question: public static void performSaveAs ( String schemaPrefixFileName , String selFilePath , ContainerConfig containerConfig ) { try { File fileWithDefaultConfiguration = createContainerSchemaFile ( schemaPrefixFileName , selFilePath ) ; updateFile ( containerConfig , fileWithDefaultConfiguration . getPath ( ) , schemaPrefixFileName ) ; } catch ( Exception e ) { e . printStackTrace ( ) ; } }
target:  Save content of ContainerConfig instance into xml file( schema or configuration ).