Java Development Tools

Announcement

For appeals, questions and feedback about Oracle Forums, please email oracle-forums-moderators_us@oracle.com. Technical questions should be asked in the appropriate category. Thank you!

ClassNotFoundException: org.apache.log4j.Logger

894552Mar 7 2012 — edited Mar 7 2012

Hi,

Inside an ADF library project, I put a log4j.jar under the ‘class’ folder. I want to use that inside Employee bean. When I run it, it complains about ‘org.apache.log4j.Logger’ not found.

Employee.java:
import org.apache.log4j.Logger;
import org.apache.log4j.BasicConfigurator;

Logger log = Logger.getLogger(Employee.class);
BasicConfigurator.configure();

java.lang.ClassNotFoundException: org.apache.log4j.Logger
at weblogic.utils.classloaders.GenericClassLoader.findLocalClass(GenericClassLoader.java:297)
at weblogic.utils.classloaders.GenericClassLoader.findClass(GenericClassLoader.java:270)
at weblogic.utils.classloaders.ChangeAwareClassLoader.findClass(ChangeAwareClassLoader.java:64)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at weblogic.utils.classloaders.GenericClassLoader.loadClass(GenericClassLoader.java:179)
at weblogic.utils.classloaders.ChangeAwareClassLoader.loadClass(ChangeAwareClassLoader.java:43)
at java.lang.Class.getDeclaredFields0(Native Method)
at java.lang.Class.privateGetDeclaredFields(Class.java:2291)
at java.lang.Class.getDeclaredFields(Class.java:1743)
at weblogic.j2ee.dd.xml.BaseJ2eeAnnotationProcessor.getFields(BaseJ2eeAnnotationProcessor.java:1024)
at weblogic.j2ee.dd.xml.BaseJ2eeAnnotationProcessor.getFields(BaseJ2eeAnnotationProcessor.java:1017)
at weblogic.j2ee.dd.xml.BaseJ2eeAnnotationProcessor.processJ2eeAnnotations(BaseJ2eeAnnotationProcessor.java:98)
at weblogic.j2ee.dd.xml.J2eeAnnotationProcessor.processJ2eeAnnotations(J2eeAnnotationProcessor.java:37)
at weblogic.servlet.internal.WebAnnotationProcessorImpl.processServlets(WebAnnotationProcessorImpl.java:226)
at weblogic.servlet.internal.WebAnnotationProcessorImpl.processJ2eeAnnotations(WebAnnotationProcessorImpl.java:209)
at weblogic.servlet.internal.WebAnnotationProcessorImpl.processAnnotations(WebAnnotationProcessorImpl.java:105)
at weblogic.servlet.internal.WebAppServletContext.processAnnotations(WebAppServletContext.java:1368)

Thanks.

Locked Post

New comments cannot be posted to this locked post.

Locked on Apr 4 2012

Added on Mar 7 2012

#application-development-in-java, #jdeveloper-and-adf

3 comments

6,224 views