySource;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+/**
+ * <p>
+ * A test for {@link SpecPropertiesCustomizer}
+ */
+@SpringBootTest
+@TestPropertySource(properties = { "springdoc.group-configs[0].group=Group0",
+		"springdoc.group-configs[0].packages-to-scan=com.my-package",
+		"springdoc.group-configs[1].group=Group1",
+		"springdoc.group-configs[1].packages-to-scan=com.my-package",
+		"springdoc.group-configs[2].group=Group2",
+		"springdoc.group-configs[2].packages-to-scan=com.my-package",
+		"springdoc.group-configs[3].group=Group3",
+		"springdoc.group-configs[3].packages-to-scan=com.my-package" })
+
+public class SpringDocApp214Test extends AbstractCommonTest {
+
+	@Autowired
+	private SpringDocConfigProperties springDocConfigProperties;
+
+	@SpringBootApplication
+	static class SpringDocTestApp {}
+
+	@Test
+	public void testApp() throws Exception {
+		assertEquals(4, springDocConfigProperties.getGroupConfigs().stream().map(GroupConfig::getGroup).toList().size());
+	}
+
+}