findbugs: make inner class static
findbugs: remove dead code
findbugs: fix toString() on array
findbugs: replace StringBuffer by StringBuilder
https://issues.jboss.org/browse/HORNETQ-1115 - Shared subscriptions on MDBs
HORNETQ-1117 - prevention of races during XA protocol
Merge pull request #792 from clebertsuconic/master

shared subscription and preventing XA weird race
Merge pull request #795 from FranciscoBorges/master

Fix a number of findbugs warnings
javadoc
HORNETQ-720 Persist the record ID from live to backup in case of orderly shutdown.
HORNETQ-966 Compact journals before replication synchronization
Move some "description only" code from JournalStorageManager to DescribeJournal
Test fails sporadically. So if it fails, we need to assess the journal's state.
fixing test. sorry.. duh