## Cucumber-jvm 1.1.3 issue with JSON formatter

I have been struggling with a weird cucumber issue today, as it took me some time to figure out what was going on, I thought I’d share this in case somebody is going down the same path.

java.lang.ArrayIndexOutOfBoundsException: -1
at java.util.ArrayList.get(ArrayList.java:324)
at gherkin.formatter.JSONFormatter.getFeatureElement(JSONFormatter.java:199)
at gherkin.formatter.JSONFormatter.before(JSONFormatter.java:147)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)


This is known issue, that has already been fixed in gherkin.

So I rebuilt gherkin locally, thinking it would solve all my problems, and I was still the exact same error, at the same line number. After changing version, deleting the jar from the Maven repository, I was still getting the same error, so it was clear that the class was being pulled from somewhere else.

It turns out the jar was being pulled from cucumber-picocontainer, which uses shade to create an über-jar with its dependencies, including gherkin. How did I figure that out? Using this piece of code:

        URL location = JSONFormatter.class.getProtectionDomain().getCodeSource().getLocation();
System.err.println(location.getPath());


The solution to the problem is therefore to rebuild gherkin, then cucumber-picocontainer, and you’re sorted.

Alternatively you can also just rebuild gherkin, and then make sure it is defined before cucumber-picocontainer:

        <dependency>
<groupId>info.cukes</groupId>
<artifactId>gherkin</artifactId>
<version>2.11.8</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>info.cukes</groupId>
<artifactId>cucumber-picocontainer</artifactId>
<version>1.1.3</version>
<scope>test</scope>
</dependency>




## Comment

1. Hi,

I encountered similar issue, however couldn’t resolve the problem. Essentially I get gherkin 2.11.8 dependency, and did a clean install.
So what exactly you mean by rebuild gherkin?

Thanks,
Harsh

· 2013-07-25 00:04 · #

2. Hi Harsh,

To build gherkin:

git clone https://github.com/cucumber/gherkin
cd gherkin/java
mvn install

Current version is 2.12.0, so you’ll need to update the cucumber-jvm pom accordingly.

· 2013-07-25 19:24 · #

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