public void dropTable(String tableName) {
		Assert.hasText(tableName, "The tableName can not be empty nor null");
		try {
			jdbcTemplate.execute("drop table if exists " + tableName);
		}
		catch (DataAccessException ex) {
			LOGGER.error("Could not drop table [" + tableName + "]", ex);
		}
	}
If using a in memory database this method will shutdown the database.
spring-xd-test-fixtures/src/main/java/org/springframework/xd/test/fixtures/JdbcSink.java