Merge pull request #1812 from jbertram/2.3.x

BZ965093 - Thread leak test failure with IBM JRE
Bug 1132196(HORNETQ-1389) - JGroupsBroadcastGroupConfiguration Serialization Problem
Merge pull request #1830 from gaohoward/2.3.x_HORNETQ-1389_2

Bug 1132196(HORNETQ-1389) - JGroupsBroadcastGroupConfiguration Serialization Problem
Revert "Bug 1132196(HORNETQ-1389) - JGroupsBroadcastGroupConfiguration Serialization Problem"

This reverts commit 82257b74846e9f23fc0af3a8940d60704410a37b.
https://bugzilla.redhat.com/show_bug.cgi?id=1141873 - leak on PagePositionImpl
Merge pull request #1839 from clebertsuconic/2.3.x

fixing leak on pagePositionImpl and reverting JGropus fix as that's breaking 2.3.x testsuite
HORNETQ-1342 - Clean up DuplicateIDCache on queue removal
https://issues.jboss.org/browse/HORNETQ-1342 - check for empty id map
HORNETQ-1342 - Clean up DuplicateIDCache for bride use-cases as well