clj-webdriver "0.6.0-beta3" and com.cemerick/friend

[fern...@code54.com]

In case this helps anybody, here's what I run into after going from 0.6.0-beta2 to beta3 in my current project:

Exception in thread "main" java.lang.NoClassDefFoundError: org/w3c/dom/ElementTraversal

        at java.lang.ClassLoader.defineClass1(Native Method)

[...]

Caused by: java.lang.ClassNotFoundException: org.w3c.dom.ElementTraversal

        at java.net.URLClassLoader$1.run(URLClassLoader.java:366)

        at java.net.URLClassLoader$1.run(URLClassLoader.java:355)

[...]

Looks like the newer versions of webdriver needs a newer xml-apis.

I traced it down to a conflict with [com.cemerick/friend "0.1.4"], which transitively pulls an older xerces/xercesImpl and xml-apis.

So, my fix was to add an exclusion:

    [com.cemerick/friend "0.1.4" :exclusions [xerces/xercesImpl]]

Cheers,

Fer

[Mayank Jain]

Thanks for sharing.

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--
Regards,
Mayank.

[Mieczysław Daniel Dyba]

How did you track this down? Thanks for posting your solution. I too am using friend and added the exclusion. Now I can run my tests just fine. I ask how you tracked it down because if I ever encounter a different issue, I'd like to know your methodology. Clojure stack traces are near impossible to debug.

[Mayank Jain]

If you are using lein older then 2.2.0 you can use lein-pedantic[1].

If your lein version is 2.2.0 or above you can use 

lein deps :tree

[1] : https://github.com/xeqi/lein-pedantic

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Regards,
Mayank.

[Fernando Dobladez]

No problem. Thanks.

Don't remember exactly how, but I certainly used `lein deps :tree`, common unix commands  (like `find`, `grep`, `unzip`, etc) and google.

It was not obvious at all (to me at least). That's why I posted it here, hoping it would help others . Glad it saved you time.