java7 クローズ処理を明示的に呼び出さない書き方

AutoClose.java

public class AutoClose {

	public static void main(String[] args) {
		try (AutoCloseable a = new AutoClose().new AutoCloseable()) {
			System.out.print("A");
		} catch (Exception e) {
			System.out.print("B");
		} finally {
			System.out.print("C");
		}
	}

	private class AutoCloseable implements java.lang.AutoCloseable {
		public void close() throws Exception {
			System.out.print("D");
		}
	}
}