1 /*

     2  * Copyright (c) 2018, Google Inc. 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 8179373

    27  * @summary javac -verbose logs the class path multiple times

    28  * @modules jdk.compiler

    29  * @run main VerboseClassPathTest

    30  */

    31 

    32 import java.io.BufferedReader;

    33 import java.io.PrintWriter;

    34 import java.io.StringReader;

    35 import java.io.StringWriter;

    36 import java.nio.file.Path;

    37 import java.nio.file.Paths;

    38 import java.util.spi.ToolProvider;

    39 

    40 public class VerboseClassPathTest {

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

    42         new VerboseClassPathTest().run();

    43     }

    44 

    45     void run() throws Exception {

    46         String className = getClass().getName();

    47         Path testSrc = Paths.get(System.getProperty("test.src"));

    48         Path file = testSrc.resolve(className + ".java");

    49         ToolProvider javac = ToolProvider.findFirst("javac").orElseThrow();

    50         StringWriter sw = new StringWriter();

    51         PrintWriter pw = new PrintWriter(sw, true);

    52         int rc =

    53                 javac.run(

    54                         pw,

    55                         pw,

    56                         "-d",

    57                         ",",

    58                         "-source",

    59                         "8",

    60                         "-target",

    61                         "8",

    62                         "-verbose",

    63                         file.toString());

    64         String log = sw.toString();

    65         System.out.println(log);

    66         if (rc != 0) {

    67             throw new Exception("compilation failed: rc=" + rc);

    68         }

    69         String expect = "[search path for class files:";

    70         long count =

    71                 new BufferedReader(new StringReader(log))

    72                         .lines()

    73                         .filter(line -> line.startsWith(expect))

    74                         .count();

    75         if (count != 1) {

    76             throw new Exception("expected '" + expect + "' to appear once, actual: " + count);

    77         }

    78     }

    79 }