Version of the DataSource library is {@value}.
System.getProperty(PROP_ENABLE_REFERENCE_CACHE)= "true" means the reference cache should be used.
System.getProperty(PROP_ENABLE_LOG_EXCEPTIONS)= "true" means runtime exceptions should be logged.
System.getProperty(PROP_ENABLE_CLEAN_CACHE)= "true" means old files in the cache should be removed