if (numberOfBackups != 0) {
BackupFileRotation bfr = new BackupFileRotation();
bfr.setNumberOfBackups(numberOfBackups);
bfr.setFormat("meta.*\\.xml");
bfr.setProcessDataDirectory(getProcessDataDirectory());
bfr.performBackup();
} else {
myLogger.warn("No backup configured for meta data files.");
}
}