destroyCategory(levelCategory);  Hierarchy timeCategory = getCategory(LogEntry.TIME_CATEGORY);
    public void decategorize() throws Exception {        Hierarchy messageCategory = getCategory(LogEntry.MESSAGE_CATEGORY);        removeCategory(LogEntry.MESSAGE_CATEGORY);        destroyCategory(messageCategory);        Hierarchy levelCategory = getCategory(LogEntry.LEVEL_CATEGORY);        removeCategory(LogEntry.LEVEL_CATEGORY);        destroyCategory(levelCategory);        Hierarchy timeCategory = getCategory(LogEntry.TIME_CATEGORY);        removeCategory(LogEntry.TIME_CATEGORY);        destroyCategory(timeCategory);        super.decategorize();    }