NullPointerException in transform after upgrade from 1.0.10 to 1.0.11

[mmalmeida]

After upgrading from 1.0.9 to 1.0.14 I started getting a NPE [1] that I pinpointed to the 1.0.10 to 1.0.11 upgrade.

It happens on a scenario such as this (and with a step def public void the_list_below(String moduleName, List questions) )

    Given the list for module XX:
        |question    |
        | Age         |
        | Height    |
    When foo
    Then bar

I'm attaching a test case (https://github.com/mmalmeida/cucumber-playground/tree/master/cucumber-scenarioObjects), showing the issue. What I was able to find so far was:
1 - It happens on the "given"
2 - It only happens the 2nd time that given is called (ie, if you only have one scenario with "Given the list for module something:" nothing will happen. If you have a 2nd scenario with that you'll get a NPE
3 - The issue only occurs when you have a constructor with a String argument in the transform object (ScenarioQuestion in the example provided). If one removes the one string argument constructor the NPE disappears.
4 - the issue only occurs if the @then has List argument.

[1]
java.lang.NullPointerException
at cucumber.runtime.converters.ClassWithStringConstructorConverter.fromString(ClassWithStringConstructorConverter.java:20)
at cucumber.deps.com.thoughtworks.xstream.converters.SingleValueConverterWrapper.fromString(SingleValueConverterWrapper.java:41)
at cucumber.table.TableConverter.toListOfSingleValue(TableConverter.java:109)
at cucumber.table.TableConverter.convert(TableConverter.java:60)
at cucumber.table.DataTable.convert(DataTable.java:70)
at cucumber.runtime.StepDefinitionMatch.tableArgument(StepDefinitionMatch.java:101)
at cucumber.runtime.StepDefinitionMatch.transformedArgs(StepDefinitionMatch.java:81)
at cucumber.runtime.StepDefinitionMatch.runStep(StepDefinitionMatch.java:38)
at cucumber.runtime.Runtime.runStep(Runtime.java:267)
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:36)
at cucumber.junit.ExecutionUnitRunner.run(ExecutionUnitRunner.java:76)
at org.junit.runners.Suite.runChild(Suite.java:128)
at org.junit.runners.Suite.runChild(Suite.java:24)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at org.junit.runners.Suite.runChild(Suite.java:128)
at org.junit.runners.Suite.runChild(Suite.java:24)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at cucumber.junit.FeatureRunner.runChild(FeatureRunner.java:65)
at cucumber.junit.FeatureRunner.runChild(FeatureRunner.java:20)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at cucumber.junit.FeatureRunner.run(FeatureRunner.java:72)
at cucumber.junit.Cucumber.runChild(Cucumber.java:76)
at cucumber.junit.Cucumber.runChild(Cucumber.java:36)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at cucumber.junit.Cucumber.run(Cucumber.java:81)
at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:236)
at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:134)
at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:113)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:189)
at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:165)
at org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:85)
at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:103)
at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:74)
at ✽.And a page with a list of questions:(features/questions/multipleChoice.feature:41)

[aslakhellesoy]

See answer in #396

[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.