Quelle LoadAndStoreNPE.java Sprache: JAVA

/*
* Copyright (c) 2015, 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
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.io.InputStream;
import java.io.OutputStream;
import java.io.Reader;
import java.io.Writer;
import java.util.Properties;

/*
* @test
* @bug 8073214 8075362
* @summary Tests to verify that load() and store() throw NPEs as advertised.
*/
public class LoadAndStoreNPE
{
    public static void main(String[] args) throws Exception
    {
        int failures = 0;

        Properties props = new Properties();

        try {
            props.store((OutputStream)null, "comments");
            failures++;
        } catch (NullPointerException e) {
            // do nothing
        }

        try {
            props.store((Writer)null, "comments");
            failures++;
        } catch (NullPointerException e) {
            // do nothing
        }

        try {
            props.load((InputStream)null);
            failures++;
        } catch (NullPointerException e) {
            // do nothing
        }

        try {
            props.load((Reader)null);
            failures++;
        } catch (NullPointerException e) {
            // do nothing
        }

        if (failures != 0) {
            throw new RuntimeException("LoadAndStoreNPE failed with "
                + failures + " errors!");
        }
    }
}

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