this.prePolicies = componentContainer.buildMapWithRole( PreDownloadPolicy.class );
// Resolve expressions in the userConfigFilename and altConfigFilename
try
{
ExpressionEvaluator expressionEvaluator = new DefaultExpressionEvaluator( );
expressionEvaluator.addExpressionSource( new SystemPropertyExpressionSource( ) );
String userConfigFileNameSysProps = System.getProperty( "archiva.user.configFileName" );
if ( StringUtils.isNotBlank( userConfigFileNameSysProps ) )
{
userConfigFilename = userConfigFileNameSysProps;
}