topic Re: Activiti 5.12 ClassNotFoundException for log4j in Eclipse in Alfresco Archive

Activiti 5.12 ClassNotFoundException for log4j in Eclipse

sistemasmunicip — Wed, 03 Apr 2013 14:11:42 GMT

Hello, I'd like some help regarding an Exception thrown when instantiating the engine in Activiti 5.12 . Recently I updated from version 5.10 to 5.12, I'm working with Eclipse on a GXT (Sencha Ext Gwt) project. Before the update (that consisted simply in changing the Activiti libraries) the project

Re: Activiti 5.12 ClassNotFoundException for log4j in Eclipse

frederikherema1 — Wed, 03 Apr 2013 14:29:18 GMT

The slf4j-api-1.7.2 is a dependency of the engine in 5.12. Make sure you have that one in the library + a provider (see http://activiti.org/userguide/index.html#loggingConfiguration)

Re: Activiti 5.12 ClassNotFoundException for log4j in Eclipse

sistemasmunicip — Wed, 03 Apr 2013 14:33:39 GMT

Frederik, thanks for answering. I have slf4j-api-1.7.5.jar in my project classpath (I create User libraries in Eclipse) Is it ok or it should be 1.7.2 ? I'm not getting version errors at any point.
Thanks
Esteban

Re: Activiti 5.12 ClassNotFoundException for log4j in Eclipse

trademak — Thu, 04 Apr 2013 09:54:26 GMT

We use 1.7.2, but I guess 1.7.5 should also be fine. Can you look if the class is there?
Is it working now?

Best regards,

Re: Activiti 5.12 ClassNotFoundException for log4j in Eclipse

sistemasmunicip — Thu, 04 Apr 2013 10:30:33 GMT

Tijs: thanks for answering. The class is present in slf4j-api-1.7.5.jar - in fact, testing in another (non GXT) plain Java project it works, with the same libraries. I am working on finding out if I have a conflicting library somewhere in my GXT project (it's quite big).
Any ideas will be welcome, and I'll let you know any news.
Thanks
Esteban

Re: Activiti 5.12 ClassNotFoundException for log4j in Eclipse

sistemasmunicip — Thu, 04 Apr 2013 11:47:39 GMT

Update: managed to make it work by copying slf4j-api-1.7.5.jar to my project's WEB-INF/lib directory. So now it runs in hosted mode as a GXT project in eclipse. I don't know if it's the ideal solution but it works

Re: Activiti 5.12 ClassNotFoundException for log4j in Eclipse

gordonko — Thu, 21 Aug 2014 20:33:27 GMT

I am implementing standalone Java program with activiti-engine. Anyone know where is the corresponding log4j.properties file?

Re: Activiti 5.12 ClassNotFoundException for log4j in Eclipse

martin_grofcik — Mon, 25 Aug 2014 06:00:53 GMT

Hi,
https://www.google.com/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=where%20to%20place%20log4j%20properties

Regards
Martin