1/*
2 *  Licensed to the Apache Software Foundation (ASF) under one or more
3 *  contributor license agreements.  See the NOTICE file distributed with
4 *  this work for additional information regarding copyright ownership.
5 *  The ASF licenses this file to You under the Apache License, Version 2.0
6 *  (the "License"); you may not use this file except in compliance with
7 *  the License.  You may obtain a copy of the License at
8 *
9 *     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 */
17
18/**
19* @author Vera Y. Petrashkova
20* @version $Revision$
21*/
22
23package org.apache.harmony.security.tests.support.cert;
24
25import java.security.InvalidAlgorithmParameterException;
26import java.security.cert.CertPathBuilderException;
27import java.security.cert.CertPathBuilderResult;
28import java.security.cert.CertPathBuilderSpi;
29import java.security.cert.CertPathParameters;
30
31/**
32 * Additional class for verification CertPathBuilderSpi
33 * and CertPathBuilder
34
35 */
36
37public class MyCertPathBuilderSpi extends CertPathBuilderSpi {
38    private int swi = 0;
39    public CertPathBuilderResult engineBuild(CertPathParameters params)
40            throws CertPathBuilderException, InvalidAlgorithmParameterException {
41        swi++;
42        if ((params == null) && ((swi %2 ) != 0)) {
43            throw new CertPathBuilderException("Null parameter");
44        }
45        return null;
46    }
47}