What Jar – Solution to NoClassDefFoundError


As a Tester & Developer, it’s pretty common to see NoClassDefFoundError. It’s not that easy always to figureout the required jars for the application.

Whatjar comes with a lot of search capabilities to identify and download the required jars.

Whatjar is a high-performance, search engine written using Java and MySQL to index and search Java JAR contents. Its primary goal is to provide a tool to help the developer find the JAR file required when faced with a class not found exception. In addtion to act as searchable resource of open source java jars.

Whatjar is free, there is no cost to upload a jar or to search our existing database of JARS.


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Article by Venkat Reddy Chintalapudi

Authors bio is coming up shortly. Venkat Reddy Chintalapudi tagged this post with: , , , , , , , , , Read 29 articles by Venkat Reddy Chintalapudi
8 Comments Post a Comment
  1. Elifarley says:

    I have just visited WhatJar, but the site just shows an Apache error message.

    In the meantime, have you tried JarFinder?

    http://www.jarfinder.com/

    Seems to have the same goals as WhatJar.

    Cheers.
    Elifarley

  2. Shawn says:

    I have had a similar site up for some time now, you can try it at

    http://www.whatjar.co.uk

    I hope you find what you are looking for. I think the one thing I have that the others don’t is a source of opensource jars that I update every week.

    Cheers
    Shawn

  3. @ Elifarley & Shawn,

    It’s good to see other sources available & the resources shared you are useful.

  4. Vaibhavi says:

    Hi all,

    I am working for a software integrator company. My projects includes working on Java and Ruby on Rails and Ajax. I think Web Services is really cool. We also recently have to now work on REST and they are talking about mashups and Struts. Can anyone tell me if there are some good training or conferences so that me and my team members can get to speed with these technologies. Learning from books is not my cup of tea, even not when I was doing engineering ;)

    All the help that group members can provide in this regard is much appreciated.

    Thanks,
    Vaibhavi

  5. Anaz says:

    Hi Vaibhavi,

    There are several online resources available that you just google for. If any of your team like to read then quality books from wiley and oreilly cover such technologies in detail.

    I also highly recommend you could attend the upcoming Great Indian Developer Summit (developersummit dot com) that is covering Java, Agile, REST, JAX-RS, mashups, .NET, Rich Web, JPA, SOA, rich user experiences, Spring, Groovy and more. They have most of the creators of these technologies as speakers. My team is attending this summit 22-25 apr at IISc campus where we are attending the web conference on April 23 and java on April 24. We have been able to get very good discounts. Maybe all those who are interested from your group can sign up together and get a good bargain from them. what say? I also attended last year’s conference and had a really cool time.

    In Hyderabad there is Sun Tech Days with some sun speakers.

    Thanks,
    Anaz

  6. sven says:

    Related, and interesting, is the upcoming free seo software from friiso.com

  7. yourbig.ru says:

    Best article, lots of intersting things to digest. Very informative

  8. ownbig.ru says:

    I write a music blog for my audience research class. I’m new to blogging and I want them to be good! So any advice you guys could give me would be great

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