Spring Boot 2.5 with JDK 17 - maven surefire doesn't execute existing tests-CodePudding

When changing the Spring Boot 2.2 application to 2.5.5 with JDK 17, the Surefire test plugin does not start any existing tests. This is the message:

[INFO]  T E S T S
[INFO] -------------------------------------------------------
[INFO] 
[INFO] Results:
[INFO] 
[INFO] Tests run: 0, Failures: 0, Errors: 0, Skipped: 0

Why does it not start any existing tests? The names of the tests are *Test.java.

I saw similar behavior when explicitly adding the Surefire plugin with a version higher then 2.19. Spring boot test starter will have a newer surefire plugin.

Maven version is 3.6.3. On the path is jdk17.1.0.

<java.version>17</java.version>
<maven.compiler.source>17</maven.compiler.source>
<maven.compiler.target>17</maven.compiler.target>

I looked at similar questions and saw that the path of the test folder should be below 'src'. Yes, it is.

In the folder it is the same:

Below both folders is a 'java' folder.

The Surefire is not explicitly in the pom.xml because it is in the spring-boot-test starter.

CodePudding user response：

what kind of test exist in you project ? integration test or/and unit test? Can you give more detail on your context?

Anyway, from version 2.4.0 of spring-boot, JUnit 5’s Vintage Engine Removed from spring-boot-starter-test.

It is said in the 2.4.0 release note page https://github.com/spring-projects/spring-boot/wiki/Spring-Boot-2.4-Release-Notes :

    If you upgrade to Spring Boot 2.4 and see test compilation errors for JUnit 
classes such as org.junit.Test, this may be because JUnit 5’s vintage engine has been 
removed from spring-boot-starter-test. The vintage engine allows tests written with 
JUnit 4 to be run by JUnit 5. If you do not want to migrate your tests to JUnit 5 and 
wish to continue using JUnit 4, add a dependency on the Vintage Engine, as shown in 
the following example for Maven:

<dependency>
    <groupId>org.junit.vintage</groupId>
    <artifactId>junit-vintage-engine</artifactId>
    <scope>test</scope>
    <exclusions>
        <exclusion>
            <groupId>org.hamcrest</groupId>
            <artifactId>hamcrest-core</artifactId>
        </exclusion>
    </exclusions>
</dependency>