01: /**
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: */package org.apache.geronimo.crypto.asn1;
17:
18: import java.io.IOException;
19:
20: /**
21: * A NULL object.
22: */
23: public class DERNull extends ASN1Null {
24: byte[] zeroBytes = new byte[0];
25:
26: public DERNull() {
27: }
28:
29: void encode(DEROutputStream out) throws IOException {
30: out.writeEncoded(NULL, zeroBytes);
31: }
32:
33: public boolean equals(Object o) {
34: if ((o == null) || !(o instanceof DERNull)) {
35: return false;
36: }
37:
38: return true;
39: }
40:
41: public int hashCode() {
42: return 0;
43: }
44: }
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