1 /*

     2  * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    23 

    24 /*

    25  * @test

    26  * @bug 6987384

    27  * @summary -XprintProcessorRoundsInfo message printed with different timing than previous

    28  * @library ../../../lib

    29  * @build JavacTestingAbstractProcessor Test TestWithXstdout

    30  * @run main TestWithXstdout

    31  */

    32 

    33 import java.io.*;

    34 import java.nio.charset.*;

    35 import java.nio.file.*;

    36 import java.util.*;

    37 

    38 public class TestWithXstdout {

    39     public static void main(String... args) throws Exception {

    40         File testSrc = new File(System.getProperty("test.src"));

    41         File testClasses = new File(System.getProperty("test.classes"));

    42         File stdout = new File("stdout.out");

    43         run_javac("-XDrawDiagnostics",

    44                 "-XprintProcessorInfo",

    45                 "-Werror",

    46                 "-proc:only",

    47                 "-processor",  "Test",

    48                 "-Xstdout", stdout.getPath(),

    49                 "-classpath", testClasses.getPath(),

    50                 new File(testSrc, "Test.java").getPath());

    51         boolean ok = compare(stdout, new File(testSrc, "Test.out"));

    52         if (!ok)

    53             throw new Exception("differences found");

    54     }

    55 

    56     static void run_javac(String... args) throws IOException, InterruptedException {

    57         File javaHome = new File(System.getProperty("java.home"));

    58         if (javaHome.getName().equals("jre"))

    59             javaHome = javaHome.getParentFile();

    60         File javac = new File(new File(javaHome, "bin"), "javac");

    61         String toolOpts = System.getProperty("test.tool.vm.opts");

    62 

    63         List<String> opts = new ArrayList<>();

    64         opts.add(javac.getPath());

    65         opts.addAll(Arrays.asList(toolOpts.trim().split("[\\s]+")));

    66         opts.addAll(Arrays.asList(args));

    67         System.out.println("exec: " + opts);

    68         ProcessBuilder pb = new ProcessBuilder(opts);

    69         pb.redirectErrorStream();

    70         Process p = pb.start();

    71         try (BufferedReader r = new BufferedReader(new InputStreamReader(p.getInputStream()))) {

    72             String line;

    73             while ((line = r.readLine()) != null)

    74                 System.out.println();

    75         }

    76         int rc = p.waitFor();

    77         if (rc != 0)

    78             System.out.println("javac exited, rc=" + rc);

    79     }

    80 

    81     static boolean compare(File a, File b) throws IOException {

    82         List<String> aLines = Files.readAllLines(a.toPath(), Charset.defaultCharset());

    83         List<String> bLines = Files.readAllLines(b.toPath(), Charset.defaultCharset());

    84         System.out.println(a + ": " + aLines.size() + " lines");

    85         System.out.println(b + ": " + bLines.size() + " lines");

    86         return aLines.equals(bLines);

    87     }

    88 }