The jcip-annotations.jar is being added to server/all/lib as a workaround to a JDK bug: see JBAS-6428. This JIRA is to consider removing the JAR once the JDKs the AS is targetting have their bug fixed.

Note that it's possible the some code will actually start using these annotations at runtime, so need to check for that. Currently they are only used at compile time (basically as documentation of the expected behavior of the class, as shown in the examples in Java Concurrency in Practice).