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[eclipselink-users] Undetected problem mapping fields to columns

JPA provider seems to be unable to detect a potential problem when mapping
fields to columns.
Having an hierarchy of entities using a single-table strategy, and two
entities having fields with same name but different types, results that in a
future persist action, a "java.sql.SQLDataException: data exception: invalid
character value for cast" is thrown. This is because no two columns exist
for the two different fields.
I am using version "eclipselink-2.1.1.v20100817-r8050",
Springframework-3.0.4, and JUnit-4.8.2.
This problem one can reproduce!
As annexes, I provide several files including java test files, captured
console output, etc.

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