如何解决Maven 多模块中的 Kotlin 1.5.0:java.lang.UnsupportedClassVersionError
我有一个多模块 Maven 项目。我必须导入一个 maven 模块 Vader(它混合使用 Kotlin 1.5.0 和 Java 11)并将其用作我的一个模块的依赖项,它纯粹使用 java 11。代码编译得很好,但在运行时我得到这个错误:
java.lang.UnsupportedClassversionError: org/revcloud/vader/matchers/AnyMatchers has been compiled by a more recent version of the Java Runtime (class file version 59.0),this version of the Java Runtime only recognizes class file versions up to 55.0
我收到此错误的文件是我的依赖模块中的 .kt
文件。对于 java 文件,我没有收到此错误。在依赖模块 (vader) 上,我确保 jvmTarget 设置为 java 11 并且 jdkHome 指向 java 11。我什至通过运行 javap -verbose AnyMatchers.class | grep “major”
来确认,这给了我主要的 version: 55
我不知道我错过了什么,这个 59.0 来自哪里?即使我的系统只有 JDK 11,也没有安装 JDK 15。
PFB 依赖项目(vader)的 pom.xml 的 <build>
部分。 (这也有 lombok。所以我首先 delombok 进入 target/delombok 和 kotlin-maven-plugin 从这个地方获取源代码。但是在 Kotlin 类中没有使用 lombok 注释)
<build>
<sourceDirectory>${project.build.directory}/delombok</sourceDirectory>
<testSourceDirectory>${project.build.directory}/delombok-test</testSourceDirectory>
<plugins>
<plugin>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-maven-plugin</artifactId>
<version>${kotlin.version}</version>
<configuration>
<jvmTarget>${kotlin.compiler.jvmTarget}</jvmTarget>
<jdkHome>${kotlin.compiler.jdkHome}</jdkHome>
</configuration>
<executions>
<execution>
<id>compile</id>
<goals>
<goal>compile</goal>
</goals>
<configuration>
<sourceDirs>
<sourceDir>${project.build.directory}/delombok</sourceDir>
</sourceDirs>
</configuration>
</execution>
<execution>
<id>test-compile</id>
<goals>
<goal>test-compile</goal>
</goals>
<configuration>
<sourceDirs>
<sourceDir>${project.build.directory}/delombok-test</sourceDir>
</sourceDirs>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.projectlombok</groupId>
<artifactId>lombok-maven-plugin</artifactId>
<version>${lombok.version}.0</version>
<configuration>
<encoding>UTF-8</encoding>
</configuration>
<executions>
<execution>
<id>delombok</id>
<phase>generate-sources</phase>
<goals>
<goal>delombok</goal>
</goals>
<configuration>
<sourceDirectory>src/main/java</sourceDirectory>
<outputDirectory>${project.build.directory}/delombok</outputDirectory>
<addOutputDirectory>false</addOutputDirectory>
</configuration>
</execution>
<execution>
<id>delombok-test</id>
<phase>generate-test-sources</phase>
<goals>
<goal>delombok</goal>
</goals>
<configuration>
<sourceDirectory>src/test/java</sourceDirectory>
<outputDirectory>${project.build.directory}/delombok-test</outputDirectory>
<addOutputDirectory>false</addOutputDirectory>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
<configuration>
<source>${kotlin.compiler.jvmTarget}</source>
<target>${kotlin.compiler.jvmTarget}</target>
</configuration>
<executions>
<!-- Replacing default-compile as it is treated specially by maven -->
<execution>
<id>default-compile</id>
<phase>none</phase>
</execution>
<!-- Replacing default-testCompile as it is treated specially by maven -->
<execution>
<id>default-testCompile</id>
<phase>none</phase>
</execution>
<execution>
<id>java-compile</id>
<phase>compile</phase>
<goals>
<goal>compile</goal>
</goals>
</execution>
<execution>
<id>java-test-compile</id>
<phase>test-compile</phase>
<goals>
<goal>testCompile</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>3.2.0</version>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>3.0.0-M5</version>
</plugin>
</plugins>
</build>
解决方法
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