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This is a fork of the implementation of the JSON Schema Core Draft v4 specification built with the org.json API which also supports internationalization

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package org.everit.json.schema.loader;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

import org.json.JSONArray;
import org.json.JSONObject;

/**
 * Utility class simplifying working with org.json.JSONObject and JSONArray in a way that it also works
 * on android.
 */
public class OrgJsonUtil {

    /**
     * Used as a replacement of {@code JSONObject#toMap()} (which doesn't exist in the android version of org.json).
     */
    public static Map toMap(JSONObject obj) {
        Map rval = new HashMap<>(obj.length());
        Iterator keyIt = obj.keys();
        while (keyIt.hasNext()) {
            String key = keyIt.next();
            Object rawValue = obj.get(key);
            Object convertedValue = convertValue(rawValue);
            rval.put(key, convertedValue);
        }
        return rval;
    }

    static Object convertValue(Object rawValue) {
        Object convertedValue;
        if (rawValue instanceof JSONObject) {
            convertedValue = toMap((JSONObject) rawValue);
        } else if (rawValue instanceof JSONArray) {
            convertedValue = toList((JSONArray) rawValue);
        } else {
            convertedValue = rawValue;
        }
        return convertedValue;
    }

    /**
     * Used as a replacement of {@code JSONArray#toList()} (which doesn't exist in the android version of org.json).
     */
    public static List