Gatling Jenkins integration gives error

Gatling (Open-Source)
1

Hi,
I was trying to run the Gatling simulation through Jenkins. These are the steps i followed:

  1. I installed https://github.com/jenkinsci/gatling-plugin plugin in Jenkins
  2. Added the below mentioned plugin configuration in the project’s pom.xml
net.alchim31.maven scala-maven-plugin ${scala-maven-plugin.version} io.gatling gatling-maven-plugin ${gatling-plugin.version} execute
  1. Added the following dependencies also in pom.xml
io.gatling.highcharts gatling-charts-highcharts ${gatling.version} test io.gatling gatling-http ${gatling.version}

But when i try to run the build it is giving the following error:

Downloading: http:///repository/org/scala-lang/scala-compiler/2.11.8/scala-compiler-2.11.8.jar
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at io.gatling.mojo.MainWithArgsInFile.runMain(MainWithArgsInFile.java:50)
at io.gatling.mojo.MainWithArgsInFile.main(MainWithArgsInFile.java:33)
Caused by: sbt.InvalidScalaInstance: Scala instance doesn’t exist or is invalid:
version unknown, library jar: /java2/maven-repo/org/scala-lang/scala-library/2.11.8/scala-library-2.11.8.jar, compiler jar: /java2/maven-repo/org/scala-lang/scala-compiler/2.11.8/scala-compiler-2.11.8.jar
at sbt.ScalaInstance$.slowActualVersion(ScalaInstance.scala:125)
at sbt.ScalaInstance$.sbt$ScalaInstance$$actualVersion(ScalaInstance.scala:122)
at sbt.ScalaInstance$$anonfun$actualVersion$1.apply(ScalaInstance.scala:36)
at sbt.ScalaInstance$$anonfun$actualVersion$1.apply(ScalaInstance.scala:36)
at scala.Option.getOrElse(Option.scala:120)
at sbt.ScalaInstance.actualVersion$lzycompute(ScalaInstance.scala:36)
at sbt.ScalaInstance.actualVersion(ScalaInstance.scala:36)
at com.typesafe.zinc.Compiler$.compilerInterface(Compiler.scala:144)
at com.typesafe.zinc.Compiler$.create(Compiler.scala:53)
at io.gatling.compiler.ZincCompiler$delayedInit$body.apply(ZincCompiler.scala:148)
at scala.Function0$class.apply$mcV$sp(Function0.scala:40)
at scala.runtime.AbstractFunction0.apply$mcV$sp(AbstractFunction0.scala:12)
at scala.App$$anonfun$main$1.apply(App.scala:71)
at scala.App$$anonfun$main$1.apply(App.scala:71)
at scala.collection.immutable.List.foreach(List.scala:318)
at scala.collection.generic.TraversableForwarder$class.foreach(TraversableForwarder.scala:32)
at scala.App$class.main(App.scala:71)
at io.gatling.compiler.ZincCompiler$.main(ZincCompiler.scala:36)
at io.gatling.compiler.ZincCompiler.main(ZincCompiler.scala)
… 6 more
Caused by: java.lang.ClassNotFoundException: scala.tools.nsc.Properties
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:348)

What could be the reason for this error ?

regards
Krishna

2

Looks like a broken download/corrupted jar.

3

Ok. Shall check that. Do I need any Scala compiler running in Jenkins for this integration?
Thanks
Regards
Krishna

4

Jenkins is just a cron. What triggers compilation is your project build tool (maven, sbt or whatever).

5

Thanks

6

Hi Stephane,

You were right after downloading the proper jar the previous error is rectified.
Now i am getting the following error:

There is no simulation script. Please check that your scripts are in user-files/simulations
The requested class(‘Simulation.class’) can not be found in the classpath or does not extends Simulation.

Is there any specific folder structure i need to follow? The Simulation.class is available in the target folder of the Jenkins workspace.

regards
Krishna

7

Solved this, my mistake. The maven profile was in sub project so it was not executing the simulations.
Thanks!