Quelle T6980017.java Sprache: JAVA

/*
* Copyright (c) 2010, 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 6980017
* @summary javap -XDdetail:source behaves badly if source not available.
* @modules jdk.compiler
*          jdk.jdeps/com.sun.tools.javap
*/

import java.io.*;

public class T6980017 {
    public static void main(String... args) throws Exception {
        new T6980017().run();
    }

    void run() throws Exception {

        String[] args = {
            "-v",
            "-XDdetails:source",
            "java.lang.Object"
        };

        StringWriter sw = new StringWriter();
        PrintWriter pw = new PrintWriter(sw);
        int rc = com.sun.tools.javap.Main.run(args, pw);
        pw.close();
        if (rc != 0)
            error("Unexpected exit code: " + rc);

        boolean foundBlankSourceLine = false;
        boolean foundNoSourceLine = false;
        for (String line: sw.toString().split("[\r\n]+")) {
            System.err.println(line);
            if (line.contains("Source code not available"))
                foundNoSourceLine = true;
            if (line.matches("\\s*\\( *[0-9]+\\)\\s*"))
                foundBlankSourceLine = true;
        }

        if (foundBlankSourceLine)
            error("found blank source lines");

        if (!foundNoSourceLine)
            error("did not find \"Source code not available\" message");

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

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

    int errors;
}

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