rebase
little refactoring
Merge branch 'master' of https://github.com/hazelcast/hazelcast
Merge branch 'master' of https://github.com/hazelcast/hazelcast
Merge branch 'master' of https://github.com/hazelcast/hazelcast
add write behind batch size
remove unneeded test
#2674, utf decoder fixed
utf decoding optimizations
fixes #2577
review fixes
merged others
additional optimization when reading decoding Strings
check style fixes
invariant checking enabled again
test contain description in its name
fixes #2689, implemented proper isSameRM() methods on the XaResources based on cluster group name

checkstyle fixes
Merge pull request #2711 from jerrinot/bugs/2674/utf8

Bugs/2674/utf8
Merge pull request #2645 from ahmetmircik/fix/3.3/rewriting2

Improvements of PR #2420
Fixed checkstyle problems in UTFEncoderDecoder