The common module in jboss application server has been promoted to a standalone project. the project itself has now been and broken up into several projects.
* common-core: utility classes of jboss.
* common-logging-spi: the jboss logging interface.
* common-logging-log4: the log4j implementation of jboss.
* common-logging-jdk: the logging jdk classes of jboss.
this package ships all the components of jboss common.