@Override
        public SQLXML createSQLXML() throws SQLException {
            return delegate.createSQLXML();
        }
Blocking data source wrapper that should avoid to exhaustion of database connections.
It is a better choice than using a connection pool because database connections can be released as soon as possible.
embedded-database-spring-test/src/main/java/io/zonky/test/db/provider/support/BlockingDatabaseWrapper.java