CucumberException failed to instanciate class - maven

Question

I have this problem for 3 days now and I don't know how to solve it...
Here it is :
I am doing acceptance tests using Cucumber and Maven.
All of my tests work well and I created a jar library which I import as a dependency in the pom.xml file of my project I want to test.
Everything worked well until I just changed the name of the groupID of my jar I imported...
However, I did a "mvn install" command for my project which I want to import as a jar library before running again my project to test (and obviously I changed the dependance in my pom.xml file).
The error I am getting now is :
cucumber.runtime.CucumberException: Failed to instantiate class cucumber.steps.myClass
at cucumber.runtime.java.DefaultJavaObjectFactory.cacheNewInstance(DefaultJavaObjectFactory.java:46)
at cucumber.runtime.java.DefaultJavaObjectFactory.getInstance(DefaultJavaObjectFactory.java:32)
at cucumber.runtime.java.JavaStepDefinition.execute(JavaStepDefinition.java:38)
at cucumber.runtime.StepDefinitionMatch.runStep(StepDefinitionMatch.java:37)
at cucumber.runtime.Runtime.runStep(Runtime.java:299)
at cucumber.runtime.model.StepContainer.runStep(StepContainer.java:44)
at cucumber.runtime.model.StepContainer.runSteps(StepContainer.java:39)
at cucumber.runtime.model.CucumberScenario.run(CucumberScenario.java:44)
at cucumber.runtime.junit.ExecutionUnitRunner.run(ExecutionUnitRunner.java:91)
at cucumber.runtime.junit.FeatureRunner.runChild(FeatureRunner.java:63)
at cucumber.runtime.junit.FeatureRunner.runChild(FeatureRunner.java:18)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at cucumber.runtime.junit.FeatureRunner.run(FeatureRunner.java:70)
at cucumber.api.junit.Cucumber.runChild(Cucumber.java:93)
at cucumber.api.junit.Cucumber.runChild(Cucumber.java:37)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at cucumber.api.junit.Cucumber.run(Cucumber.java:98)
at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:367)
at org.apache.maven.surefire.junit4.JUnit4Provider.executeWithRerun(JUnit4Provider.java:274)
at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:238)
at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:161)
at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:290)
at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:242)
at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:121)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at cucumber.runtime.java.DefaultJavaObjectFactory.cacheNewInstance(DefaultJavaObjectFactory.java:40)
... 33 more
Caused by: java.lang.NoClassDefFoundError: org/jdom/Element
at myPackageImportFromJar.anotherClass.<clinit>
at cucumber.steps.myClass.<init>
... 38 more
Caused by: java.lang.ClassNotFoundException: org.jdom.Element
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 40 more
Just an information (may be my error comes from that) : I am using the jar file to read properties in the project I want to test.
If you have any idea, I would be glad to hear it...
Thank you !

Answer 1

Found out where the problem comes from :
I was using org.jdom dependency and jdom was never recognize and could never be instantiate (a bit weird but I can't explain it...). The solution I used is changing jdom dependency to jdom2 dependency. With this dependency, everything works well (for the moment).