[x]
Posted via EE Mobile

Search, ask, and monitor your questions on the go with EE Mobile. Visit Experts Exchange from your mobile device and never be out of touch again.
Question
[x]
Attachment Details
[x]
The Solution Rating System

With so many solutions, how can you tell which solutions are most likely to help you and which ones are not? To provide you with a tool to use, we rate our solutions based on various elements that most accurately determine if a solution is a quality solution. To explain what factors affect the solution rating, here are the elements we take into consideration when formulating our solution rating.

  • The Grade of the Solution
  • The Zone Rank of the Expert Providing the Solution
  • The Number of Author and Expert Comments
  • The Number of Experts Contributing
  • The Feedback of the Community

Your Input Matters
Because of the way the system is set up, the most important variable in this equation is you. As a member of Experts Exchange, you are able to cast your vote on the quality of the solutions in regard to how complete, accurate, helpful and easy to understand each solution is. When you provide your feedback, each rating is adjusted accordingly. So, if you see a solution that has a poor rating that you think is a good solution, let us know by rating it. As you do, the rating will be adjusted and will become more accurate for other members of our site.

If you have any suggestions that you would like to make for our rating system, please ask a question in the Suggestions Zone of Community Support.

Thank you!
7.4

Commons-logging+jUnit - Bizzarre problem - may be JVM bug?

Asked by swift99 in Java Programming Language

Tags: junit, logging, commons

This is really odd.

I have some jUnit test cases.  When i run them under the JBuilder TestRunner and the text TestRunner, everything is fine.  When I run them under the Swing TestRunner, they blow up because the logger interface casting check fails.

We are using the common-logging interface and log4j.

The exact method that is failing is org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor().

The exact point of failure is this snip:

            if (!Log.class.isAssignableFrom(logClass)) {
                throw new LogConfigurationException
                    ("Class " + logClassName + " does not implement Log");
            }

logClass is org.apache.commons.logging.impl.Log4JLogger.

I have confirmed both by code review and by visually checking the instance in the debugger (during a cycle where the test fails) that logClass implements the org.apache.commons.logging.Log interface.

I have confirmed that I am using exactly the same class path for all three test runners.

I have ensured that I only have one version of Log4J and commons-logging on my box.

I get the same results with JRE 1.4.1, and 1.4.2.
[+][-]04/19/04 10:33 AM, ID: 10861735Expert Comment

At Experts Exchange, members can ask their questions to thousands of technology professionals, also known as Experts. Experts compete and collaborate to answer those questions by leaving comments like this one.

Start your 30-day free trial to view this Expert Comment or ask the Experts your question.

 
[+][-]04/19/04 10:38 AM, ID: 10861766Author Comment

Often, when Experts are collaborating with members who have asked questions, they will request additional information about the problem. Askers respond with an author comment like this one.

Start your 30-day free trial to view this Author Comment or ask the Experts your question.

 
[+][-]04/19/04 10:41 AM, ID: 10861791Expert Comment

At Experts Exchange, members can ask their questions to thousands of technology professionals, also known as Experts. Experts compete and collaborate to answer those questions by leaving comments like this one.

Start your 30-day free trial to view this Expert Comment or ask the Experts your question.

 
[+][-]04/19/04 10:45 AM, ID: 10861832Author Comment

Often, when Experts are collaborating with members who have asked questions, they will request additional information about the problem. Askers respond with an author comment like this one.

Start your 30-day free trial to view this Author Comment or ask the Experts your question.

 
[+][-]04/19/04 10:46 AM, ID: 10861840Expert Comment

At Experts Exchange, members can ask their questions to thousands of technology professionals, also known as Experts. Experts compete and collaborate to answer those questions by leaving comments like this one.

Start your 30-day free trial to view this Expert Comment or ask the Experts your question.

 
[+][-]04/19/04 10:48 AM, ID: 10861852Assisted Solution

Assisted solutions are selected by the member who asked the question as a comment that contributed to their question's solution.

Start your 30-day free trial to view this Assisted Solution or ask the Experts your question.

 
[+][-]04/19/04 10:49 AM, ID: 10861864Author Comment

Often, when Experts are collaborating with members who have asked questions, they will request additional information about the problem. Askers respond with an author comment like this one.

Start your 30-day free trial to view this Author Comment or ask the Experts your question.

 
[+][-]04/19/04 10:54 AM, ID: 10861907Expert Comment

At Experts Exchange, members can ask their questions to thousands of technology professionals, also known as Experts. Experts compete and collaborate to answer those questions by leaving comments like this one.

Start your 30-day free trial to view this Expert Comment or ask the Experts your question.

 
[+][-]04/19/04 11:06 AM, ID: 10862005Expert Comment

At Experts Exchange, members can ask their questions to thousands of technology professionals, also known as Experts. Experts compete and collaborate to answer those questions by leaving comments like this one.

Start your 30-day free trial to view this Expert Comment or ask the Experts your question.

 
[+][-]04/19/04 11:38 AM, ID: 10862320Author Comment

Often, when Experts are collaborating with members who have asked questions, they will request additional information about the problem. Askers respond with an author comment like this one.

Start your 30-day free trial to view this Author Comment or ask the Experts your question.

 
[+][-]04/19/04 11:41 AM, ID: 10862345Expert Comment

At Experts Exchange, members can ask their questions to thousands of technology professionals, also known as Experts. Experts compete and collaborate to answer those questions by leaving comments like this one.

Start your 30-day free trial to view this Expert Comment or ask the Experts your question.

 
[+][-]04/19/04 11:58 AM, ID: 10862494Author Comment

Often, when Experts are collaborating with members who have asked questions, they will request additional information about the problem. Askers respond with an author comment like this one.

Start your 30-day free trial to view this Author Comment or ask the Experts your question.

 
[+][-]04/19/04 11:59 AM, ID: 10862501Author Comment

Often, when Experts are collaborating with members who have asked questions, they will request additional information about the problem. Askers respond with an author comment like this one.

Start your 30-day free trial to view this Author Comment or ask the Experts your question.

 
[+][-]04/19/04 12:04 PM, ID: 10862548Expert Comment

At Experts Exchange, members can ask their questions to thousands of technology professionals, also known as Experts. Experts compete and collaborate to answer those questions by leaving comments like this one.

Start your 30-day free trial to view this Expert Comment or ask the Experts your question.

 
[+][-]04/19/04 12:09 PM, ID: 10862575Author Comment

Often, when Experts are collaborating with members who have asked questions, they will request additional information about the problem. Askers respond with an author comment like this one.

Start your 30-day free trial to view this Author Comment or ask the Experts your question.

 
[+][-]04/19/04 12:11 PM, ID: 10862592Expert Comment

At Experts Exchange, members can ask their questions to thousands of technology professionals, also known as Experts. Experts compete and collaborate to answer those questions by leaving comments like this one.

Start your 30-day free trial to view this Expert Comment or ask the Experts your question.

 
[+][-]04/19/04 12:32 PM, ID: 10862747Author Comment

Often, when Experts are collaborating with members who have asked questions, they will request additional information about the problem. Askers respond with an author comment like this one.

Start your 30-day free trial to view this Author Comment or ask the Experts your question.

 
[+][-]04/19/04 04:35 PM, ID: 10864559Accepted Solution

View this solution now by starting your 30-day free trial. Setting up your free trial is quick, easy, and secure. We will return you to this solution, unlocked, when you're done.

About this solution

Zone: Java Programming Language
Tags: junit, logging, commons
Sign Up Now!
Solution Provided By: objects
Participating Experts: 2
Solution Grade: A
 
[+][-]04/20/04 06:59 AM, ID: 10868911Author Comment

Often, when Experts are collaborating with members who have asked questions, they will request additional information about the problem. Askers respond with an author comment like this one.

Start your 30-day free trial to view this Author Comment or ask the Experts your question.

 
[+][-]04/20/04 07:02 AM, ID: 10868933Expert Comment

At Experts Exchange, members can ask their questions to thousands of technology professionals, also known as Experts. Experts compete and collaborate to answer those questions by leaving comments like this one.

Start your 30-day free trial to view this Expert Comment or ask the Experts your question.

 
[+][-]04/20/04 03:17 PM, ID: 10873144Expert Comment

At Experts Exchange, members can ask their questions to thousands of technology professionals, also known as Experts. Experts compete and collaborate to answer those questions by leaving comments like this one.

Start your 30-day free trial to view this Expert Comment or ask the Experts your question.

 
 
Loading Advertisement...
20091021-EE-VQP-81