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Query can't see recently persisted object

.setParameter("oid", oid); if ("-62e6083d:1612795a01c:-6e65".equals(oid)) { logger.debug
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ClassCastException in Tuple.get

.multiselect(joinDemand, rootDemandAnswer).distinct(true); cq.where( cb.equal
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[ODB1] Chapter 4 - JDO Metadata

of persistent objects for every value in the indexed field. Both equality (==, !=) and comparison ... objects for every reference in the indexed field. Only equality (==, !=) queries are supported by ... is a reference index. In that case equality queries will check reference equality (as == operator in
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[ODB1] Chapter 7 - JDOQL Queries

. Comparison operators act in JDOQL as in Java, with a few exceptions: Equality operators (==, !=) compare the identity of instances of user persistent classes (as in Java), but use the equals(...) method