public int deletePackageClassList(String packageName) throws Exception {
		String[] tagList = new String[1];
		tagList[0] = packageName;
		String[] keys = OkuyamaManager.getKeysByTag(tagList);
		if (keys == null) {
			return 0;
		}
		
		for (String key : keys) {
			OkuyamaManager.del(key);
		}
		
		return keys.length;
	}