Description of problem:
Oracle returns ORA-00932: inconsistent datatypes: expected NUMBER got BINARY  every time when passed null value to an INTEGER value.

The example code below uses Native Query:

String sql = "SELECT * FROM schema.Tabela WHERE integerColumn = ?"
Query query = getEntityManager().createNativeQuery(sql, classe);
query.setParameter(1, null);
query.getResultList(); //Error

Version-Release number of selected component (if applicable):
6.3.0

How reproducible:
Every time you set null in a query

Steps to Reproduce:
1. Download attachment testcase01451056
2. Follow instructions in READ-ME.txt file
3. Run the test case

Actual results:
It returns -00932: inconsistent datatypes: expected NUMBER got BINARY from Oeacl database

Expected results:
Native Query runs  without any errors

Additional info: