Re: An exception occurred while executing the Java class. Unsupported major.minor version 68.0

Your GraalVM is 21, maybe one of your dependencies has 24.
Your graalvm needs to process Java 24 class files, so you need a newer graal version

Best Regards
Mirko Friedenhagen
-- 
Sent with my mobile

Am 15.08.25 um 11:57 schrieb [email protected]

> I am testing graalvm espresso.
> $ java --version
> java 21.0.2 2024-01-16 LTS
> Java(TM) SE Runtime Environment Oracle GraalVM 21.0.2+13.1 (build 21.0.2+13-LTS-jvmci-23.1-b33)
> Espresso 64-Bit VM Oracle GraalVM 21.0.2+13.1 (build 21-espresso-24.2.0, mixed mode)
> 
> 
> I created a vanilla java program, which can be compiled and ran without a problem. However, when attempting to manage the project using maven (v.3.9.11), mvn throws 
> 
> An exception occurred while executing the Java class. Unsupported major.minor version 68.0. 
> 
> I know its version mismatched error. So I add related fields with version 24 such as maven.compiler.source, 
> maven.compiler.target, 
> source, 
> target 
> 
> to pom.xml as below. But the problem remains. What's the correct fields or version value to specify for pinning the jdk source and target version? Or anything that I also need to configure or miss? Thanks.
> 
> 
> <?xml version="1.0" encoding="UTF-8"?><project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">   ...     <properties>        <java.version>24</java.version>        <maven.compiler.source>24</maven.compiler.source>        <maven.compiler.target>24</maven.compiler.target>     </properties>      <dependencies>        <dependency>            <groupId>org.graalvm.espresso</groupId>            <artifactId>continuations</artifactId>            <version>24.2.0</version>        </dependency>      </dependencies>           <build>        <plugins>            <plugin>                <groupId>org.apache.maven.plugins</groupId>                <artifactId>maven-compiler-plugin</artifactId>                <version>3.14.0</version>                <configuration>                    <source>24</source>                    <target>24</target>                </configuration>            </plugin>        </plugins>    </build></project>
> 
>