title: HSQLDB object name already exists
body: <p>I'm trying to set up an HSQL database for testing, using version 2.2.9, Hibernate 3.6.9, and Spring 3.1.2. We had been using a local postgresql database but are making a switch for testing. I have 40-50 test classes with 200+ tests in total. Each test class works fine if run individually from eclipse. When I use Maven to compile and test everything I have test errors. At some point it seems to be trying to run my init.sql script again and create tables again. I'm getting this as my final cause: </p>
  
  <pre><code>Caused by: org.hsqldb.HsqlException: object name already exists: DUAL_ASSET_ASSETID_SEQ
  at org.hsqldb.error.Error.error(Unknown Source)
  at org.hsqldb.error.Error.error(Unknown Source)
  at org.hsqldb.SchemaObjectSet.checkAdd(Unknown Source)
  at org.hsqldb.SchemaManager.checkSchemaObjectNotExists(Unknown Source)
  at org.hsqldb.StatementSchema.setOrCheckObjectName(Unknown Source)
  at org.hsqldb.StatementSchema.getResult(Unknown Source)
  at org.hsqldb.StatementSchema.execute(Unknown Source)
  at org.hsqldb.Session.executeCompiledStatement(Unknown Source)
  at org.hsqldb.Session.executeDirectStatement(Unknown Source)
  at org.hsqldb.Session.execute(Unknown Source) ... 52 more 
  </code></pre>
  
  <p>I tried using 'IF NOT EXISTS' when creating that table but when I go to create the sequence I'm getting the same error. So it's trying to do more than just that one table, and I can't use 'IF NOT EXISTS' on a CREATE SEQUENCE statement so I'm stuck there. </p>
  
  <p>Is there any reason why my data seems to be loaded again? I'm also occasionally getting this error: </p>
  
  <pre><code>2012-10-16 10:55:48,489 [Thread-0] WARN
  org.springframework.jdbc.datasource.embedded.HsqlEmbeddedDatabaseConfigurer:shutdown:46 - Could not shutdown embedded database java.sql.SQLException: Database lock acquisition failure: attempt to connect while db opening /closing
  at org.hsqldb.jdbc.Util.sqlException(Unknown Source)
  at org.hsqldb.jdbc.Util.sqlException(Unknown Source)
  at org.hsqldb.jdbc.JDBCConnection.&lt;init&gt;(Unknown Source)
  at org.hsqldb.jdbc.JDBCDriver.getConnection(Unknown Source)
  at org.hsqldb.jdbc.JDBCDriver.connect(Unknown Source)
  at org.springframework.jdbc.datasource.SimpleDriverDataSource.getConnectionFromDriver(SimpleDriverDataSource.java:140)
  at org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.getConnectionFromDriver(AbstractDriverBasedDataSource.java:149)
  at org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.getConnection(AbstractDriverBasedDataSource.java:119)
  at org.springframework.jdbc.datasource.embedded.AbstractEmbeddedDatabaseConfigurer.shutdown(AbstractEmbeddedDatabaseConfigurer.java:40)
  at org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseFactory.shutdownDatabase(EmbeddedDatabaseFactory.java:152)
  at org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseFactoryBean.destroy(EmbeddedDatabaseFactoryBean.java:65)
  at org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:211)
  at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:498)
  at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:474)
  at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:442)
  at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:1071)
  at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:1045)
  at org.springframework.context.support.AbstractApplicationContext$1.run(AbstractApplicationContext.java:963) Caused by: org.hsqldb.HsqlException: Database lock acquisition failure: attempt to connect while db opening /closing at org.hsqldb.error.Error.error(Unknown Source)
  at org.hsqldb.error.Error.error(Unknown Source)
  at org.hsqldb.error.Error.error(Unknown Source)
  at org.hsqldb.DatabaseManager.getDatabase(Unknown Source)
  at org.hsqldb.DatabaseManager.newSession(Unknown Source) ... 16 more
  </code></pre>