java.lang.IllegalAccessError: tried to access field org.slf4

pankajjain15 · **Joined:** Fri Aug 15, 2008 9:09 am **Posts:** 12

Hi all

I am getting

[i] java.lang.IllegalAccessError: tried to access field org.slf4j.impl.StaticLoggerBinder.SINGLETON from class org.slf4j.LoggerFactory[/i]

error

I have added following jars in lib folder

slf4j-log4j12-1.5.8.jar
antlr-2.7.6.jar
commons-collections-3.1.jar
dom4j-1.6.1.jar
hibernate3.jar
javassist-3.9.0.GA.jar
jta-1.1.jar
slf4j-api-1.5.8.jar

Please suggest me which jar is suppose to add/remove.

sanne.grinovero · **Posted:** Sat Dec 25, 2010 7:29 pm

I would bet that you have some more jars from org.slf4j laying around somewhere on the classpath. Maybe you have some additional jars in a container? is this a standalone application or unit test, or deploying on some web or application container?

pankajjain15 · **Joined:** Fri Aug 15, 2008 9:09 am **Posts:** 12

No, i have not added more jars other than this.

I am deploying it as a web application on apache-tomcat-5.5.25.

sanne.grinovero · **Posted:** Sun Dec 26, 2010 9:26 am

This error really means you have a duplicate implementation of SLF4J, so please check other applications deployed on the same.
Use a tool like Tattletale to inspect all jars and automate duplicates find: http://jboss.org/tattletale