grails.config.locations = ["classpath:mytool-config.properties"]

dataSource.username = "sa"
dataSource.password = "db!admin"
dataSource.url = "jdbc:h2:file:E:\MyTool\db\MyTool;MVCC=TRUE;LOCK_TIMEOUT=10000"

dataSource {
    jmxExport = true
    driverClassName = "org.h2.Driver"
    pooled = true
}
hibernate {
    cache.use_second_level_cache = true
    cache.region.factory_class = 'org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory' // Hibernate 4
    singleSession = true // configure OSIV singleSession mode
    flush.mode = 'manual' // OSIV session flush mode outside of transactional context
}

// environment specific settings
environments {
    development {
        dataSource {
            dbCreate = "update"
            logSql = false
        }
        hibernate.cache.use_query_cache = false
    }
    production {
        dataSource {
            dbCreate = "update"
            logSql = false
        }
        hibernate.cache.use_query_cache = true
    }
}

2016-02-09 11:59:35,797 [localhost-startStop-1] ERROR pool.ConnectionPool  - Unable to create initial connections of pool.
java.sql.SQLException: Driver:org.h2.Driver@3871b7bc returned null for URL:"jdbc:h2:file:E:/M3ReleaseTool/db/M3ReleaseTool;MVCC=TRUE;LOCK_TIMEOUT=10000"