server: libxtreemfs for Java: Fixed bug that data of a read request was not...

server: libxtreemfs for Java: Fixed bug that data of a read request was not freed and a "finalized but not freed" message was shown.

git-svn-id: https://xtreemfs.googlecode.com/svn/trunk@3556 f8528748-c2c0-11dd-ba5c-d3b7c2b3b534