506 * {@link String#valueOf(Object)}.
507 *
508 * @return a string representation of this map
509 */
510 public String toString() {
511 Iterator<Entry<K,V>> i = entrySet().iterator();
512 if (! i.hasNext())
513 return "{}";
514
515 StringBuilder sb = new StringBuilder();
516 sb.append('{');
517 for (;;) {
518 Entry<K,V> e = i.next();
519 K key = e.getKey();
520 V value = e.getValue();
521 sb.append(key == this ? "(this Map)" : key);
522 sb.append('=');
523 sb.append(value == this ? "(this Map)" : value);
524 if (! i.hasNext())
525 return sb.append('}').toString();
526 sb.append(", ");
527 }
528 }
529
530 /**
531 * Returns a shallow copy of this <tt>AbstractMap</tt> instance: the keys
532 * and values themselves are not cloned.
533 *
534 * @return a shallow copy of this map
535 */
536 protected Object clone() throws CloneNotSupportedException {
537 AbstractMap<K,V> result = (AbstractMap<K,V>)super.clone();
538 result.keySet = null;
539 result.values = null;
540 return result;
541 }
542
543 /**
544 * Utility method for SimpleEntry and SimpleImmutableEntry.
545 * Test for equality, checking for nulls.
546 */
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506 * {@link String#valueOf(Object)}.
507 *
508 * @return a string representation of this map
509 */
510 public String toString() {
511 Iterator<Entry<K,V>> i = entrySet().iterator();
512 if (! i.hasNext())
513 return "{}";
514
515 StringBuilder sb = new StringBuilder();
516 sb.append('{');
517 for (;;) {
518 Entry<K,V> e = i.next();
519 K key = e.getKey();
520 V value = e.getValue();
521 sb.append(key == this ? "(this Map)" : key);
522 sb.append('=');
523 sb.append(value == this ? "(this Map)" : value);
524 if (! i.hasNext())
525 return sb.append('}').toString();
526 sb.append(',').append(' ');
527 }
528 }
529
530 /**
531 * Returns a shallow copy of this <tt>AbstractMap</tt> instance: the keys
532 * and values themselves are not cloned.
533 *
534 * @return a shallow copy of this map
535 */
536 protected Object clone() throws CloneNotSupportedException {
537 AbstractMap<K,V> result = (AbstractMap<K,V>)super.clone();
538 result.keySet = null;
539 result.values = null;
540 return result;
541 }
542
543 /**
544 * Utility method for SimpleEntry and SimpleImmutableEntry.
545 * Test for equality, checking for nulls.
546 */
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