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Eclipse Error - org/apache/log4j/net/JMSSink [message #719173]

Fri, 26 August 2011 05:02

Eclipse User

I continuosuly get the below error message in my eclipse environment

java.lang.NoClassDefFoundError: org/apache/log4j/net/JMSSink
Caused by: java.lang.ClassNotFoundException: org.apache.log4j.net.JMSSink
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
Exception in thread "main"

- I installed and deleted Visual Basic 6 for short period. And this problem started after the unistalling VB6. I remember while installing VB6 it showed a message saying VB6 will do some changes in java environment
- After uninstalling VB6, and seeing the above problem. I tried reinstalling the jdk and it did not help.
- These codes were already running before.

I don't know what else I can do. Any help will be appreciated.

Best Regards,

Re: Eclipse Error - org/apache/log4j/net/JMSSink [message #719221 is a reply to message #719173]

Fri, 26 August 2011 08:56

Eclipse User

On 08/26/2011 04:02 AM, murat sahin wrote:
> I continuosuly get the below error message in my eclipse environment
>
> java.lang.NoClassDefFoundError: org/apache/log4j/net/JMSSink
> Caused by: java.lang.ClassNotFoundException: org.apache.log4j.net.JMSSink
> at java.net.URLClassLoader$1.run(Unknown Source)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.net.URLClassLoader.findClass(Unknown Source)
> at java.lang.ClassLoader.loadClass(Unknown Source)
> at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
> at java.lang.ClassLoader.loadClass(Unknown Source)
> Exception in thread "main"
> - I installed and deleted Visual Basic 6 for short period. And this
> problem started after the unistalling VB6. I remember while installing
> VB6 it showed a message saying VB6 will do some changes in java environment
> - After uninstalling VB6, and seeing the above problem. I tried
> reinstalling the jdk and it did not help.
> - These codes were already running before.
>
> I don't know what else I can do. Any help will be appreciated.
>
> Best Regards,
>
>
looks like you are missing a jar file. You need to add the jar that
contains the missing class file to your build path.

Re: Eclipse Error - org/apache/log4j/net/JMSSink [message #722677 is a reply to message #719221]

Tue, 06 September 2011 10:08

Eclipse User

I found the jar file from internet and added into my builtpath. The result is the same. you can see the screenshots from from my project in the attachment.

But, before; I was not supposed to add this jar file into my builtpath. I don't know what happened but has cost me several weeks to solve, and there is still no solution until now.

Comments for solution will be highly appreciated.

Attachment: untitled.JPG
(Size: 53.87KB, Downloaded 403 times)

[Updated on: Tue, 06 September 2011 10:10] by Moderator

Re: Eclipse Error - org/apache/log4j/net/JMSSink [message #723049 is a reply to message #719173]

Wed, 07 September 2011 10:10

Eclipse User

I finally solved the problem.

I was using Galileo Eclipse. I used Helios and the problem got solved.
I still don't know how but, probably there was some sort of corruption in My Galileo Eclipse installation.

Now I will continue with Helios.

I had beed trying to solve this problem day and night for nearly 3 weeks.

Thanks,
Best Regards,

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