Linkage error with geb

Question

I'm attempting to just try a basic geb script, unfortunately I seem to be having some serious issues getting this off the ground. I'm using IntelliJ, I've downloaded the geb-core jar from http://mvnrepository.com/artifact/org.gebish/geb-core/0.9.1, as well as its 4 dependencies. I've added them to my IntelliJ project under the project structure as dependencies, when I go to run my basic script ``` import geb.Browser Browser.drive { go "http://google.com/ncr" } ``` I get a very nasty looking error ``` Caught: java.lang.LinkageError: loader constraint violation in interface itable initialization: when resolving method "com.gargoylesoftware.htmlunit.html.DomNode.getAttributes()Lorg/w3c/dom/NamedNodeMap;" the class loader (instance of org/codehaus/groovy/tools/RootLoader) of the current class, com/gargoylesoftware/htmlunit/html/DomNode, and the class loader (instance of <bootloader>) for interface org/w3c/dom/Node have different Class objects for the type org/w3c/dom/NamedNodeMap used in…

Accepted Answer

I would suggest using Gradle that will save you from manually setting up a project and resolving Geb dependencies. The simplest way to do it using gradle is:

Install GVM Tool: `http://gvmtool.net/`

Install Gradle via gvm: `gvm install gradle 1.12`

Create a `build.gradle` file:

```
apply plugin: 'idea'
apply plugin: 'groovy'

repositories {
    mavenCentral()
}

dependencies {
    compile 'org.gebish:geb-core:0.9.3'
    compile 'org.codehaus.groovy:groovy-all:2.3.3'
    compile 'org.seleniumhq.selenium:selenium-firefox-driver:2.42.2'
}
```

Create a `src/main/groovy` directory.

Run `gradle idea`.

Open the generated idea project file.

Drop your Geb script inside of the `src/main/groovy` directory and run it.

Linkage error with geb

Solution

Problem