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package port.org.bouncycastle.asn1;

import java.io.IOException;
import java.util.Enumeration;

class LazyConstructionEnumeration implements Enumeration {

	private ASN1InputStream aIn;
	private Object nextObj;

	public LazyConstructionEnumeration(byte[] encoded) {
		aIn = new ASN1InputStream(encoded, true);
		nextObj = readObject();
	}

	@Override
	public boolean hasMoreElements() {
		return nextObj != null;
	}

	@Override
	public Object nextElement() {
		Object o = nextObj;

		nextObj = readObject();

		return o;
	}

	private Object readObject() {
		try {
			return aIn.readObject();
		} catch (IOException e) {
			throw new ASN1ParsingException("malformed DER construction: " + e, e);
		}
	}

}




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