Project JBeret on github: https://github.com/jberet/jsr352
JBeret bug issue track JIRA: Issue Navigator - JBoss Issue Tracker
Batch Application Samples:
WildFly forum: WildFly
Batch spec (JSR 352) project: https://java.net/projects/jbatch/lists/public/archive
Batch spec Javadoc (part of Java EE 7): http://docs.oracle.com/javaee/7/api/