question: protected final File createDBFFDCDirectory ( ) { File dbffdcDir = new File ( ffdcDirectoryName ) ; if ( ! dbffdcDir . exists ( ) ) { final boolean isDBFFDcDirCreated = dbffdcDir . mkdirs ( ) ; if ( isDBFFDcDirCreated ) { dbffdcDir = new File ( ffdcDirectoryName ) ; return dbffdcDir ; } } else if ( ! dbffdcDir . isDirectory ( ) ) { return null ; } return dbffdcDir ; }
target:  Creates the sub-directory where this particular back-up instance will be kept.