return 0;
          }
        };

    assertEquals(0, (int) iter.next());

    try {
      iter.remove();
      fail("No exception thrown");
    } catch (UnsupportedOperationException expected) {
    }
  }

  public void testReentrantHasNext() {
    Iterator<Integer> iter =
        new AbstractIterator<Integer>() {
          @Override

            return 0;
          }
        };

    assertEquals(0, (int) iter.next());

    try {
      iter.remove();
      fail("No exception thrown");
    } catch (UnsupportedOperationException expected) {
    }
  }


  @GwtIncompatible // weak references
  @J2ktIncompatible
  @AndroidIncompatible // depends on details of GC
  public void testFreesNextReference() {

            return 0;
          }
        };

    assertEquals(0, (int) iter.next());

    try {
      iter.remove();
      fail("No exception thrown");
    } catch (UnsupportedOperationException expected) {
    }
  }


  @GwtIncompatible // weak references
  @J2ktIncompatible
  @AndroidIncompatible // depends on details of GC
  public void testFreesNextReference() {

            return 0;
          }
        };

    assertEquals(0, (int) iter.next());

    try {
      iter.remove();
      fail("No exception thrown");
    } catch (UnsupportedOperationException expected) {
    }
  }

  public void testReentrantHasNext() {
    Iterator<Integer> iter =
        new AbstractIterator<Integer>() {
          @Override