Impossible to use HSQLDB in server mode

[paraita]

Using the following parameters with the catalog doesn't work (relevant to any version up to the date of this issue) from a release or standalone:

spring.datasource.driverClassName=org.hsqldb.jdbc.JDBCDriver
spring.datasource.url=jdbc:hsqldb:hsql://localhost:9001/catalog
spring.datasource.username=SA
spring.datasource.password=spring.jpa.database-platform=org.hibernate.dialect.HSQLDialect

The same parameters work for the scheduling-api repo.

I have the following errors:

[2018-08-24 11:04:48,140       main WARN            o.o.p.u.JettyStarter] Failed to start context /catalog                                                                                                         
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaAutoConfig
uration.class]: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build Hibernate SessionFactory                                  
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1578)                                                               
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545)                                                                  
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)                                                                    
        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)                                                                                                 
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)                                                                             
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
        at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1054)
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:829)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:538)
        at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:444)
        at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:326)
        at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:107)
        at org.eclipse.jetty.server.handler.ContextHandler.callContextInitialized(ContextHandler.java:800)
        at org.eclipse.jetty.servlet.ServletContextHandler.callContextInitialized(ServletContextHandler.java:444)
        at org.eclipse.jetty.server.handler.ContextHandler.startContext(ContextHandler.java:791)
        at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:294)
        at org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1349)
        at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1342)
        at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:741)
...
Caused by: java.sql.SQLException: General error: database alias does not exist
        at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source)
        at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source)
        at org.hsqldb.jdbc.JDBCConnection.<init>(Unknown Source)
        at org.hsqldb.jdbc.JDBCDriver$1.run(Unknown Source)
Caused by: org.hsqldb.HsqlException: General error: database alias does not exist
        at org.hsqldb.error.Error.error(Unknown Source)
        at org.hsqldb.ClientConnection.<init>(Unknown Source)
        ... 2 more

On the other side, using MariaDB works, so the Hibernate stuff creating the database, schemas and so on seem to work properly...