/*
 * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 */
import java.io.BufferedInputStream;
import java.io.DataInputStream;
import java.io.InputStream;
import java.io.PushbackInputStream;

/*
 * @test
 * @bug 8067801
 * @summary Ensure constructors throw NPE when passed a null stream
 */
public class ConstructorNPE {
    public static void main(String[] args) {
        int failures = 0;
        InputStream os = null;

        try {
            os = new BufferedInputStream(null);
            System.err.println("No NPE for BufferedInputStream(null)");
            failures++;
        } catch (NullPointerException ignore) {
        }

        try {
            os = new DataInputStream(null);
            System.err.println("No NPE for DataInputStream(null)");
            failures++;
        } catch (NullPointerException ignore) {
        }

        try {
            os = new PushbackInputStream(null);
            System.err.println("No NPE for PushbackInputStream(null)");
            failures++;
        } catch (NullPointerException ignore) {
        }

        if (failures > 0) throw new RuntimeException(failures + " failures");
    }
}