The deploy process added log4j.jar at /lib for any plugins

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 6.0.2 RC, 6.0.11 EE, 6.1.0 CE RC1
• Fix Version/s: 6.0.12 EE, 6.1.0 CE RC1
• Component/s: Frontend Infrastructure
• Labels: None
• Environment: 6.0, at revision: 51611
• Liferay Contributor's Agreement:
  Accept

The deploy process added log4j.jar for any plugins. This will cause errors in tomcat like following.

log4j:ERROR A "org.apache.log4j.ConsoleAppender" object is not assignable to a "org.apache.log4j.Appender" variable.
log4j:ERROR The class "org.apache.log4j.Appender" was loaded by
log4j:ERROR [WebappClassLoader
delegate: false
repositories:
/WEB-INF/classes/
----------> Parent Classloader:
org.apache.catalina.loader.StandardClassLoader@1ac1fe4
] whereas object of type
log4j:ERROR "org.apache.log4j.ConsoleAppender" was loaded by [WebappClassLoader
delegate: false
repositories:
/WEB-INF/classes/
----------> Parent Classloader:
org.apache.catalina.loader.StandardClassLoader@1ac1fe4
].
log4j:ERROR Could not instantiate appender named "CONSOLE".

How to fix it? change the deployment process.