out of the pool

Author: Douglas Crockford

JSONObject.java

@@ -90,22 +90,9 @@ of this software and associated documentation files (the "Software"), to deal
  * </ul>
  *
  * @author JSON.org
- * @version 2013-04-18
+ * @version 2013-06-17
  */
 public class JSONObject {
-    /**
-     * The maximum number of keys in the key pool.
-     */
-    private static final int keyPoolSize = 100;
-
-    /**
-     * Key pooling is like string interning, but without permanently tying up
-     * memory. To help conserve memory, storage of duplicated key strings in
-     * JSONObjects will be avoided by using a key pool to manage unique key
-     * string objects. This is used by JSONObject.put(string, object).
-     */
-    private static HashMap keyPool = new HashMap(keyPoolSize);
-
     /**
      * JSONObject.NULL is equivalent to the value that JavaScript calls null,
      * whilst Java's null is equivalent to the value that JavaScript calls
@@ -1147,21 +1134,11 @@ public JSONObject put(String key, Map value) throws JSONException {
      *             If the value is non-finite number or if the key is null.
      */
     public JSONObject put(String key, Object value) throws JSONException {
-        String pooled;
         if (key == null) {
             throw new NullPointerException("Null key.");
         }
         if (value != null) {
             testValidity(value);
-            pooled = (String) keyPool.get(key);
-            if (pooled == null) {
-                if (keyPool.size() >= keyPoolSize) {
-                    keyPool = new HashMap(keyPoolSize);
-                }
-                keyPool.put(key, key);
-            } else {
-                key = pooled;
-            }
             this.map.put(key, value);
         } else {
             this.remove(key);