Eclipse provides a warning for serializable classes that don't have a serialVersionUID. Unfortunately it does not do this for abstract classes, but they must have a serialVersionUID too as I found out the hard way.

The query below finds all abstract serializable classes without a serialVersionUID:
from Class c
where c.fromSource()
and c.hasModifier("abstract")
and exists(Interface s | s.hasQualifiedName("java.io", "Serializable") and c.hasSupertype+(s))
and not c.declaresField("serialVersionUID")
select c

Thanks for the great plugin!

Kind regards,

Johan Stuyts