Class IteratorEnumeration

classpath/java/util/Collections.java:203–217

  }
  
  static class IteratorEnumeration<T> implements Enumeration<T> {
    private final Iterator<T> it;

    public IteratorEnumeration(Iterator<T> it) {
      this.it = it;
    }

    public T nextElement() {
      return it.next();
    }

    public boolean hasMoreElements() {
      return it.hasNext();
    }
  }

  static class SynchronizedCollection<T> implements Collection<T> {
    protected final Object lock;