EAR simple deployment error

[Somak Dalui]

My EAR structure is like this :
|--lib
|--app.jar
|--app.war

Inside lib I have all the external libraries required. When I am deploying, I am getting this -

    
Unable to deploy EJB: mya-prepay-r3-05-04.jar from mya-prepay-r3-05-04.jar:
Class not found: org.apache.log4j.Logger
java.lang.NoClassDefFoundError: Class not found: org.apache.log4j.Logger
at weblogic.ejb20.compliance.EJBComplianceChecker.check([Ljava.lang.Object;)V(EJBComplianceChecker.java:287)
at weblogic.ejb20.compliance.EJBComplianceChecker.checkDeploymentInfo(Lweblogic.ejb20.interfaces.DeploymentInfo;)V(EJBComplianceChecker.java:232)
at weblogic.ejb20.ejbc.EJBCompiler.complianceCheckJar(Lweblogic.ejb20.interfaces.DeploymentInfo;)V(EJBCompiler.java:810)
at weblogic.ejb20.ejbc.EJBCompiler.checkCompliance(Lweblogic.ejb20.interfaces.DeploymentInfo;)V(EJBCompiler.java:766)
at weblogic.ejb20.ejbc.EJBCompiler.doCompile(Ljava.util.Collection;Lweblogic.utils.jars.VirtualJarFile;)V(EJBCompiler.java:200)
at weblogic.ejb20.ejbc.EJBCompiler.compileEJB(Lweblogic.utils.classloaders.GenericClassLoader;Lweblogic.management.configuration.EJBComponentMBean;Lweblogic.management.descriptors.toplevel.EJBDescriptorMBean;Lweblogic.utils.jars.VirtualJarFile;Lweblogic.j2ee.validation.ModuleValidationInfo;Lweblogic.ejb20.ejbc.VersionHelper;Ljava.util.Collection;)V(EJBCompiler.java:476)
at weblogic.ejb20.ejbc.EJBCompiler.compileEJB(Lweblogic.utils.classloaders.GenericClassLoader;Lweblogic.management.configuration.EJBComponentMBean;Lweblogic.utils.jars.VirtualJarFile;Lweblogic.ejb20.ejbc.VersionHelper;Ljava.util.Collection;)V(EJBCompiler.java:407)
at weblogic.ejb20.deployer.EJBDeployer.runEJBC(Lweblogic.utils.classloaders.GenericClassLoader;Lweblogic.utils.Getopt2;Lweblogic.management.configuration.EJBComponentMBean;Lweblogic.utils.jars.VirtualJarFile;Ljava.util.Collection;)V(EJBDeployer.java:493)
at weblogic.ejb20.deployer.EJBDeployer.compileJar(Ljava.io.File;Ljava.util.Collection;Lweblogic.utils.classloaders.GenericClassLoader;Lweblogic.utils.jars.VirtualJarFile;)V(EJBDeployer.java:763)
at weblogic.ejb20.deployer.EJBDeployer.compileIfNecessary(Lweblogic.utils.jars.VirtualJarFile;Lweblogic.management.configuration.EJBComponentMBean;Lweblogic.utils.classloaders.GenericClassLoader;)V(EJBDeployer.java:701)
at weblogic.ejb20.deployer.EJBDeployer.prepare(Lweblogic.utils.jars.VirtualJarFile;Ljava.lang.ClassLoader;Lweblogic.management.descriptors.toplevel.EJBDescriptorMBean;Ljavax.naming.Context;Ljava.util.Map;)V(EJBDeployer.java:1277)
at weblogic.ejb20.deployer.EJBModule.prepare(Ljava.lang.ClassLoader;)V(EJBModule.java:477)

Log4j is already there in the server lib folder, which means we dont have to supply it within the .ear - isn't that right ? After this, I even pushed the log4j.jar into my lib - but still I get this error.
Obviously I am making a simple mistake here, can you please point me out ?

I have created one domain and I am deploying the application under that.

Thanks.

[Joe Ess]

Somak Dalui wrote:
Log4j is already there in the server lib folder, which means we dont have to supply it within the .ear - isn't that right ?

No. The server lib folder is for server dependencies. You have two choices for getting classes into your container, the external CLASSPATH (not recommended) or the APP-INF/lib directory of the EAR file (this location is particular to Weblogic).
Organizing Shared Classes in a Split Development Directory

[Somak Dalui]

Thank you Joe. Setting it in the CLASSPATH worked.