http://www.bouncycastle.org/java.html: The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.5 to JDK 1.8.
  • The Legion of the Bouncy Castle Inc. 
package org.bouncycastle.asn1;

import java.io.IOException;


An ASN.1 DER NULL object.


Preferably use the constant:  DERNull.INSTANCE.

/**
 * An ASN.1 DER NULL object.
 * <p>
 * Preferably use the constant:  DERNull.INSTANCE.
 */
public class DERNull
    extends ASN1Null
{
    public static final DERNull INSTANCE = new DERNull();

    private static final byte[]  zeroBytes = new byte[0];

    
Deprecated:use DERNull.INSTANCE
/**
     * @deprecated use DERNull.INSTANCE
     */
    public DERNull()
    {
    }

    boolean isConstructed()
    {
        return false;
    }

    int encodedLength()
    {
        return 2;
    }

    void encode(
        ASN1OutputStream out)
        throws IOException
    {
        out.writeEncoded(BERTags.NULL, zeroBytes);
    }
}