Exception creating count queries for Spring repositories

[heruan]

Description

Using BlazePersistenceRepositoryFactory with Spring Boot 2.0.4.RELEASE and Hibernate 5.2 integration, a repository with a count query throws an exception at app startup.

Expected behavior

No exception is thrown and the app starts with a working repository.

Actual behavior

Using BlazePersistenceRepositoryFactory with Spring Boot 2.0.4.RELEASE and Hibernate 5.2 integration, a repository with a count query such as

interface MyRepository extends Repository<MyEntity, String> {

   long countByAttribute(String attribute);

}

throws the following exception on app startup:

java.lang.IllegalArgumentException: Could not create query metamodel for method public abstract long UserRepository.countByPrimaryEmailAddress(java.lang.String)!
    at com.blazebit.persistence.spring.data.impl.repository.BlazePersistenceRepositoryFactory$CreateQueryLookupStrategy.resolveQuery(BlazePersistenceRepositoryFactory.java:190)
    at com.blazebit.persistence.spring.data.impl.repository.BlazePersistenceRepositoryFactory$CreateIfNotFoundQueryLookupStrategy.resolveQuery(BlazePersistenceRepositoryFactory.java:229)
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.lookupQuery(RepositoryFactorySupport.java:553)
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.lambda$mapMethodsToQuery$1(RepositoryFactorySupport.java:546)
Caused by: java.lang.IllegalArgumentException: DynamicSort must not be null!
    at org.springframework.util.Assert.notNull(Assert.java:193)
    at org.springframework.data.repository.query.parser.AbstractQueryCreator.createQuery(AbstractQueryCreator.java:94)
    at com.blazebit.persistence.spring.data.base.query.AbstractPartTreeBlazePersistenceQuery$CountQueryPreparer.invokeQueryCreator(AbstractPartTreeBlazePersistenceQuery.java:435)
    at com.blazebit.persistence.spring.data.base.query.AbstractPartTreeBlazePersistenceQuery$QueryPreparer.<init>(AbstractPartTreeBlazePersistenceQuery.java:224)
    at com.blazebit.persistence.spring.data.base.query.AbstractPartTreeBlazePersistenceQuery$CountQueryPreparer.<init>(AbstractPartTreeBlazePersistenceQuery.java:400)
    at com.blazebit.persistence.spring.data.base.query.AbstractPartTreeBlazePersistenceQuery.<init>(AbstractPartTreeBlazePersistenceQuery.java:82)
    at com.blazebit.persistence.spring.data.impl.query.PartTreeBlazePersistenceQuery.<init>(PartTreeBlazePersistenceQuery.java:38)
    at com.blazebit.persistence.spring.data.impl.repository.BlazePersistenceRepositoryFactory$CreateQueryLookupStrategy.resolveQuery(BlazePersistenceRepositoryFactory.java:187)
    ... 154 more

Steps to reproduce

1. Create a new Spring project and add Blaze deps.
2. Configure the app to use BlazePersistenceRepositoryFactory for repositories.
3. Create a repository interface with a count query.
4. Start the app.

Example project: https://github.com/heruan/spring-blaze

Environment

Version: 1.3.0-Alpha2
JPA-Provider: Hibernate 5.2
Spring Boot: 2.0.4.RELEASE

Worth noting that with Spring Boot 2.1.0.M1 and Hibernate 5.3 integration, the exception is not thrown.