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Datei: T8033180.java Sprache: JAVA

/*
* Copyright (c) 2014, 2016, 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.
*/

/*
* @test
* @bug 8033180
* @summary Bad newline characters
* @modules jdk.jdeps/com.sun.tools.javap
*/

import java.io.*;
import java.util.*;

public class T8033180 {

    public static void main(String... args) throws Exception {
        new T8033180().run();
    }

    void run() throws Exception {
        // fast-track this case, because test cannot fail in this case
        if (lineSep.equals(nl))
            return;

        test("-help");
        test("-version");

        if (errors > 0)
            throw new Exception(errors + " errors occurred");
    }

    static final String lineSep = System.getProperty("line.separator");
    static final String nl = "\n";

    void test(String... opts) throws Exception {
        System.err.println("test " + Arrays.asList(opts));
        List<String> args = new ArrayList<String>();
        args.addAll(Arrays.asList(opts));
        StringWriter sw = new StringWriter();
        PrintWriter pw = new PrintWriter(sw);
        int rc = com.sun.tools.javap.Main.run(args.toArray(new String[args.size()]), pw);
        pw.close();
        String out = sw.toString();
        if (rc != 0)
            throw new Exception("javap failed unexpectedly: rc=" + rc);

        // remove all valid platform newline sequences
        String out2 = out.replace(lineSep, "");

        // count the remaining simple newline characters
        int count = 0;
        int i = out2.indexOf(nl, 0);
        while (i != -1) {
            count++;
            i = out2.indexOf(nl, i + nl.length());
        }

        if (count > 0)
            error(count + " newline characters found");
    }

    void error(String msg) {
        System.err.println("Error: " + msg);
        errors++;
    }

    int errors = 0;
}

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