I use Hibernate 3 and javassisted lazy entities.
Group.hbm.xml has field "flag"
...
<class lazy="true" name="Group" polymorphism="explicit" table="groups">
...
<!-- Bitfield flag for conditions -->
<property column="flags" name="flags" type="integer"/>

The problem is - I made changes to field indirectly via method not called "setFlag"
but setSkipProcessingDta(boolean shouldSkip) in class Group which in turns call "setFlag"

public void setSkipProcessingDta(boolean skip) {
if (skip) {
setFlag(SKIP_DTA);
nextDate = SKT_DATE;
nextReviewDate = SKT_DATE;
} else {
if (isSkipDta ()) {
recalculateDates();
}
clearFlag(SKIP_DTA);
}
}


But javassist wrapper object dont reflect changes.
When I return from javassist wrapper calls - flag still has value 0.
How could I specify that this method (setSkipProcessingDta) changes field?

I'm not very sure, but I can guess the reason.

In hibernate-proxy, one-entity, two objects
(1) The proxy object whose byte code has been modified by javassist. Becareful, all the fields are not used!
(2) The real target object(If it is loaded), it's wraped by the proxy object.

Javassists overrides all the methods (include "setSkipProcessingData") to inovke the corresponding methods (include "setSkipProcessingData") of real target objects, that why the field of wrapper object will never be changed.

If it can't resolve your problem, keep touch(Note: I'm in China, time range is diff so maybe the reply will be delayed)

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Thanks for the tip. I had the same issue with hibernate-release-4.3.8.Final and I solved it by downgrading to hibernate-release-4.0.0.Final.