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java.lang.ClassCastException: java.util.SimpleTimeZone cannot be cast to sun.util.calendar.ZoneInfo

Solution Verified - Updated 2013-12-06T07:00:14+00:00 -

Issue

We use a calendar object in an EJB and it fails to deserialize during activation of a passivated EJB.
We found the bug described in oracle bug tracker http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7017458
It was marked as back ported to Java 6 update 35: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=8001312
We use 1.6.0_43 and the issue is still happening. Is this a JBoss issue?

Environment

Red Hat JBoss Enterprise Application Platform (EAP)
- 5.x
- 6.x
Oracle Java JDK
- 6

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