private static void createEmptyFile(File pFile) throws IOException {
		if ( pFile.exists() ) {
			if ( !pFile.delete() ) {
				throw new IOException( "couldn't delete the old file " + pFile.getAbsolutePath() );
			}
		}
		if ( !pFile.createNewFile() ) {
			throw new IOException( "couldn't create the file " + pFile.getAbsolutePath() );
		}
	}