Sample application to reproduce a bug when using QueryDSL to query an entity with custom types used in boolean fields.
Given an JPA entity with two boolean fields annotated, one of them annotated with a custom type @Type, when querying by those two fields providing the same boolean value (true, true or false, false) the generated query ends up using ?1 for both arguments (as they are considered a constant).
The generated query is
select user
from User user
where user.active = ?1 and user.admin = ?1 -- note the two arguments as ?1when the expected would be
select user
from User user
where user.active = ?1 and user.admin = ?2Run the tests with:
./mvnw test
By default, there are some loggers to DEBUG and TRACE to clarify the issue.