Springdoc v2.8.15 path matching build error with Spring Boot v3.4.4

[the-raj]

Describe the bug

Spring Boot version 3.4.4 application does not build/run with springdoc-openapi-starter-webmvc-ui version 2.8.15. It fails with the following error when running mvn clean spring-boot:run:

***************************
APPLICATION FAILED TO START
***************************

Description:

Invalid mapping pattern detected:
/swagger-ui/**/*swagger-initializer.js
           ^
No more pattern data allowed after {*...} or ** pattern element

Action:

Fix this pattern in your application or switch to the legacy parser implementation with 'spring.mvc.pathmatch.matching-strategy=ant_path_matcher'.

However, after downgrading to springdoc version 2.8.14, the application runs as expected (NOTE: setting the mentioned property to ant_path_matcher also doesn't work). This seems to be related to #3145

Sample application modules + versions

• Spring Boot version: 3.4.4
• Java version: 17
• Maven version: 3.8.1
• Springdoc-openapi
  • module: springdoc-openapi-starter-webmvc-ui
  • broken version: 2.8.15
  • working version: 2.8.14

Sample application code

pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.demoApp</groupId>
  <artifactId>repro</artifactId>
  <version>1</version>
  <properties>
    <maven.compiler.source>17</maven.compiler.source>
    <maven.compiler.target>17</maven.compiler.target>
  </properties>
  <dependencyManagement>
    <dependencies>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-dependencies</artifactId>
      <version>3.4.4</version>
      <type>pom</type>
      <scope>import</scope>
    </dependency>
    </dependencies>
  </dependencyManagement>
  <dependencies>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springdoc</groupId>
      <artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>
      <version>2.8.15</version>
    </dependency>
  </dependencies>
  <build>
    <plugins>
      <plugin>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-maven-plugin</artifactId>
      </plugin>
    </plugins>
  </build>
</project>

App.java

package com.demoapp.repro;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class App {
  public static void main(String[] args) {
    SpringApplication.run(App.class, args);
  }
}

HelloController.java

package com.demoapp.repro;

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class HelloController {
  @GetMapping("/hello")
  public String hello() {
    return "Hello, World!";
  }
}

Steps to Reproduce

1. Copy the above code into a demo folder (i.e. {demoRoot}/pom.xml, {demoRoot}/src/main/java/App.java, and {demoRoot}/src/main/java/HelloController.java)
2. Run the following terminal command mvn clean spring-boot:run
3. Check terminal output or navigate to http://localhost:8080/swagger-ui/index.html

To get a working version:

1. Change the package version in pom.xml to 2.8.14
2. Run the same mvn clean spring-boot:run command in the terminal
3. Check terminal output or navigate to http://localhost:8080/swagger-ui/index.html

Expected behavior

• Application builds and runs without maven build error