1 /*
   2  * Copyright (c) 2017, 2018, 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 package gc.g1.unloading;
  25 
  26 import jdk.test.lib.Utils;
  27 
  28 import java.nio.file.Files;
  29 import java.nio.file.Path;
  30 import java.nio.file.Paths;
  31 
  32 /**
  33  * Uses {@link gc.g1.unloading.GenClassPoolJar} to build {@code classPool.jar}
  34  * in current directory.
  35  */
  36 public class GenClassesBuilder {
  37     public static void main(String[] args) {
  38         Path template = testRoot().resolve("vmTestbase")
  39                                   .resolve("gc")
  40                                   .resolve("g1")
  41                                   .resolve("unloading")
  42                                   .resolve("ClassNNN.java.template")
  43                                   .toAbsolutePath();
  44         Path dir = Paths.get(".").toAbsolutePath();
  45         String count = "1000";
  46         if (Files.notExists(template)) {
  47             throw new Error("can't find template file: " + template);
  48         }
  49         try {
  50             GenClassPoolJar.main(new String[]{template.toString(), dir.toString(), count});
  51         } catch (Exception e) {
  52             throw new Error("can't generate classPool.jar", e);
  53         }
  54     }
  55 
  56     private static Path testRoot() {
  57         Path p = Paths.get(Utils.TEST_SRC);
  58         while (!Files.exists(p.resolve("TEST.ROOT"))) {
  59             p = p.getParent();
  60         }
  61         return p;
  62     }
  63 }
  64 
  65