Java example source code file (T6873849.java)

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Java - Java tags/keywords

arraylist, exception, file, list, object, printwriter, string, stringwriter, t6873849, util, xdrawdiagnostics, xdsuppressnotes

The T6873849.java Java example source code

/*
 * Copyright (c) 2006, 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.File;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.ArrayList;
import java.util.List;

/*
 * @test
 * @bug 6873849
 * @summary suppress notes generated by javac
 */

public class T6873849 {
    public static void main(String... args) throws Exception {
        new T6873849().run();
    }

    public void run() throws Exception {
        test(null, "- compiler.note.unchecked.filename: T6873849.java" + newline +
                    "- compiler.note.unchecked.recompile" + newline);
        test("-XDsuppressNotes", "");
    }

    void test(String opt, String expect) throws Exception {
        List<String> args = new ArrayList();
        if (opt != null)
            args.add(opt);
        args.add("-d");
        args.add(testClasses.getPath());
        args.add("-XDrawDiagnostics");
        args.add(new File(testSrc, "T6873849.java").getPath());
        StringWriter sw = new StringWriter();
        PrintWriter pw = new PrintWriter(sw);
        System.err.println("compile: " + args);
        int rc = com.sun.tools.javac.Main.compile(args.toArray(new String[args.size()]), pw);
        pw.close();
        String out = sw.toString();
        System.out.println(out);
        if (rc != 0)
            throw new Exception("compilation failed unexpectedly");
        if (!out.equals(expect))
            throw new Exception("unexpected output from compiler");
    }

    void m(List t) {
        // force a note about unchecked usage
        t.add(new Object());
    }

    private File testSrc = new File(System.getProperty("test.src", "."));
    private File testClasses = new File(System.getProperty("test.classes", "."));
    private String newline = System.getProperty("line.separator");
}