12:08:38,365 INFO [MainDeployer] Starting deployment of package: file:/C:/jboss-3.2.3RC1/server/default/nukes/nukes-empresas.ear
12:08:38,375 INFO [EARDeployer] Init J2EE application: file:/C:/jboss-3.2.3RC1/server/default/nukes/nukes-empresas.ear
12:08:38,656 WARN [NestedThrowable] Duplicate throwable nesting of same base type: class org.jboss.deployment.DeploymentException is assignable from: class org.jboss.deployment.DeploymentException
12:08:38,656 ERROR [MainDeployer] could not create deployment: file:/C:/jboss-3.2.3RC1/server/default/tmp/deploy/tmp46372nukes-empresas.ear-contents/nukes-empresas.sar
org.jboss.deployment.DeploymentException: create operation failed for package file:/C:/jboss-3.2.3RC1/server/default/tmp/deploy/tmp46372nukes-empresas.ear-contents/nukes-empresas.sar; - nested throwable: (org.jboss.deployment.DeploymentException: Class org.jboss.mx.server.MBeanServerImpl can not access a member of class org.jboss.nukes.addons.modules.empresas.EmpresasModule with modifiers "public"; - nested throwable: (java.lang.IllegalAccessException: Class org.jboss.mx.server.MBeanServerImpl can not access a member of class org.jboss.nukes.addons.modules.empresas.EmpresasModule with modifiers "public"))

I believe it has something to do with the section in bold.

Thanks in advance,
Pedro Martins