Quelle StdoutCloseTest.java Sprache: JAVA

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

/*
* @test
* @bug 7118295
* @summary javac does not explicitly close -Xstdout file
* @modules jdk.compiler/com.sun.tools.javac.main
*          jdk.compiler/com.sun.tools.javac.util
* @run main StdoutCloseTest
*/

import com.sun.tools.javac.util.Log;
import com.sun.tools.javac.main.Main;

import java.io.*;
import java.util.ArrayList;
import java.util.List;

public class StdoutCloseTest {

    public static void main(String[] args) throws Exception {
        new StdoutCloseTest().test();
    }

    static final String program = "public class Test {\n" +
                                  " public boolean test() {\n" +
                                  " int i;\n" +
                                  " if (i > 0) return true;\n" +
                                  " return false;\n" +
                                  " }\n" +
                                  "}\n";

    public void test() throws Exception {
        final String sourceName = "Test.java";
        final String outName = "Test.out";
        File source = new File(sourceName);
        PrintWriter pw = new PrintWriter(source);
        pw.write(program);
        pw.flush();
        pw.close();

        PrintWriter log = compileClass(sourceName, outName);

        File outFile = new File(outName);
        if (!outFile.exists()) {
            throw new Exception("Output file was not created!");
        }
        if (!log.checkError()) { // will return true if the stream is still open
            log.close(); // Close output PrintWriter manually
            throw new Exception("Output file was still open!");
        }
    }

    public PrintWriter compileClass(String src, String out) {
        List<String> options = new ArrayList<>();
        options.add("-Xstdout");
        options.add(out);
        options.add(src);

        StringWriter sw = new StringWriter();
        PrintWriter pw = new PrintWriter(sw);
        Main compiler = new Main("javac", pw);
        compiler.compile(options.toArray(new String[options.size()]));
        pw.flush();
        if (sw.getBuffer().length() > 0) {
            System.err.println(sw.toString());
        }
        return compiler.log.getWriter(Log.WriterKind.NOTICE);
    }
}

quality89%

¤ Dauer der Verarbeitung: 0.21 Sekunden (vorverarbeitet) ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung ist noch experimentell.