Cucumber exception: Arity Mismatch although the parameters matched in gerkins and step definitions

[lurong]

This problem appears in Linux more often than Windows.
cucumber-jvm.version=1.1.8

Feature file clause:

Then the email contents will list the failed and still-processing transaction references with the following trade details
  | Trade Details                                              |
  | 12345 - FAIL - PCHK Failed due to invalid party                    |

Step definition:

Then("""^the email contents will list the failed and still-processing transaction references with the following trade details$""") { (tradeDetails: DataTable) =>
    val expectedResult = tradeDetails.asMaps(classOf[String],classOf[String]).map(_.get("Trade Details")).toList
    //some simple assertion
    }

Error thrown:
cucumber.runtime.CucumberException: Arity mismatch: Step Definition 'ThirdPartyClearingFileDownloadSteps.scala:56' with pattern [^the email contents will list the failed and still-processing transaction references with the following trade details$] is declared with 0 parameters. However, the gherkin step has 1 arguments [Table:[[Trade Details], [12345 - FAIL - PCHK Failed due to invalid party]]].
10:14:00 Step: And the email contents will list the failed and still-processing transaction references with the following trade details
10:14:00 at cucumber.runtime.StepDefinitionMatch.arityMismatch(StepDefinitionMatch.java:100)
10:14:00 at cucumber.runtime.StepDefinitionMatch.transformedArgs(StepDefinitionMatch.java:60)
10:14:00 at cucumber.runtime.StepDefinitionMatch.runStep(StepDefinitionMatch.java:37)
10:14:00 at cucumber.runtime.Runtime.runStep(Runtime.java:298)
10:14:00 at cucumber.runtime.model.StepContainer.runStep(StepContainer.java:44)
10:14:00 at cucumber.runtime.model.StepContainer.runSteps(StepContainer.java:39)
10:14:00 at cucumber.runtime.model.CucumberScenario.run(CucumberScenario.java:48)

Investigation:

private def functionParams(f: Any) =
      f.getClass.getDeclaredMethods.filterNot(_.isBridge).head.getGenericParameterTypes

We think the .head method returns wrong function sometimes and cause the error. Unfortunately we cannot figure out how to fix this. Any help will be appreciated=)

[os97673]

This project is for Ruby implementation of cucumber, use cucumber/cucumber-jvm for cucumber-jvm issues

[brasmusson]

... and in Cucumber-JVM the issue is already fixed by cucumber/cucumber-jvm#768.

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.