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This module exists solely to package all other gwt modules into a single uber jar. This makes deploying to non-mavenized targets much easier. Of course, you would be wise to inherit your dependencies individually; the uber jar is intended for projects like collide, which have complex configuration, and adding many jars would be a pain.

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package xapi.collect.impl;

import java.util.Iterator;

public class SingletonIterator  implements Iterable{

  private final class Iter implements Iterator {
    private X object;

    public Iter(X object) {
      this.object = object;
    }

    @Override
    public boolean hasNext() {
      return object != null;
    }

    @Override
    public X next() {
      try {
        return object;
      } finally {
        object = null;
      }
    }

    @Override
    public void remove() {
      object = null;
    }
  }

  private final X singleton;

  public SingletonIterator(X singleton) {
    this.singleton = singleton;
  }

  @Override
  public Iterator iterator() {
    return new Iter(singleton);
  }

}