Removing the resources tags fixed the issue. Swagger UI now shows the Project name, version and description instead of placeholders.

Commented out the resources tags in pom.xml as below.

<build>
    <!--<resources>
        <resource>
            <directory>src/main/resources</directory>
            <filtering>true</filtering>
        </resource>
    </resources>-->
    <plugins>
        <plugin>
            <artifactId>maven-enforcer-plugin</artifactId>
        </plugin>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
        <plugin>
            <groupId>com.googlecode.maven-download-plugin</groupId>
            <artifactId>download-maven-plugin</artifactId>
        </plugin>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-pmd-plugin</artifactId>
        </plugin>
        <plugin>
            <groupId>org.jacoco</groupId>
            <artifactId>jacoco-maven-plugin</artifactId>
        </plugin>
    </plugins>
</build>

Thanks.