[GSS](6.2.z] Timers serialization not working with huge ids in BPM Suite

+++ This bug was initially created as a clone of Bug #1326814 +++

Description of problem:

Using huge ids for KieSessions corrupts timers serialization. Then the timer is not fired.

Version-Release number of selected component (if applicable):

It was tested with 6.2.0.Final-redhat-4 binaries.

How reproducible:

Always

Steps to Reproduce:
1. It has already been reproduced by engineering team.

— Additional comment from Amana on 2016-04-13 09:08:53 EDT —

From Mario Fusco:

I reported this issue here https://issues.jboss.org/browse/DROOLS-1119 and sent a PR fixing it https://github.com/droolsjbpm/drools/pull/732

— Additional comment from JBoss Product and Program Management on 2016-04-13 09:10:07 EDT —

Since this issue was entered in Red Hat Bugzilla, the release flag has been
set to ? to ensure that it is properly evaluated for this release.