无法运行Karate Gatling场景，scala-maven-plugin编译失败求助

问题描述 #

执行命令mvn clean test-compile gatling:test运行Karate Gatling场景时出现错误：
[ERROR] Failed to execute goal net.alchim31.maven:scala-maven-plugin:4.8.1:testCompile (default) on project karate-template: Execution default of goal net.alchim31.maven:scala-maven-plugin:4.8.1:testCompile failed.: CompileFailed -> [Help 1]

项目pom.xml配置如下：

<groupId>io.karatelabs</groupId>
<artifactId>karate-template</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <java.version>11</java.version>
    <maven.compiler.version>3.11.0</maven.compiler.version>
    <maven.surefire.version>3.0.0</maven.surefire.version>
    <karate.version>1.4.1</karate.version>
    <gatling.plugin.version>4.8.2</gatling.plugin.version>
</properties>

<dependencies>
    <dependency>
        <groupId>com.intuit.karate</groupId>
        <artifactId>karate-junit5</artifactId>
        <version>${karate.version}</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>com.github.javafaker</groupId>
        <artifactId>javafaker</artifactId>
        <version>1.0.2</version>
    </dependency>
    <dependency>
        <groupId>net.masterthought</groupId>
        <artifactId>cucumber-reporting</artifactId>
        <version>5.6.1</version>
    </dependency>
    <dependency>
        <groupId>com.intuit.karate</groupId>
        <artifactId>karate-gatling</artifactId>
        <version>${karate.version}</version>
        <scope>test</scope>
    </dependency>
</dependencies>

<build>
    <testResources>
        <testResource>
            <directory>src/test/java</directory>
            <excludes>
                <exclude>**/*.java</exclude>
            </excludes>
        </testResource>
    </testResources>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>${maven.compiler.version}</version>
            <configuration>
                <encoding>UTF-8</encoding>
                <source>${java.version}</source>
                <target>${java.version}</target>
            </configuration>
        </plugin>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-surefire-plugin</artifactId>
            <version>${maven.surefire.version}</version>
            <configuration>
                <argLine>-Dfile.encoding=UTF-8</argLine>
            </configuration>
        </plugin>
        <plugin>
            <groupId>io.gatling</groupId>
            <artifactId>gatling-maven-plugin</artifactId>
            <version>${gatling.plugin.version}</version>
        <configuration>
            <simulationsFolder>src/test/java/conduitApp/performance</simulationsFolder>
            <configFolder>src/test/java/conduitApp/performance/data</configFolder>
        </configuration>
        </plugin>
        <plugin>
                <groupId>net.alchim31.maven</groupId>
                <artifactId>scala-maven-plugin</artifactId>
                <version>4.8.1</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>testCompile</goal>
                        </goals>
                        <configuration>
                            <args>
                                <arg>-Jbackend:GenBCode</arg>
                                <arg>-Jdelambdafy:method</arg>
                                <arg>-target:jvm-1.8</arg>
                                <arg>-deprecation</arg>
                                <arg>-feature</arg>
                                <arg>-unchecked</arg>
                                <arg>-language:implicitConversions</arg>
                                <arg>-language:postfixOps</arg>
                            </args>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
    </plugins>
</build>

排查与解决方案 #

• 修正JDK编译目标版本：
  scala-maven-plugin配置中指定了<arg>-target:jvm-1.8</arg>，但项目JDK版本为11，版本不匹配会导致编译失败。将该参数修改为<arg>-target:jvm-11</arg>，或直接移除该参数，让插件自动适配项目JDK版本。

• 统一插件版本：
  当前scala-maven-plugin版本（4.8.1）与gatling-maven-plugin版本（4.8.2）不一致，存在兼容风险。将scala-maven-plugin版本升级为4.8.2，保持版本统一：

<plugin>
    <groupId>net.alchim31.maven</groupId>
    <artifactId>scala-maven-plugin</artifactId>
    <version>4.8.2</version>
    <!-- 其余配置保持不变 -->
</plugin>

• 添加Scala核心依赖：
  Karate Gatling依赖Scala库，但当前pom未显式声明，导致编译时缺少依赖。在<dependencies>中添加Scala依赖：

<dependency>
    <groupId>org.scala-lang</groupId>
    <artifactId>scala-library</artifactId>
    <version>2.13.10</version> <!-- Gatling 4.x对应Scala 2.13.x系列版本 -->
    <scope>test</scope>
</dependency>

• 检查Scala仿真文件语法：
  确认src/test/java/conduitApp/performance目录下的Gatling仿真文件（.scala）无语法错误，无效的Scala代码会直接导致testCompile阶段失败。

内容的提问来源于stack exchange，提问作者Prabhuraj Kulkarni