How to get the exception that was thrown when a Cucumber test failed in Java?


I can perform actions on test failure by using:

@After public void afterTest(Scenario scenario) { if (scenario.isFailed()) { /*Do stuff*/ } }

However some of the actions I need to perform depend on the Exception that was thrown and in what context it was thrown. Is there a way to get the Throwable that caused the test to fail? For example in JUnit I would do this by extending TestWatcher and add a rule to my tests:

@Override protected void failed(Throwable e, Description description) { /*Do stuff with e*/ }

However the cucumber-junit iplementation does not allow the use of rules, so this solution would not work with Cucumber.

I don't think I need to explain why accessing a thrown exception on test failure would be useful, however I will still provide an Example:

My test environment is not always stable, so my tests might fail unexpectedly at any moment (there's no specific place I can try to catch the exception since it could occur at any time). When this happens I need the test to reschedule for another attempt, and log the incident so that we can get some good statistical data on the environment instability (when, how frequent, how long etc.)


You can to this by writing your own custom implementation of Formatter & Reporter interface. The empty implementation of Formatter is the NullFormatter.java which you can extend. You will need to provide implementations for the Reporter interface.

The methods which would be of interest will be the result() of the Reporter interface and possibly the done() method of Formatter. The result() has the Result object which has the exceptions.

You can look at RerunFormatter.java for clarity.

<a href="https://github.com/cucumber/cucumber-jvm/tree/master/core/src/main/java/cucumber/runtime/formatter" rel="nofollow">Github Formatter source</a>

public void result(Result result) { //Code to create logs or store to a database etc... result.getError(); result.getErrorMessage(); }

You will need to add this class(com.myimpl.CustomFormRep) to the plugin option.

plugin={"pretty", "html:report", "json:reports.json","rerun:target/rerun.txt",com.myimpl.CustomFormRep}

<a href="http://automationrhapsody.com/create-cucumber-jvm-custom-formatter/" rel="nofollow">More details on custom formatters.</a>

You can use the rerun plugin to get a list of failed scenarios to run again. Not sure about scheduling a run of failed tests, code to create a batch job or schedule one on your CI tool.


I've implemented this method using reflections. You can't access directly to steps errors (stack trace). I've created this static method which allows you to access to "stepResults" attribute and then you can iterate and get the error and do whatever you want.

@After public void afterScenario(Scenario scenario) { if (scenario.isFailed()) logError(scenario); } private static void logError(Scenario scenario) { Field field = FieldUtils.getField(((ScenarioImpl) scenario).getClass(), "stepResults", true); field.setAccessible(true); try { ArrayList<Result> results = (ArrayList<Result>) field.get(scenario); for (Result result : results) { if (result.getError() != null) LOGGER.error("Error Scenario: {}", scenario.getId(), result.getError()); } } catch (Exception e) { LOGGER.error("Error while logging error", e); } }


If you just want to massage the result being sent to the report then you can extend the CucumberJSONFormatter and override the result method like this:

<pre class="lang-java prettyprint-override">public class CustomReporter extends CucumberJSONFormatter { CustomReporter(Appendable out) { super(out); } /** * Truncate the error in the output to the testresult.json file. * @param result the error result */ @Override void result(Result result) { String errorMessage = null; if (result.error) { errorMessage = "Error: " + truncateError(result.error); } Result myResult = new Result(result.status, result.duration, errorMessage); // Log the truncated error to the JSON report super.result(myResult); } }

Then set the plugin option to:

plugin = ["com.myimpl.CustomReporter:build/reports/json/testresult.json"]


  • Does removing stop words from text affect stanford core nlp NER performance?
  • How to search for specific terms in a DTM
  • Applet size (15 megabytes) too heavy to load?
  • Disabling localization for specific apps in Django
  • How can I provide custom error messages using JAXP DocumentBuilder?
  • Angular Universal : How to resolve missing names, modules and other weird things
  • Neo4j: Enforcing schema with XSD
  • getting java.lang.ClassCastException: class java.lang.String in running a simple MapReduce Program
  • IF statement formatting best-practise, what's your style?
  • Can't get plist URL in Swift
  • Pass array from parent template to child template
  • using html data-attributes as css-variable (i.e. text-shadow)
  • How do I formally document a C# Attribute in UML?
  • Azure table store snapshot/backup capability
  • How to make JSON.NET deserialize to Microsoft Date Time?
  • android.support.v7.widget.Toolbar VectorDrawableCompat IllegalStateException when using support lib
  • How to get current document uri in XSLT?
  • SharedPreferences or SQLite Database?
  • Eloquent update method change created_at timestamp
  • custom UITableViewCell with image for highlighting
  • How do I access an unhandled exception in an MVC Error view?
  • Content-Length header not returned from Pylons response
  • Play WS (2.2.1): post/put large request
  • Google Custom Search with transparent background
  • C++ Partial template specialization - design simplification
  • NHibernate Validation Localization with S#arp Architecture
  • How to access EntityManager inside Entity class in EJB3
  • Bug in WPF DataGrid
  • vba code to select only visible cells in specific column except heading
  • Redux, normalised entities and lodash merge
  • Circular dependency while pushing http interceptor
  • Compare two NSDates in iPhone
  • Linker errors when using intrinsic function via function pointer
  • trying to dynamically update Highchart column chart but series undefined
  • how does django model after text[] in postgresql [duplicate]
  • FormattedException instead of throw new Exception(string.Format(…)) in .NET
  • embed rChart in Markdown
  • How to get NHibernate ISession to cache entity not retrieved by primary key
  • How can I use `wmic` in a Windows PE script?
  • Unable to use reactive element in my shiny app