Example to use swagger-maven-plugin in a multi-module java project

pom.xml

<build>
  <plugins>
    <pluginManagement>
      <!-- swagger.json - generate API documentation -->
      <plugin>
        <groupId>com.github.kongchen</groupId>
        <artifactId>swagger-maven-plugin</artifactId>
        <version>${swagger-maven-plugin-version}</version>
        <configuration>
          <apiSources>
            <apiSource>
              <schemes>http,https</schemes>
              <basePath>/api</basePath>
              <info>
                <title>${project.name}</title>
                <termsOfService>Please read on https://example.com/terms-of-service</termsOfService>
                <description>${project.description}. More on: http://example.com/${project.artifactId}</description>
                <contact>
                  <name>Example LLC
                  </name>
                  <url>https://example.com</url>
                  <email>contact@example.com</email>
                </contact>
                <license>
                  <name>Apache License v2.0</name>
                  <url>https://www.apache.org/licenses/LICENSE-2.0.html</url>
                </license>
                <version>${project.version}</version>
              </info>
              <swaggerDirectory>${project.build.directory}/swagger-ui</swaggerDirectory>
              <!--
                  Do not use: swaggerFileName, as it will be used as classifier. 
                  In a multi-module project will have different classifier for different APIs
                -->
              <outputFormats>json</outputFormats>
              <attachSwaggerArtifact>true</attachSwaggerArtifact>
            </apiSource>
          </apiSources>
        </configuration>
        <executions>
          <execution>
            <phase>compile</phase>
            <goals>
              <goal>generate</goal>
            </goals>
          </execution>
        </executions>
      </plugin>
    </plugins>
  </pluginManagement>
</build>