Hibernate Junit hsqldb - (strategy = GenerationType.AUTO) not working

Question

My Dao layer works fine with the MySql. When I try to unit test the same with the in memory db (HSQLDB) I am not able to persist data. My entity is defined as follows

public class Api {
    @Id
    @Column(name = "api_id")
    @GeneratedValue(strategy = GenerationType.AUTO)
    private int apiId;

When trying to persist the id is not auto generated. It is passed as null.

18:05:52.071 [main] DEBUG org.hibernate.SQL - insert into api (api_id, description, version) values (null, ?, ?)
18:05:52.076 [main] DEBUG o.h.e.jdbc.spi.SqlExceptionHelper - could not prepare statement [insert into api (api_id, description, name) values (null, ?, ?)]

My hibernate properties are

    Properties properties = new Properties();
    properties.setProperty(ApiConstants.HIBERNATE_DIALECT, "org.hibernate.dialect.HSQLDialect");
    properties.setProperty(ApiConstants.HIBERNATE_DRIVER_CLASS, "org.hsqldb.jdbcDriver");
    properties.setProperty(ApiConstants.HIBERNATE_CONN_URL, "jdbc:hsqldb:mem:apicloud");
    properties.setProperty(ApiConstants.HIBERNATE_CONN_USER, "sa");
    properties.setProperty(ApiConstants.HIBERNATE_CONN_PWD, "");
    properties.setProperty("hibernate.archive.autodetection", "class,hbm");
    properties.setProperty("hibernate.hbm2ddl.auto", "create-drop");
    properties.setProperty("hibernate.show_sql", "true");

Schema is created every time the unit test is triggered. Create statement is issued as follows.

18:05:51.995 [main] DEBUG org.hibernate.SQL - create table api 
(api_id integer generated by default as identity (start with 1),
description varchar(255), version varchar(255), primary key (api_id))

Let me know if I am missing something.

Answer 1

The problem got solved when I updated the HSQLDB version to 2.2.9.

https://forum.hibernate.org/viewtopic.php?f=1&t=1043498&p=2490106#p2490106

Pradeep.