gistfile1.txt

    @Override
    public boolean equals(Object obj) {
        if (!(obj instanceof ConfigItem)) {
            return false;
        }
        ConfigItem<?> toCompare = (ConfigItem<?>) obj;
        if (!compareMetadata(toCompare.getMetaData(), metaData)) {
            if (!compareMetadata(metaData, toCompare.getMetaData())) {
                return false;
            }
        }
        return true;
    }

    private boolean compareMetadata(Map<String, String> first, Map<String, String> second) {
        Set<String> keys = first.keySet();
        for (String key : keys) {
            if (!second.containsKey(key) || !second.get(key).equals(first.get(key))) {
                return false;
            }
        }
        return true;
    }