为什么加特林项目不适用于 maven？

Question

I am starting with gatling, I have a project with maven with the latest versions of gatling and scala, I have already checked all the parameterization within the ide I have changed versions and nothing works

here show my pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>org.example</groupId>
    <artifactId>gatling-poc</artifactId>
    <version>1.0-SNAPSHOT</version>

    <properties>
        <maven.compiler.source>14</maven.compiler.source>
        <maven.compiler.target>14</maven.compiler.target>
        <encoding>UTF-8</encoding>

        <gatling.version>3.8.4</gatling.version>
        <gatling-maven-plugin.version>4.2.7</gatling-maven-plugin.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>io.gatling.highcharts</groupId>
            <artifactId>gatling-charts-highcharts</artifactId>
            <version>${gatling.version}</version>
        </dependency>
    </dependencies>

    <build>
        <testSourceDirectory>src/test/scala</testSourceDirectory>
        <plugins>
            <plugin>
                <groupId>io.gatling</groupId>
                <artifactId>gatling-maven-plugin</artifactId>
                <version>${gatling-maven-plugin.version}</version>
            </plugin>
        </plugins>
    </build>
</project>

java.lang.ClassNotFoundException: io.gatling.core.check.FindCheckBuilder
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:602)
    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
    ... 25 common frames omitted
Wrapped by: java.lang.NoClassDefFoundError: io/gatling/core/check/FindCheckBuilder
    at java.base/java.lang.Class.forName0(Native Method)
    at java.base/java.lang.Class.forName(Class.java:340)
    at io.gatling.app.Selection$Selector.$anonfun$singleSimulationFromConfig$2(Selection.scala:76)
    at scala.util.Try$.apply(Try.scala:210)
    at io.gatling.app.Selection$Selector.findUserDefinedSimulationInClassloader$1(Selection.scala:76)
    at io.gatling.app.Selection$Selector.$anonfun$singleSimulationFromConfig$4(Selection.scala:91)
    at scala.Option.orElse(Option.scala:477)
    at io.gatling.app.Selection$Selector.$anonfun$singleSimulationFromConfig$3(Selection.scala:91)
    at scala.Option.flatMap(Option.scala:283)
    at io.gatling.app.Selection$Selector.singleSimulationFromConfig(Selection.scala:90)
    at io.gatling.app.Selection$Selector.$anonfun$selection$1(Selection.scala:52)
    at scala.Option.getOrElse(Option.scala:201)
    at io.gatling.app.Selection$Selector.selection(Selection.scala:44)
    at io.gatling.app.Selection$.apply(Selection.scala:36)
    at io.gatling.app.Runner.run(Runner.scala:49)
    at io.gatling.app.Gatling$.start(Gatling.scala:91)
    at io.gatling.app.Gatling$.fromArgs(Gatling.scala:53)
    at io.gatling.app.Gatling$.main(Gatling.scala:41)
    at io.gatling.app.Gatling.main(Gatling.scala)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:564)
    at io.gatling.plugin.util.MainWithArgsInFile.runMain(MainWithArgsInFile.java:53)
    at io.gatling.plugin.util.MainWithArgsInFile.main(MainWithArgsInFile.java:34)

How do I resolve this?

I hope your help, please

Answer 1

Your configuration is correct, so if Gatling's classes can't be found in the classpath, it means that the jar in your local maven cache that's supposed to contain them is corrupted.

This can happen on poor networks and sadly maven doesn't verify the checksum to make sure downloads are not corrupted.

Remove io.gatling:gatling-core from your local maven cache (by default in ~/.m2 .