wordnet hibernate support

Hibernate supports a wide range of DBMS but only these were tested:

MySQLcollation problem casedwords table where duplicate records may be raised if collation is not case-sensitive (does the probelm arise in read-only use ?)use derived org.hibernate.dialect.MySQLBinDialect which defines case sensitive-tables
PostgreSQLnone, worked smoothly and gracefullyno need, use standard org.hibernate.dialect.PostgreSQL
HSQLDBschema validation fails if hibernate.hbm2ddl.auto=validate error (see bug_HHH_1598)turn off schema validation (not really necessary)
or use org.hibernate.dialect.HSQLDialect2
Derbyjava.sql.Types.CLOB maps to clob(255)
(the problem is actually in DB2 dialect from which Derby dialect is inherited)
use derived org.hibernate.dialect.DerbyDialect2
SQlitesome drivers (like 3.6.20) are buggy
dialect maps java.sql.Types.CLOB to clob, but there is no clob support in JDBC driver
use modified org.hibernate.dialect.SQLite
which maps CLOB to longvarchar
use newest drivers