protected void loadDatabaseProperties() {
		checkNotNull(home);
		Properties properties = home.getProperties("database.conf");
		properties.put("NGRINDER_HOME", home.getDirectory().getAbsolutePath());
		properties.putAll(System.getProperties());
		databaseProperties = new PropertiesWrapper(properties, databasePropertiesKeyMapper);
	}
Load database related properties. (database.conf)
ngrinder-controller/src/main/java/org/ngrinder/infra/config/Config.java