java.lang.ClassNotFoundException: io.gatling.core.check.ExtractorCheckBuilder

Gatling (Open-Source)
1

Hi,

I’ve using the 2.0.0-SNAPSHOT version of Gatling, tried to a simulation today and I’m getting the following error:

Simulation SmokeTestSimulation started…
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at scala_maven_executions.MainHelper.runMain(MainHelper.java:164)
at scala_maven_executions.MainWithArgsInFile.main(MainWithArgsInFile.java:26)

Caused by: java.lang.NoClassDefFoundError: io/gatling/core/check/ExtractorCheckBuilder
at Scenarios$.(Scenarios.scala:11)
at Scenarios$.(Scenarios.scala)
at SmokeTestSimulation.(SmokeTestSimulation.scala:17)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at java.lang.Class.newInstance0(Class.java:357)
at java.lang.Class.newInstance(Class.java:310)
at io.gatling.core.runner.Runner.run(Runner.scala:36)
at io.gatling.app.Gatling.start(Gatling.scala:231)
at io.gatling.app.Gatling$.fromMap(Gatling.scala:52)
at io.gatling.app.Gatling$.runGatling(Gatling.scala:77)
at io.gatling.app.Gatling$.runGatling(Gatling.scala:56)
at io.gatling.app.Gatling$.main(Gatling.scala:48)
at io.gatling.app.Gatling.main(Gatling.scala)
… 6 more

Caused by: java.lang.ClassNotFoundException: io.gatling.core.check.ExtractorCheckBuilder
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
… 22 more

This has been working fine and hasn’t been touched for over a week - this breakage seems to correspond with the recent update. Any ideas?

Regards,

Sion

2

How do you work? With the bundle? With maven?

I see two possible problems:

  • you have to trigger re-compilation (binaries were updated): either touch your simulation or clean the target directory
  • if you use maven, we’re having a hard time properly generating maven metadata so that maven can properly detect that snapshots have been updated. If so, try removing gatling artifacts from your local maven repository.
3

Hi Stéphane,

I’m using maven, removing the gatling artifacts from my local repo and also doing a ‘mvn clean’ did the job. Thanks for your help!

Regards,

Sion

4

Glad to hear.
We’re still working on this metadata hell…